source: trunk/Include/Classes/System/Drawing/Graphics.ab@ 497

' Classes/System/Drawing/Graphics.ab

Class Brush : End Class
Class Pen : End Class
Class StringFormat : End Class
Class Image : End Class
Class ImageAttributes : End Class
Class Metafile : End Class
Class Region : End Class
Class GraphicsPath : End Class
Class CachedBitmap : End Class

Class Graphics
Public
    '=========================================================================
    ' Properties
    '=========================================================================
    Const Function Clip() As Region
        Dim r As Region
        GetClip(r)
        Return r
    End Function

    Sub Clip(region As /*Const*/ Region)
        SetClip(region, CombineMode.Replace)
    End Sub

    Const Function ClipBounds() As RectangleF
        Dim rc As RectangleF
        GetClipBounds(rc)
        Return rc
    End Function

    Sub ClipBounds(rc As RectangleF)
        SetClipBounds(rc)
    End Sub

    Function CompositingMode() As CompositingMode
        Return GetCompositingMode()
    End Function

    Sub CompositingMode(mode As CompositingMode)
        SetCompositingMode(mode)
    End Sub

    Function CompositingQuality() As CompositingQuality
        Return GetCompositingQuality()
    End Function

    Sub CompositingQuality(cq As CompositingQuality)
        SetCompositingQuality(cq)
    End Sub

    Const Function DpiX() As Single
        Dim dpi As Single
        SetStatus(GdipGetDpiX(nativeGraphics, dpi))
        Return dpi
    End Function

    Const Function DpiY() As Single
        Dim dpi As Single
        SetStatus(GdipGetDpiY(nativeGraphics, dpi))
        Return dpi
    End Function

    Const Function InterpolationMode() As InterpolationMode
        Return GetInterpolationMode()
    End Function

    Sub InterpolationMode(im As InterpolationMode)
        SetInterpolationMode(im)
    End Sub

    Const Function IsClipEmpty() As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsClipEmpty(nativeGraphics, b))
        Return b
    End Function

    Const Function IsVisibleClipEmpty() As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsVisibleClipEmpty(nativeGraphics, b))
        Return b
    End Function

    Function PageScale(scale As Single) As Status
        Return SetStatus(GdipSetPageScale(nativeGraphics, scale))
    End Function

    Const Function PageScale() As Single
        Dim scale As Single
        SetStatus(GdipGetPageScale(nativeGraphics, scale))
        Return scale
    End Function

    Const Function PageUnit() As GraphicsUnit
        Dim unit As GraphicsUnit
        SetStatus(GdipGetPageUnit(nativeGraphics, unit))
        Return unit
    End Function

    Function PageUnit(unit As GraphicsUnit) As Status
        Return SetStatus(GdipSetPageUnit(nativeGraphics, unit))
    End Function

    Function PixelOffsetMode() As PixelOffsetMode
        Return GetPixelOffsetMode()
    End Function

    Sub PixelOffsetMode(mode  As PixelOffsetMode)
        SetPixelOffsetMode(mode)
    End Sub

    Function RenderingOrigin() As Point
        Dim pt As Point
        GetRenderingOrigin(pt.X, pt.Y)
        Return pt
    End Function

    Sub RenderingOrigin(pt As Point)
        SetRenderingOrigin(pt.X, pt.Y)
    End Sub

    Function SmoothingMode() As SmoothingMode
        Return GetSmoothingMode()
    End Function

    Sub SmoothingMode(mode As SmoothingMode)
        SetSmoothingMode(mode)
    End Sub

    Function TextContrast() As DWord
        Return GetTextContrast()
    End Function

    Sub TextContrast(contrast As DWord)
        SetTextContrast(contrast)
    End Sub

    Function TextRenderingHint() As TextRenderingHint
        Return GetTextRenderingHint()
    End Function

    Sub TextRenderingHint(mode As TextRenderingHint)
        SetTextRenderingHint(mode)
    End Sub

    Function Transform() As Matrix
        Dim matrix As Matrix
        GetTransform(matrix)
        Return matrix
    End Function

    Sub Transform(matrix As Matrix)
        SetTransform(matirx)
    End Sub

    Function VisibleClipBounds() As RectangleF
        Dim rc As RectangleF
        GetVisibleClipBounds(rc)
        Return rc
    End Function

    '=========================================================================
    ' Methods
    '=========================================================================
    Static Function FromHDC(hdc As HDC) As Graphics
        Return New Graphics(hdc)
    End Function

    Static Function FromHDC(hdc As HDC, hdevice As HANDLE) As Graphics
        Return New Graphics(hdc, hdevice)
    End Function

    Static Function FromHWND(hwnd As HWND) As Graphics
        Return New Graphics(hwnd, FALSE)
    End Function

    Static Function FromHWND(hwnd As DWord, icm As BOOL) As Graphics
        Return New Graphics(hwnd, icm)
    End Function

    Static Function FromImage(image As Image) As Graphics
        Return New Graphics(image)
    End Function

    Sub Graphics(hdc As HDC)
        Dim graphics = 0 As GpGraphics
        lastResult = GdipCreateFromHDC(hdc, graphics)
        SetNativeGraphics(graphics)
    End Sub

    Sub Graphics(hdc As HDC, hdevice As HANDLE)
        Dim graphics = 0 As *GpGraphics
        lastResult = GdipCreateFromHDC2(hdc, hdevice, graphics)
        SetNativeGraphics(graphics)
    End Sub

    Sub Graphics(hwnd As HWND)
        Dim graphics = 0 As *GpGraphics
        lastResult = GdipCreateFromHWND(hwnd, graphics)
        SetNativeGraphics(graphics)
    End Sub

    Sub Graphics(hwnd As HWND, icm As BOOL)
        Dim graphics = 0 As *GpGraphics
        If icm <> FALSE Then
            lastResult = GdipCreateFromHWNDICM(hwnd, graphics)
        Else
            lastResult = GdipCreateFromHWND(hwnd, graphics)
        End If
        SetNativeGraphics(graphics)
    End Sub

    Sub Graphics(image As Image)
        Dim graphics = 0 As *GpGraphics
        If (image != 0)
            lastResult = GdipGetImageGraphicsContext(image->NativeImage, graphics)
        End If
        SetNativeGraphics(graphics)
    End Sub

    Sub ~Graphics()
        GdipDeleteGraphics(nativeGraphics)
    End Sub

    Sub Flush()
        GdipFlush(nativeGraphics, FlushIntention.Flush)
    End Sub

    Sub Flush(intention As FlushIntention)
        GdipFlush(nativeGraphics, intention)
    End Sub

    '------------------------------------------------------------------------
    ' GDI Interop methods
    '------------------------------------------------------------------------

    ' Locks the graphics until ReleaseDC is called

    Function GetHDC() As HDC
        Dim hdc = 0 As HDC
        SetStatus(GdipGetDC(nativeGraphics, hdc))
        Return hdc
    End Function

    Sub ReleaseHDC(hdc As HDC)
        SetStatus(GdipReleaseDC(nativeGraphics, hdc))
    End Sub

    '------------------------------------------------------------------------
    ' Rendering modes
    '------------------------------------------------------------------------

    Function SetRenderingOrigin(x As Long, y As Long) As Status
        Return SetStatus(GdipSetRenderingOrigin(nativeGraphics, x, y))
    End Function

    Const Function GetRenderingOrigin(x As Long, y As Long) As Status
        Return SetStatus(GdipGetRenderingOrigin(nativeGraphics, x, y))
    End Function

    Function SetCompositingMode(compositingMode As CompositingMode) As Status
        Return SetStatus(GdipSetCompositingMode(nativeGraphics, compositingMode))
    End Function

    Const Function GetCompositingMode() As CompositingMode
        Dim mode As CompositingMode
        SetStatus(GdipGetCompositingMode(nativeGraphics, mode))
        Return mode
    End Function

    Function SetCompositingQuality(compositingQuality As CompositingQuality)
        Return SetStatus(GdipSetCompositingQuality(nativeGraphics, compositingQuality))
    End Function

    Const Function GetCompositingQuality() As CompositingQuality
        Dim quality As CompositingQuality
        SetStatus(GdipGetCompositingQuality(nativeGraphics, quality))
        Return quality
    End Function

    Function SetTextRenderingHint(newMode As TextRenderingHint) As Status
        Return SetStatus(GdipSetTextRenderingHint(nativeGraphics, newMode))
    End Function

    Const Function GetTextRenderingHint() As TextRenderingHint
        Dim hint As TextRenderingHint
        SetStatus(GdipGetTextRenderingHint(nativeGraphics, hint))
        Return hint
    End Function

    Function SetTextContrast(contrast As DWord) As Status
        Return SetStatus(GdipSetTextContrast(nativeGraphics, contrast))
    End Function

    Const Function GetTextContrast() As DWord
        Dim contrast As DWord
        SetStatus(GdipGetTextContrast(nativeGraphics, contrast))
        Return contrast
    End Function

    Const Function GetInterpolationMode() As InterpolationMode
        Dim mode = InterpolationMode.Invalid As InterpolationMode
        SetStatus(GdipGetInterpolationMode(nativeGraphics, mode))
        Return mode
    End Function

    Function SetInterpolationMode(interpolationMode As InterpolationMode) As Status
        Return SetStatus(GdipSetInterpolationMode(nativeGraphics, interpolationMode))
    End Function

    Const Function GetSmoothingMode() As SmoothingMode
        Dim smoothingMode = SmoothingMode.Invalid As SmoothingMode
        SetStatus(GdipGetSmoothingMode(nativeGraphics, smoothingMode))
        Return smoothingMode
    End Function

    Function SetSmoothingMode(smoothingMode As SmoothingMode) As Status
        Return SetStatus(GdipSetSmoothingMode(nativeGraphics, smoothingMode))
    End Function

    Const Function GetPixelOffsetMode() As PixelOffsetMode
        Dim pixelOffsetMode = PixelOffsetMode.Invalid As PixelOffsetMode
        SetStatus(GdipGetPixelOffsetMode(nativeGraphics, pixelOffsetMode))
        Return pixelOffsetMode
    End Function

    Function SetPixelOffsetMode(pixelOffsetMode As PixelOffsetMode) As Status
        Return SetStatus(GdipSetPixelOffsetMode(nativeGraphics, pixelOffsetMode))
    End Function

    '------------------------------------------------------------------------
    ' Manipulate current world transform
    '------------------------------------------------------------------------

    Function SetTransform(matrix As /*Const*/ *Matrix) As Status
        Return SetStatus(GdipSetWorldTransform(nativeGraphics, matrix->nativeMatrix))
    End Function

    Function ResetTransform() As Status
        Return SetStatus(GdipResetWorldTransform(nativeGraphics))
    End Function

    Function MultiplyTransform(matrix As /*Const*/ Matrix) As Status
        Return SetStatus(GdipMultiplyWorldTransform(nativeGraphics, matrix->nativeMatrix, MatrixOrder.Prepend))
    End Function

    Function MultiplyTransform(matrix As /*Const*/ Matrix, order As MatrixOrder) As Status
        Return SetStatus(GdipMultiplyWorldTransform(nativeGraphics, matrix->nativeMatrix, order))
    End Function

    Function TranslateTransform(dx As Single, dy As Single) As Status
        Return SetStatus(GdipTranslateWorldTransform(nativeGraphics, dx, dy, MatrixOrder.Prepend))
    End Function

    Function TranslateTransform(dx As Single, dy As Single, order As MatrixOrder) As Status
        Return SetStatus(GdipTranslateWorldTransform(nativeGraphics, dx, dy, order))
    End Function

    Function ScaleTransform(sx As Single, sy As Single) As Status
        Return SetStatus(GdipScaleWorldTransform(nativeGraphics, sx, sy, MatrixOrder.Prepend))
    End Function

    Function ScaleTransform(sx As Single, sy As Single, order As MatrixOrder) As Status
        Return SetStatus(GdipScaleWorldTransform(nativeGraphics, sx, sy, order))
    End Function

    Function RotateTransform(angle As Single) As Status
        Return SetStatus(GdipRotateWorldTransform(nativeGraphics, angle, MatrixOrder.Prepend))
    End Function

    Function RotateTransform(angle As Single, order As MatrixOrder) As Status
        Return SetStatus(GdipRotateWorldTransform(nativeGraphics, angle, order))
    End Function

    Const Function GetTransform(matrix As Matrix) As Status
        Return SetStatus(GdipGetWorldTransform(nativeGraphics, matrix->nativeMatrix))
    End Function

    Const Function TransformPoints(destSpace As CoordinateSpace, srcSpace As CoordinateSpace, pts As PointF, count As Long) As Status
        Return SetStatus(GdipTransformPoints(nativeGraphics, destSpace, srcSpace, pts, count))
    End Function

    Const Function TransformPoints(destSpace As CoordinateSpace, srcSpace As CoordinateSpace, pts As Point, count As Long) As Status
        Return SetStatus(GdipTransformPointsI(nativeGraphics, destSpace, srcSpace, pts, count))
    End Function

    '------------------------------------------------------------------------
    ' GetNearestColor (for <= 8bpp surfaces).   Note: Alpha is ignored.
    '------------------------------------------------------------------------

    Const Function GetNearestColor(color As Color) As Status
        Dim argb = color->Value
        Dim status = SetStatus(GdipGetNearestColor(nativeGraphics, argb))
        color->Value = argb
        Return status
    End Function

    Function DrawLine(pen As /*Const*/ Pen, x1 As Single, y1 As Single, x2 As Single, y2 As Single) As Status
        Return SetStatus(GdipDrawLine(nativeGraphics, pen->nativePen, x1, y1, x2, y2))
    End Function

    Function DrawLine(pen As /*Const*/ Pen, pt1 As /*Const*/ PointF, pt2 As /*Const*/ PointF) As Status
        Return DrawLine(pen, pt1.X, pt1.Y, pt2.X, pt2.Y)
    End Function

    Function DrawLines(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipDrawLines(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawLine(pen As /*Const*/ Pen, x1 As Long, y1 As Long, x2 As Long, y2 As Long) As Status
        Return SetStatus(GdipDrawLineI(nativeGraphics, pen->nativePen, x1, y1, x2, y2))
    End Function

    Function DrawLine(pen As /*Const*/ Pen, pt1 As /*Const*/ Point, pt2 As /*Const*/ Point) As Status
        Return DrawLine(pen, pt1.X, pt1.Y, pt2.X, pt2.Y)
    End Function

    Function DrawLines(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipDrawLinesI(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawArc(pen As /*Const*/ Pen, x As Single, y As Single, width As Single, height As Single, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipDrawArc(nativeGraphics, pen->nativePen, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function DrawArc(pen As /*Const*/ Pen, rect As /*Const*/ RectangleF, startAngle As Single, sweepAngle As Single) As Status
        Return DrawArc(pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function DrawArc(pen As /*Const*/ Pen, x As Long, y As Long, width As Long, height As Long, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipDrawArcI(nativeGraphics, pen->nativePen, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function DrawArc(pen As /*Const*/ Pen, rect As /*Const*/ Rectangle, startAngle As Single, sweepAngle As Single) As Status
        Return DrawArc(pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function DrawBezier(pen As /*Const*/ Pen, x1 As Single, y1 As Single, x2 As Single, y2 As Single, x3 As Single, y3 As Single, x4 As Single, y4 As Single) As Status
        Return SetStatus(GdipDrawBezier(nativeGraphics, pen->nativePen, x1, y1,x2, y2, x3, y3, x4, y4))
    End Function

    Function DrawBezier(pen As /*Const*/ Pen, pt1 As /*Const*/ PointF, pt2 As /*Const*/ PointF, pt3 As /*Const*/ PointF, pt4 As /*Const*/ PointF) As Status
        Return DrawBezier(pen, pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y)
    End Function

    Function DrawBeziers(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipDrawBeziers(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawBezier(pen As /*Const*/ Pen, x1 As Long, y1 As Long, x2 As Long, y2 As Long, x3 As Long, y3 As Long, x4 As Long, y4 As Long) As Status
        Return SetStatus(GdipDrawBezierI(nativeGraphics, pen->nativePen, x1, y1, x2, y2, x3, y3, x4, y4))
    End Function

    Function DrawBezier(pen As /*Const*/ Pen, pt1 As /*Const*/ Point, pt2 As /*Const*/ Point, pt3 As /*Const*/ Point, pt4 As /*Const*/ Point) As Status
        Return DrawBezier(pen pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y)
    End Function

    Function DrawBeziers(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipDrawBeziersI(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawRectangle(pen As /*Const*/ Pen, rect As /*Const*/ RectangleF) As Status
        Return DrawRectangle(pen, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawRectangle(pen As /*Const*/ Pen, x As Single, y As Single, width As Single, height As Single) As Status
        Return SetStatus(GdipDrawRectangle(nativeGraphics, pen->nativePen, x, y, width, height))
    End Function

    Function DrawRectangles(pen As /*Const*/ Pen, rects As /*Const*/ *RectangleF, count As Long) As Status
        Return SetStatus(GdipDrawRectangles(nativeGraphics, pen->nativePen, rects, count))
    End Function

    Function DrawRectangle(pen As /*Const*/ Pen, rect As /*Const*/ Rectangle) As Status
        Return DrawRectangle(pen, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawRectangle(pen As /*Const*/ Pen, x As Long, y As Long, width As Long, height As Long) As Status
        Return SetStatus(GdipDrawRectangleI(nativeGraphics, pen->nativePen, x, y, width, height))
    End Function

    Function DrawRectangles(pen As /*Const*/ Pen, rects As /*Const*/ *Rectangle,  count As Long) As Status
        Return SetStatus(GdipDrawRectanglesI(nativeGraphics, pen->nativePen, rects, count))
    End Function

    Function DrawEllipse(pen As /*Const*/ Pen, rect As /*Const*/ RectangleF) As Status
        Return DrawEllipse(pen, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawEllipse(pen As /*Const*/ Pen, x As Single, y As Single, width As Single, height As Single) As Status
        Return SetStatus(GdipDrawEllipse(nativeGraphics, pen->nativePen, x, y, width, height))
    End Function

    Function DrawEllipse(pen As /*Const*/ Pen, rect As /*Const*/ Rectangle) As Status
        Return DrawEllipse(pen, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawEllipse(pen As /*Const*/ Pen, x As Long, y As Long, width As Long, height As Long) As Status
        Return SetStatus(GdipDrawEllipseI(nativeGraphics, pen->nativePen, x, y, width, height))
    End Function

    Function DrawPie(pen As /*Const*/ Pen, rect As /*Const*/ RectangleF, startAngle As Single, sweepAngle As Single) As Status
        Return DrawPie(pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function DrawPie(pen As /*Const*/ Pen, x As Single, y As Single, width As Single, height As Single, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipDrawPie(nativeGraphics, pen->nativePen, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function DrawPie(pen As /*Const*/ Pen, rect As /*Const*/ Rectangle, startAngle As Single, sweepAngle As Single) As Status
        Return DrawPie(pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function DrawPie(pen As /*Const*/ Pen, x As Long, y As Long, width As Long, height As Long, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipDrawPieI(nativeGraphics, pen->nativePen, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function DrawPolygon(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipDrawPolygon(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawPolygon(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipDrawPolygonI(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawPath(pen As /*Const*/ Pen, path As /*Const*/ GraphicsPath) As Status
        Return SetStatus(GdipDrawPath(nativeGraphics, pen->nativePen, path->nativePath))
'       Return SetStatus(GdipDrawPath(nativeGraphics, pen ? pen->nativePen : NULL, path ? path->nativePath : NULL))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipDrawCurve(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long, tension As Single) As Status
        Return SetStatus(GdipDrawCurve2(nativeGraphics, pen->nativePen, points,count, tension))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long, offset As Long, numberOfSegments As Long) As Status
        Return SetStatus(GdipDrawCurve3(nativeGraphics, pen->nativePen, points, count, offset,numberOfSegments, 0.5))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long, offset As Long, numberOfSegments As Long, tension As Single) As Status
        Return SetStatus(GdipDrawCurve3(nativeGraphics, pen->nativePen, points, count, offset,numberOfSegments, tension))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipDrawCurveI(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long, tension As Single) As Status
        Return SetStatus(GdipDrawCurve2I(nativeGraphics, pen->nativePen, points, count, tension))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long, offset As Long, numberOfSegments As Long) As Status
        Return SetStatus(GdipDrawCurve3I(nativeGraphics, pen->nativePen, points, count, offset, numberOfSegments, 0.5))
    End Function

    Function DrawCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long, offset As Long, numberOfSegments As Long, tension As Single) As Status
        Return SetStatus(GdipDrawCurve3I(nativeGraphics, pen->nativePen, points, count, offset, numberOfSegments, tension))
    End Function

    Function DrawClosedCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipDrawClosedCurve(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawClosedCurve(pen As /*Const*/ Pen, points As /*Const*/ *PointF, count As Long, tension As Single) As Status
        Return SetStatus(GdipDrawClosedCurve2(nativeGraphics, pen->nativePen, points, count, tension))
    End Function

    Function DrawClosedCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipDrawClosedCurveI(nativeGraphics, pen->nativePen, points, count))
    End Function

    Function DrawClosedCurve(pen As /*Const*/ Pen, points As /*Const*/ *Point, count As Long, tension As Single) As Status
        Return SetStatus(GdipDrawClosedCurve2I(nativeGraphics, pen->nativePen, points, count, tension))
    End Function

    Function Clear(color As /*Const*/ Color) As Status
        Return SetStatus(GdipGraphicsClear(nativeGraphics, color.Value))
    End Function

    Function FillRectangle(brush As /*Const*/ Brush, rect As /*Const*/ RectangleF) As Status
        Return FillRectangle(brush, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function FillRectangle(brush As /*Const*/ Brush, x As Single, y As Single, width As Single, height As Single) As Status
        Return SetStatus(GdipFillRectangle(nativeGraphics, brush->nativeBrush, x, y, width, height))
    End Function

    Function FillRectangles(brush As /*Const*/ Brush, rects As /*Const*/ *RectangleF, count As Long) As Status
        Return SetStatus(GdipFillRectangles(nativeGraphics,brush->nativeBrush,rects, count))
    End Function

    Function FillRectangle(brush As /*Const*/ Brush, rect As /*Const*/ Rectangle) As Status
        Return FillRectangle(brush, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function FillRectangle(brush As /*Const*/ Brush, x As Long, y As Long, width As Long, height As Long) As Status
        Return SetStatus(GdipFillRectangleI(nativeGraphics, brush->nativeBrush, x, y, width, height))
    End Function

    Function FillRectangles(brush As /*Const*/ Brush, rects As /*Const*/ *Rectangle, count As Long) As Status
        Return SetStatus(GdipFillRectanglesI(nativeGraphics, brush->nativeBrush, rects, count))
    End Function

    Function FillPolygon(brush As /*Const*/ Brush, points As /*Const*/ *PointF, count As Long) As Status
        Return FillPolygon(brush, points, count, FillModeAlternate)
    End Function

    Function FillPolygon(brush As /*Const*/ Brush, points As /*Const*/ *PointF, count As Long, fillMode As FillMode) As Status
        Return SetStatus(GdipFillPolygon(nativeGraphics, brush->nativeBrush, points, count, fillMode))
    End Function

    Function FillPolygon(brush As /*Const*/ Brush, points As /*Const*/ *Point, count As Long) As Status
        Return FillPolygon(brush, points, count, FillModeAlternate)
    End Function

    Function FillPolygon(brush As /*Const*/ Brush, points As /*Const*/ *Point, count As Long, fillMode As FillMode) As Status
        Return SetStatus(GdipFillPolygonI(nativeGraphics, brush->nativeBrush, points, count, fillMode))
    End Function

    Function FillEllipse(brush As /*Const*/ Brush, rect As /*Const*/ RectangleF) As Status
        Return FillEllipse(brush, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function FillEllipse(brush As /*Const*/ Brush, x As Single, y As Single, width As Single, height As Single) As Status
        Return SetStatus(GdipFillEllipse(nativeGraphics, brush->nativeBrush, x, y, width, height))
    End Function

    Function FillEllipse(brush As /*Const*/ Brush, rect As /*Const*/ Rectangle) As Status
        Return FillEllipse(brush, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function FillEllipse(brush As /*Const*/ Brush, x As Long, y As Long, width As Long, height As Long) As Status
        Return SetStatus(GdipFillEllipseI(nativeGraphics, brush->nativeBrush, x, y, width, height))
    End Function

    Function FillPie(brush As /*Const*/ Brush, rect As /*Const*/ RectangleF, startAngle As Single, sweepAngle As Single) As Status
        Return FillPie(brush, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function FillPie(brush As /*Const*/ Brush, x As Single, y As Single, width As Single, height As Single, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipFillPie(nativeGraphics, brush->nativeBrush, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function FillPie(brush As /*Const*/ Brush, rect As /*Const*/ Rectangle, startAngle As Single, sweepAngle As Single) As Status
        Return FillPie(brush, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle)
    End Function

    Function FillPie(brush As /*Const*/ Brush, x As Long, y As Long, width As Long, height As Long, startAngle As Single, sweepAngle As Single) As Status
        Return SetStatus(GdipFillPieI(nativeGraphics, brush->nativeBrush, x, y, width, height, startAngle, sweepAngle))
    End Function

    Function FillPath(brush As /*Const*/ Brush, path As /*Const*/ GraphicsPath) As Status
        Return SetStatus(GdipFillPath(nativeGraphics, brush->nativeBrush, path->nativePath))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *PointF, count As Long) As Status
        Return SetStatus(GdipFillClosedCurve(nativeGraphics, brush->nativeBrush, points, count))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *PointF, count As Long, fillMode As FillMode) As Status
        Return SetStatus(GdipFillClosedCurve2(nativeGraphics, brush->nativeBrush, points, count, 0.5, fillMode))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *PointF, count As Long, fillMode As FillMode, tension As Single) As Status
        Return SetStatus(GdipFillClosedCurve2(nativeGraphics, brush->nativeBrush, points, count, tension, fillMode))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *Point, count As Long) As Status
        Return SetStatus(GdipFillClosedCurveI(nativeGraphics, brush->nativeBrush, points, count))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *Point, count As Long, fillMode As FillMode) As Status
        Return SetStatus(GdipFillClosedCurve2I(nativeGraphics, brush->nativeBrush, points, count, 0.5, fillMode))
    End Function

    Function FillClosedCurve(brush As /*Const*/ Brush, points As /*Const*/ *Point, count As Long, fillMode As FillMode, tension As Single) As Status
        Return SetStatus(GdipFillClosedCurve2I(nativeGraphics, brush->nativeBrush, points, count, tension, fillMode))
    End Function

    Function FillRegion(brush As /*Const*/ Brush, region As /*Const*/ Region) As Status
        Return SetStatus(GdipFillRegion(nativeGraphics, brush->nativeBrush, region->nativeRegion))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ RectangleF) As Status
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Return SetStatus(GdipDrawString( nativeGraphics, str, length, nativeFont, layoutRect, 0, 0))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ Rectangle,
        stringFormat As /*Const*/ StringFormat, brush As /*Const*/ Brush) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(layoutRect) <> 0 Then
            nativeFormat = layoutRect.nativeFormat
        Else
            nativeFormat = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, layoutRect, nativeFormat, 0))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ RectangleF,
        stringFormat As /*Const*/ StringFormat, brush As /*Const*/ Brush) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If
        Dim nativeBrush As *GpBrush
        If VarPtr(brush) <> 0 Then
            nativeBrush = brush.nativeFormat
        Else
            nativeBrush = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, layoutRect, nativeFormat, nativeBrush))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, origin As /*Const*/ Point) As Status
        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, rect, 0, 0))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, origin As /*Const*/ PointF,
        brush As /*Const*/ Brush) As Status

        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeBrush As *GpBrush
        If VarPtr(brush) <> 0 Then
            nativeBrush = brush.nativeFormat
        Else
            nativeBrush = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, rect, 0, nativeBrush))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, origin As /*Const*/ PointF) As Status
        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, rect, 0, 0))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, origin As /*Const*/ PointF,
        stringFormat As /*Const*/ StringFormat) As Status

        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If
        Return SetStatus(GdipDrawString(nativeGraphics, str, length, nativeFont, rect, nativeFormat, 0))
    End Function

    Function DrawString(str As PCWSTR, length As Long, font As /*Const*/ Font, origin As /*Const*/ PointF,
        stringFormat As /*Const*/ StringFormat, brush As /*Const*/ Brush) As Status

        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If
        If VarPtr(brush) <> 0 Then
            nativeBrush = brush.nativeFormat
        Else
            nativeBrush = 0
        End If
        Return SetStatus(GdipDrawString( nativeGraphics, str, length, nativeFont, rect, nativeFormat, nativeBrush))
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ RectangleF,
        stringFormat As /*Const*/ StringFormat, boundingBox As RectangleF) As Status

        Return MeasureString(str, length, font, layoutRect, stringFormat, boundingBox, ByVal 0, ByVal 0)
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ RectangleF,
        stringFormat As /*Const*/ StringFormat, boundingBox As RectangleF,
        codepointsFitted As Long) As Status

        Return MeasureString(str, length, font, layoutRect, stringFormat, boundingBox, codepointsFitted, ByVal 0)
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font, layoutRect As /*Const*/ RectangleF,
        stringFormat As /*Const*/ StringFormat, boundingBox As RectangleF,
        codepointsFitted As Long, linesFilled As Long) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If
        Return SetStatus(GdipMeasureString(nativeGraphics, str, length, nativeFont, layoutRect, nativeFormat,
            boundingBox, codepointsFitted, linesFilled))
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        layoutRectSize As /*Const*/ SizeF, stringFormat As /*Const*/ StringFormat,
        size As SizeF) As Status

            Return MeasureString(str, length, font, layoutRectSize, stringFormat, size, ByVal 0, ByVal 0)
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        layoutRectSize As /*Const*/ SizeF, stringFormat As /*Const*/ StringFormat,
        size As SizeF, codepointsFitted As Long) As Status

            Return MeasureString(str, length, font, layoutRectSize, stringFormat, size, codepointsFitted, ByVal 0)
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        layoutRectSize As /*Const*/ SizeF, stringFormat As /*Const*/ StringFormat,
        size As SizeF, codepointsFitted As Long, linesFilled As Long) As Status

        Dim layoutRect As RectangleF(0, 0, layoutRectSize.Width, layoutRectSize.Height)
        Dim boundingBox As RectangleF, pBoundingBox As *RectangleF
        If VarPtr(size) <> 0 Then
            pBoundingBox = VarPtr(boundingBox)
        Else
            pBoundingBox = 0
        End If

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If
        Dim status = SetStatus(GdipMeasureString(nativeGraphics, str, length,
            nativeFont, layoutRect, nativeFormat, pBoundingBox, codepointsFitted, linesFilled))

        If VarPtr(size) <> 0 And status = Status.Ok Then
            size.Width  = boundingBox.Width
            size.Height = boundingBox.Height
        End Function

        Return status
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        origin As /*Const*/ PointF, stringFormat As /*Const*/ StringFormat,
        boundingBox As RectangleF) As Status

        Dim rect As RectangleF(origin.X, origin.Y, 0.0f, 0.0f)
        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If

        Return SetStatus(GdipMeasureString(nativeGraphics, str, length, nativeFont, rect, nativeFormat, boundingBox, 0, 0))
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        layoutRect As /*Const*/ RectangleF, boundingBox As RectangleF) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If

        Return SetStatus(GdipMeasureString(nativeGraphics, str, length, nativeFont, layoutRect, 0, boundingBox, 0, 0))
    End Function

    Const Function MeasureString(str As PCWSTR, length As Long, font As /*Const*/ Font,
        origin As /*Const*/ PointF, boundingBox As RectangleF) As Status
        Dim rect As RectangleF(origin.X, origin.Y, 0.0, 0.0)

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Return SetStatus(GdipMeasureString(nativeGraphics, str, length, nativeFont, rect, 0, boundingBox, 0, 0))
    End Function

    Const Function MeasureCharacterRanges(str As PCWSTR, length As Long, font As /*Const*/ Font,
        layoutRect As /*Const*/ RectangleF, stringFormat As /*Const*/ StringFormat,
        regionCount As Long, regions As *Region) As Status
        If regions = 0 Or regionCount <= 0 Then
            Return InvalidParameter
        End If

        Dim nativeRegions = _System_malloc(regionCount * SizeOf (GpRegion*)) As **GpRegion

        If nativeRegions = 0 Then
            Return OutOfMemory
        End If

        Dim i As Long
        For i = 0 To regionCount
            nativeRegions[i] = regions[i].nativeRegion
        Next

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeFormat As *GpStringFormat
        If VarPtr(stringFormat) <> 0 Then
            nativeFormat = stringFormat.nativeFormat
        Else
            nativeFormat = 0
        End If

        Dim status = SetStatus(GdipMeasureCharacterRanges(nativeGraphics,
            str, length, nativeFont, layoutRect, nativeFormat,regionCount, nativeRegions))
        _System_free(nativeRegions)
        Return status
    End Function

    Function DrawDriverString(text As /*Const*/ Word, length As Long, font As /*Const*/ Font,
        brush As /*Const*/ Brush, positions As /*Const*/ *PointF, flags As Long) As Status

        Return DrawDriverString(text, length, font, brush, positions, flags, ByVal 0)
    End Function

    Function DrawDriverString(text As /*Const*/ Word, length As Long, font As /*Const*/ Font,
        brush As /*Const*/ Brush, positions As /*Const*/ *PointF, flags As Long, matrix As /*Const*/ Matrix) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeBrush As *GpBrush
        If VarPtr(brush) <> 0 Then
            nativeBrush = brush.nativeBrush
        Else
            nativeBrush = 0
        End If
        Dim nativeMatrix As *GpMatrix
        If VarPtr(matrix) <> 0 Then
            nativeMatrix = matrix.nativeMatrix
        Else
            nativeMatrix = 0
        End If
        Return SetStatus(GdipDrawDriverString(nativeGraphics, text, length, nativeFont, nativeBrush, positions, flags, nativeMatrix))
    End Function

    Const Function MeasureDriverString(text As /*Const*/ Word, length As Long, font As /*Const*/ Font,
        positions As /*Const*/ *PointF, flags As Long, matrix As /*Const*/ Matrix, boundingBox As RectangleF) As Status

        Dim nativeFont As *GpFont
        If VarPtr(font) <> 0 Then
            nativeFont = font.nativeFormat
        Else
            nativeFont = 0
        End If
        Dim nativeMatrix As *GpMatrix
        If VarPtr(matrix) <> 0 Then
            nativeMatrix = matrix.nativeMatrix
        Else
            nativeMatrix = 0
        End If
        Return SetStatus(GdipMeasureDriverString(nativeGraphics, text, length, nativeFont, positions, flags, nativeMatrix, boundingBox))
    End Function

    ' Draw a cached bitmap on this graphics destination offset by
    ' x, y. Note this will fail with WrongState if the CachedBitmap
    ' native format differs from this Graphics.

    Function DrawCachedBitmap(cb As CachedBitmap, x As Long, y As Long) As Status
        Return SetStatus(GdipDrawCachedBitmap(nativeGraphics, cb->nativeCachedBitmap, x, y))
    End Function

    Function DrawImage(image As Image, point As /*Const*/ PointF) As Status
        Return DrawImage(image, point.X, point.Y)
    End Function

    Function DrawImage(image As Image, x As Single, y As Single) As Status
        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImage(nativeGraphics, nativeImage, x, y))
    End Function

    Function DrawImage(image As Image, rect As /*Const*/ RectangleF) As Status
        Return DrawImage(image, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawImage(image As Image, x As Single, y As Single, width As Single, height As Single) As Status
        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImageRect(nativeGraphics, nativeImage, x, y, width, height))
    End Function

    Function DrawImage(image As Image, point As /*Const*/ Point) As Status
        Return DrawImage(image, point.X, point.Y) As Status
    End Function

    Function DrawImage(image As Image, x As Long, y As Long) As Status
        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImageI(nativeGraphics, nativeImage, x, y))
    End Function

    Function DrawImage(image As Image, rect As /*Const*/ Rectangle) As Status
        Return DrawImage(image, rect.X, rect.Y, rect.Width, rect.Height)
    End Function

    Function DrawImage(image As Image, x As Long, y As Long, width As Long, height As Long) As Status
        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImageRectI(nativeGraphics, nativeImage, x, y, width, height))
    End Function

    ' Affine Draw Image
    ' destPoints.length = 3: rect => parallelogram
    '      destPoints[0] <=> top-left corner of the source rectangle
    '      destPoints[1] <=> top-right corner
    '      destPoints[2] <=> bottom-left corner
    ' destPoints.length = 4: rect => quad
    '      destPoints[3] <=> bottom-right corner

    Function DrawImage(image As Image, destPoints As /*Const*/ PointF, count As Long) As Status
        If count <> 3 And count <> 4 Then
            Return SetStatus(InvalidParameter)
        End If

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImagePoints(nativeGraphics, nativeImage, destPoints, count))
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ Point, count As Long) As Status
        If count <> 3 And count <> 4 Then
            Return SetStatus(InvalidParameter)
        End If

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImagePointsI(nativeGraphics, nativeImage, destPoints, count))
    End Function

    Function DrawImage(image As Image, x As Single, y As Single,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImagePointRect(nativeGraphics, nativeImage, x, y, srcx, srcy, srcwidth, srcheight, srcUnit))
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ RectangleF,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, 0, 0, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ RectangleF,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, 0, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ RectangleF,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes,
        callback As DrawImageAbort) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ RectangleF,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipDrawImageRectRect(nativeGraphics, nativeImageAttr,
            destRect.X, destRect.Y, destRect.Width, destRect.Height, srcx, srcy, srcwidth, srcheight,
            srcUnit, nativeImageAttr, callback, callbackData))
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ PointF, count As Long,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, 0, 0, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ PointF, count As Long,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, 0, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ PointF, count As Long,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes,
        callback As DrawImageAbort) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ PointF, count As Long,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipDrawImagePointsRect(nativeGraphics, nativeImage, destPoints, count,
            srcx, srcy, srcwidth, srcheight, srcUnit, nativeImageAttr, callback, callbackData))
    End Function

    Function DrawImage(image As Image, x As Long, y As Long,
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Return SetStatus(GdipDrawImagePointRectI(nativeGraphics, nativeImage, x, y, srcx, srcy, srcwidth, srcheight, srcUnit))
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ Rectangle,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, 0, 0, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ Rectangle,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, 0, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ Rectangle,
        srcx As Single, srcy As Single, srcwidth As Single, srcheight As Single, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort) As Status

        Return DrawImage(image, destRect, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, 0)
    End Function

    Function DrawImage(image As Image, destRect As /*Const*/ Rectangle,
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipDrawImageRectRectI(nativeGraphics, nativeImage,
            destRect.X, destRect.Y, destRect.Width, destRect.Height,
            srcx, srcy, srcwidth, srcheight, srcUnit, nativeImageAttr, callback, callbackData))
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ Point, count As Long,
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, 0, 0, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ Point, count As Long,
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, 0, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ Point, count As Long, _
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit, _
        imageAttributes As /*Const*/ ImageAttributes,
        callback As DrawImageAbort) As Status

        Return DrawImage(image, destPoints, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, 0)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ Point, count As Long,
        srcx As Long, srcy As Long, srcwidth As Long, srcheight As Long, srcUnit As GraphicsUnit,
        imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status

        Dim nativeImage As *GpImage
        If VarPtr(image) <> 0 Then
            nativeImage = image.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipDrawImagePointsRectI(nativeGraphics, nativeImage, destPoints, count,
            srcx, srcy, srcwidth, srcheight, srcUnit, nativeImageAttr, callback, callbackData))
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *Point, count As Long, srcRect As Rectangle, srcUnit As GraphicsUnit) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *PointF, count As Long, srcRect As RectangleF, srcUnit As GraphicsUnit) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit)
    End Function

    Function DrawImage(image As Image, x As Long, y As Long, srcRect As Rectangle, srcUnit As GraphicsUnit) As Status
        Return DrawImage(image, x, y, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit)
    End Function

    Function DrawImage(image As Image, x As Single, y As Single, srcRect As RectangleF, srcUnit As GraphicsUnit) As Status
        Return DrawImage(image, x, y, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *Point, count As Long, srcRect As Rectangle, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *PointF, count As Long, srcRect As RectangleF, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *Point, count As Long, srcRect As Rectangle, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes, callback)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *PointF, count As Long, srcRect As RectangleF, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes, callback)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *Point, count As Long, srcRect As Rectangle, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes, callback, callbackData)
    End Function

    Function DrawImage(image As Image, destPoints As /*Const*/ *PointF, count As Long, srcRect As RectangleF, srcUnit As GraphicsUnit, imageAttributes As /*Const*/ ImageAttributes, callback As DrawImageAbort, callbackData As VoidPtr) As Status
        Return DrawImage(image, destPoints, count, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit, imageAttributes, callback, callbackData)
    End Function

    ' The following methods are for playing an EMF+ to a graphics
    ' via the enumeration interface.  Each record of the EMF+ is
    ' sent to the callback (along with the callbackData).   Then
    ' the callback can invoke the Metafile::PlayRecord method
    ' to play the particular record.

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ PointF,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoint, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ PointF,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoint, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ PointF,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestPoint(nativeGraphics,
            nativeImage, destPoint, callback, callbackData,nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ Point,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoint, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ Point,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoint, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoint As /*Const*/ Point,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestPointI(nativeGraphics,
            nativeImage, destPoint, callback, callbackData,nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ RectangleF,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destRect, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ RectangleF,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destRect, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ RectangleF,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestRect(nativeGraphics,
            nativeImage, destRect, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ Rectangle,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destRect, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ Rectangle,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destRect, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destRect As /*Const*/ Rectangle,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestRectI(nativeGraphics,
            nativeImage, destRect, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *PointF, count As Long,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoints, count, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *PointF, count As Long,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoints, count, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *PointF, count As Long,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestPoints(nativeGraphics,
            nativeImage,destPoints, count, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *Point, count As Long,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoints, count, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *Point, count As Long,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoints, count, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, destPoints As /*Const*/ *Point, count As Long,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileDestPointsI(nativeGraphics,
            nativeImage,destPoints, count, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile,
        destPoint As /*Const*/ PointF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit,
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoint, count, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile,
        destPoint As /*Const*/ PointF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit,
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoint, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile,
        destPoint As /*Const*/ PointF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit,
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestPoint(nativeGraphics, _
            nativeImage, destPoint, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoint As /*Const*/ Point, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoint, count, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoint As /*Const*/ Point, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoint, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoint As /*Const*/ Point, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestPointI(nativeGraphics, _
            nativeImage, destPoint, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ RectangleF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destRect, count, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ RectangleF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destRect, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ RectangleF, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestRect(nativeGraphics, _
            nativeImage, destRect, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ Rectangle, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destRect, srcRect, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ Rectangle, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destRect, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destRect As /*Const*/ Rectangle, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestRectI(nativeGraphics, _
            nativeImage, destRect, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *PointF, count As Long, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoints, count, srcRect, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *PointF, count As Long, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoints, count, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *PointF, count As Long, srcRect As /*Const*/ RectangleF, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestPoints(nativeGraphics, _
            nativeImage, destPoints, count, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *Point, count As Long, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc) As Status

        Return EnumerateMetafile(metafile, destPoints, count, srcRect, srcUnit, callback, 0, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *Point, count As Long, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr) As Status

        Return EnumerateMetafile(metafile, destPoints, count, srcRect, srcUnit, callback, callbackData, 0)
    End Function

    Function EnumerateMetafile(metafile As /*Const*/ Metafile, _
        destPoints As /*Const*/ *Point, count As Long, srcRect As /*Const*/ Rectangle, srcUnit As GraphicsUnit, _
        callback As EnumerateMetafileProc, callbackData As VoidPtr, imageAttributes As /*Const*/ ImageAttributes) As Status

        Dim nativeImage As /*Const*/ *GpMetafile
        If VarPtr(metafile) <> 0 Then
            nativeImage = metafile.NativeImage
        Else
            nativeImage = 0
        End If
        Dim nativeImageAttr As *GpImageAttributes
        If VarPtr(imageAttributes) <> 0 Then
            nativeImageAttr = image.NativeImageAttr
        Else
            nativeImageAttr = 0
        End If

        Return SetStatus(GdipEnumerateMetafileSrcRectDestPointsI(nativeGraphics, nativeImage, _
            destPoints, count, srcRect, srcUnit, callback, callbackData, nativeImageAttr))
    End Function

    Function SetClip(g As /*Const*/ Graphics) As Status
        Return SetClip(g, CombineMode.Replace)
    End Function

    Function SetClip(rc As /*Const*/ RectangleF) As Status
        Return SetStatus(GdipSetClipRect(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Replace))
    End Function

    Function SetClip(rc As /*Const*/ Rectangle) As Status
        Return SetStatus(GdipSetClipRectI(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Replace))
    End Function

    Function SetClip(path As /*Const*/ GraphicsPath) As Status
        Return SetStatus(GdipSetClipPath(nativeGraphics, path->nativePath, CombineMode.Replace))
    End Function

    Function SetClip(region As /*Const*/ Region) As Status
        Return SetStatus(GdipSetClipRegion(nativeGraphics, region->nativeRegion, CombineMode.Replace))
    End Function

    Function SetClip(g As /*Const*/ Graphics, combineMode As CombineMode) As Status
        Return SetStatus(GdipSetClipGraphics(nativeGraphics, g->nativeGraphics, combineMode))
    End Function

    Function SetClip(rc As /*Const*/ RectangleF, combineMode As CombineMode) As Status
        Return SetStatus(GdipSetClipRect(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, combineMode))
    End Function

    Function SetClip(rc As /*Const*/ Rectangle, combineMode As CombineMode) As Status
        Return SetStatus(GdipSetClipRectI(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, combineMode))
    End Function

    Function SetClip(path As /*Const*/ GraphicsPath, combineMode As CombineMode) As Status
        Return SetStatus(GdipSetClipPath(nativeGraphics, path->nativePath, combineMode))
    End Function

    Function SetClip(region As /*Const*/ Region, combineMode As CombineMode) As Status
        Return SetStatus(GdipSetClipRegion(nativeGraphics, region->nativeRegion, combineMode))
    End Function

    ' This is different than the other SetClip methods because it assumes
    ' that the HRGN is already in device units, so it doesn't transform
    ' the coordinates in the HRGN.

    Function SetClip(hrgn As HRGN, combineMode As CombineMode /* = CombineModeReplace*/) As Status
        Return SetStatus(GdipSetClipHrgn(nativeGraphics, hrgn, combineMode))
    End Function

    Function IntersectClip(rc As /*Const*/ RectangleF) As Status
        Return SetStatus(GdipSetClipRect(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Intersect))
    End Function

    Function IntersectClip(rc As /*Const*/ Rectangle) As Status
        Return SetStatus(GdipSetClipRectI(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Intersect))
    End Function

    Function IntersectClip(region As /*Const*/ Region) As Status
        Return SetStatus(GdipSetClipRegion(nativeGraphics, region->nativeRegion, CombineMode.Intersect))
    End Function

    Function ExcludeClip(rc As /*Const*/ RectangleF) As Status
        Return SetStatus(GdipSetClipRect(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Exclude))
    End Function

    Function ExcludeClip(rc As /*Const*/ Rectangle) As Status
        Return SetStatus(GdipSetClipRectI(nativeGraphics, rc.X, rc.Y, rc.Width, rc.Height, CombineMode.Exclude))
    End Function

    Function ExcludeClip(region As /*Const*/ Region) As Status
        Return SetStatus(GdipSetClipRegion(nativeGraphics, region->nativeRegion, CombineMode.Exclude))
    End Function

    Function ResetClip() As Status
        Return SetStatus(GdipResetClip(nativeGraphics))
    End Function

    Function TranslateClip(dx As Single, dy As Single) As Status
        Return SetStatus(GdipTranslateClip(nativeGraphics, dx, dy))
    End Function

    Function TranslateClip(dx As Long, dy As Long) As Status
        Return SetStatus(GdipTranslateClipI(nativeGraphics, dx, dy))
    End Function

    Const Function GetClip(region As Region) As Status
        Return SetStatus(GdipGetClip(nativeGraphics, region->nativeRegion))
    End Function

    Const Function GetClipBounds(rc As RectangleF) As Status
        Return SetStatus(GdipGetClipBounds(nativeGraphics, rc))
    End Function

    Const Function GetClipBounds(rc As Rectangle) As Status
        Return SetStatus(GdipGetClipBoundsI(nativeGraphics, rc))
    End Function

    Const Function GetVisibleClipBounds(rc As RectangleF) As Status
        Return SetStatus(GdipGetVisibleClipBounds(nativeGraphics, rc))
    End Function

    Const Function GetVisibleClipBounds(rc As Rectangle) As Status
        Return SetStatus(GdipGetVisibleClipBoundsI(nativeGraphics, rc))
    End Function

    Const Function IsVisible(x As Long, y As Long) As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsVisiblePointI(nativeGraphics, x, y, b))
        Return b
    End Function

    Const Function IsVisible(pt As /*Const*/ Point) As BOOL
        Return IsVisible(pt.X, pt.Y)
    End Function

    Const Function IsVisible(x As Long, y As Long, width As Long, height As Long) As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsVisibleRectI(nativeGraphics, x, y, width, height, b))
        Return b
    End Function

    Const Function IsVisible(rc As /*Const*/ Rectangle) As BOOL
        Return IsVisible(rc.X, rc.Y, rc.Width, rc.Height)
    End Function

    Const Function IsVisible(x As Single, y As Single) As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsVisiblePoint(nativeGraphics, x, y, b))
        Return b
    End Function

    Const Function IsVisible(point As /*Const*/ PointF) As BOOL
        Return IsVisible(pt.X, pt.Y)
    End Function

    Const Function IsVisible(x As Single, y As Single, width As Single, height As Single) As BOOL
        Dim b = FALSE As BOOL
        SetStatus(GdipIsVisibleRect(nativeGraphics, x, y, width, height, b))
        Return b
    End Function

    Const Function IsVisible(rect As /*Const*/ RectangleF) As BOOL
        Return IsVisible(rc.X, rc.Y, rc.Width, rc.Height)
    End Function

    Const Function Save() As GraphicsState
        Dim gstate As GraphicsState
        SetStatus(GdipSaveGraphics(nativeGraphics, state))
        Return gstate
    End Function

    Function Restore(gstate As GraphicsState)
        Return SetStatus(GdipRestoreGraphics(nativeGraphics, gstate))
    End Function

    Function BeginContainer(dstrect As /*Const*/ RectangleF, srcrect As /*Const*/ RectangleF, unit As GraphicsUnit) As GraphicsContainer
        Dim state As GraphicsContainer
        SetStatus(GdipBeginContainer(nativeGraphics, dstrect, srcrect, unit, state))
        Return state
    End Function

    Function BeginContainer(dstrect As /*Const*/ Rectangle, srcrect As /*Const*/ Rectangle, unit As GraphicsUnit) As GraphicsContainer
        Dim state As GraphicsContainer
        SetStatus(GdipBeginContainerI(nativeGraphics, dstrect, srcrect, unit, state))
        Return state
    End Function

    Function BeginContainer() As GraphicsContainer
        Dim state As GraphicsContainer
        SetStatus(GdipBeginContainer2(nativeGraphics, state))
        Return state
    End Function

    Function EndContainer(state As GraphicsContainer) As Status
        Return SetStatus(GdipEndContainer(nativeGraphics, state))
    End Function

    ' Only valid when recording metafiles.

    Function AddMetafileComment(data As /*Const*/ *Byte, sizeData As DWord)
        Return SetStatus(GdipComment(nativeGraphics, sizeData, data))
    End Function

    Static Function GetHalftonePalette() As HPALETTE
        Return GdipCreateHalftonePalette()
    End Function

    Const Function GetLastStatus() As Status
        Dim lastStatus = lastResult
        lastResult = Status.Ok
        Return lastStatus
    End Function

Private
'   Sub Graphics(gr As Graphics)
'       Debug
'   End Sub
    Sub Operator =(gr As Graphics)
        Debug
    End Sub

Protected
    Sub Graphics(graphics As *GpGraphics)
        lastResult = Status.Ok
        SetNativeGraphics(graphics)
    End Sub

    Sub SetNativeGraphics(graphics As *GpGraphics)
        This.nativeGraphics = graphics
    End Sub

    Const Function SetStatus(status As Status) As Status
        If status <> Status.Ok Then
            lastResult = status
        End If
        Return status
    End Function

    Const Function GetNativeGraphics() As *GpGraphics
        Return This.nativeGraphics
    End Function

    Function GetNativePen(pen As /*Const*/ *Pen) As *GpPen
        Return pen->nativePen
    End Function

Protected
    nativeGraphics As *GpGraphics
    lastResult As /*Mutable*/ Status
End Class