source: trunk/ab5.0/ablib/src/Classes/ActiveBasic/Windows/UI/WindowHandle.sbp@ 547

'Classes/ActiveBasic/Windows/UI/WindowHandle.sbp

#ifdef _WIN64
Declare Function _System_GetClassLongPtr Lib "user32" Alias _FuncName_GetClassLongPtr (hWnd As HWND, nIndex As Long) As LONG_PTR
Declare Function _System_SetClassLongPtr Lib "user32" Alias _FuncName_SetClassLongPtr (hWnd As HWND, nIndex As Long, l As LONG_PTR) As LONG_PTR
Declare Function _System_GetWindowLongPtr Lib "user32" Alias _FuncName_GetWindowLongPtr (hWnd As HWND, nIndex As Long) As LONG_PTR
Declare Function _System_SetWindowLongPtr Lib "user32" Alias _FuncName_SetWindowLongPtr (hWnd As HWND, nIndex As Long, l As LONG_PTR) As LONG_PTR
#else
Declare Function _System_GetClassLongPtr Lib "user32" Alias _FuncName_GetClassLong (hWnd As HWND, nIndex As Long) As LONG_PTR
Declare Function _System_SetClassLongPtr Lib "user32" Alias _FuncName_SetClassLong (hWnd As HWND, nIndex As Long, l As LONG_PTR) As LONG_PTR
Declare Function _System_GetWindowLongPtr Lib "user32" Alias _FuncName_GetWindowLong (hWnd As HWND, nIndex As Long) As LONG_PTR
Declare Function _System_SetWindowLongPtr Lib "user32" Alias _FuncName_SetWindowLong (hWnd As HWND, nIndex As Long, l As LONG_PTR) As LONG_PTR
#endif
Declare Function _System_GetParent Lib "user32" Alias "GetParent" (hWnd As HWND) As HWND
Declare Function _System_SetParent Lib "user32" Alias "SetParent" (hWnd As HWND, hwndParent As HWND) As HWND
Declare Function _System_GetMenu Lib "user32" Alias "GetMenu" (hWnd As HWND) As HMENU
Declare Function _System_SetMenu Lib "user32" Alias "SetMenu" (hWnd As HWND, hmenu As HMENU) As HMENU
Declare Function _System_InvalidateRect Lib "user32" Alias "InvalidateRect" (hWnd As HWND, ByRef Rect As RECT, bErase As BOOL) As BOOL
Declare Function _System_InvalidateRgn Lib "user32" Alias "InvalidateRgn" (hWnd As HWND, hRgn As HRGN, bErase As BOOL) As BOOL
Declare Function _System_ValidateRect Lib "user32" Alias "ValidateRect" (hWnd As HWND, ByRef Rect As RECT) As BOOL
Declare Function _System_ValidateRgn Lib "user32" Alias "ValidateRgn" (hWnd As HWND, hRgn As HRGN) As BOOL
Declare Function _System_BeginPaint Lib "user32" Alias "BeginPaint" (hWnd As HWND, ByRef ps As PAINTSTRUCT) As HDC
Declare Function _System_EndPaint Lib "user32" Alias "EndPaint" (hWnd As HWND, ByRef ps As PAINTSTRUCT) As HDC
Declare Function _System_ClientToScreen Lib "user32" Alias "ClientToScreen" (hWnd As HWND, ByRef Point As POINTAPI) As BOOL
Declare Function _System_ScreenToClient Lib "user32" Alias "ScreenToClient" (hWnd As HWND, ByRef Point As POINTAPI) As BOOL
Declare Function _System_CreateCaret Lib "user32" Alias "CreateCaret" (hWnd As HWND, hBitmap As HBITMAP, nWidth As Long, nHeight As Long) As BOOL
Declare Function _System_HideCaret Lib "user32" Alias "HideCaret" (hWnd As HWND) As BOOL
Declare Function _System_ShowCaret Lib "user32" Alias "ShowCaret" (hWnd As HWND) As BOOL
Declare Function _System_DrawMenuBar Lib "user32" Alias "DrawMenuBar" (hwnd As HWND) As BOOL
Declare Function _System_GetWindowRect Lib "user32" Alias "DrawMenuBar" (hWnd As HWND, ByRef Rect As RECT) As BOOL
Declare Function _System_IsWindow Lib "user32" Alias "IsWindow" (hWnd As HWND) As BOOL
Declare Function _System_IsIconic Lib "user32" Alias "IsIconic" (hWnd As HWND) As BOOL
Declare Function _System_GetClassName Lib "user32" Alias _FuncName_GetClassName (hWnd As HWND, lpClassName As PTSTR, nMaxCount As Long) As Long
Declare Function _System_GetScrollInfo Lib "user32" Alias "GetScrollInfo" (hWnd As HWND, fnBar As Long, ByRef lpsi As SCROLLINFO) As BOOL
Declare Function _System_SetScrollInfo Lib "user32" Alias "SetScrollInfo" (hWnd As HWND, fnBar As Long, ByRef lpsi As SCROLLINFO, bRedraw As Long) As BOOL
Declare Function _System_GetSystemMenu Lib "user32" Alias "GetSystemMenu" (hWnd As HWND, bRevert As BOOL) As HMENU
Declare Function _System_GetDC Lib "user32" Alias "GetDC" (hwnd As HWND) As HDC
Declare Function _System_GetDCEx Lib "user32" Alias "GetDCEx" (hwnd As HWND, hrgnClip As HRGN, flags As DWord) As HDC
Declare Function _System_GetWindowDC Lib "user32" Alias "GetWindowDC" (hwnd As HWND) As HDC
Declare Function _System_ReleaseDC Lib "user32" Alias "ReleaseDC" (hwnd As HWND, hdc As HDC) As BOOL
Declare Function _System_SendMessage Lib "user32" Alias _FuncName_SendMessage (hwnd As HWND, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
Declare Function _System_PostMessage Lib "user32" Alias _FuncName_PostMessage (hwnd As HWND, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
Declare Function _System_SendDlgItemMessage Lib "user32" Alias _FuncName_SendDlgItemMessage (hwnd As HWND, id As DWord, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
Declare Function _System_GetWindowThreadProcessId Lib "user32" Alias "GetWindowThreadProcessId" (hwnd As HWND, pdwProcessId As *DWord) As DWord

Namespace ActiveBasic
Namespace Windows
Namespace UI

Class WindowHandle
    hwnd As HWND
Public
    Sub WindowHandle()
        hwnd = 0
    End Sub

    Sub WindowHandle(hwndNew As HWND)
        hwnd = hwndNew
    End Sub

    Const Function HWnd() As HWND
        Return hwnd
    End Function

    Const Function Operator() As HWND
        Return hwnd
    End Function
/*
    Static Function FromHWnd(hwnd As HWND) As WindowHandle
        FromHWnd = Control.FromHWnd(hwnd)
        If IsNothing(FromHWnd) Then
            FromHWnd = New WindowHandle(hwnd)
        End If
    End Function
*/
    Function BringToTop() As Boolean
        Return BringWindowToTop(hwnd) As Boolean
    End Function

    Function BeginPaint(ByRef ps As PAINTSTRUCT) As HDC
        Return _System_BeginPaint(hwnd, ps)
    End Function

    Function BeginPaint() As PAINTSTRUCT
        _System_BeginPaint(hwnd, BeginPaint)
    End Function
/*
    Const Function ChildFromPoint(x As Long, y As Long) As WindowHandle
        Return New WindowHandle(ChildWindowFromPoint(hwnd, x, y))
    End Function

    Const Function ChildFromPointEx(x As Long, y As Long, flags As DWord) As WindowHandle
        Return New WindowHandle(ChildWindowFromPointEx(hwnd, x, y, flags))
    End Function
*/
    Const Function ClientToScreen(ByRef pt As POINTAPI) As Boolean
        Return _System_ClientToScreen(hwnd, pt) As Boolean
    End Function

    Const Function ClientToScreen(ByRef rc As RECT) As Boolean
        Dim ppt = VarPtr(rc) As *POINTAPI
        Return (_System_ClientToScreen(hwnd, ppt[0]) <> FALSE And _System_ClientToScreen(hwnd, ppt[1]) <> FALSE) As Boolean
    End Function

    Function Close() As Boolean
        Return CloseWindow(hwnd) As Boolean
    End Function

    Function CreateCaret(hbmp As HBITMAP, width As Long, height As Long) As Boolean
        Return _System_CreateCaret(hwnd, hbmp, width, height) As Boolean
    End Function

    Function Destroy() As Boolean
        Return DestroyWindow(hwnd) As Boolean
    End Function

    Function DrawMenuBar() As Boolean
        Return _System_DrawMenuBar(hwnd) As Boolean
    End Function
/*
    Function EnableScrollBar(SBFlags As DWord, arrows As DWord) As Boolean
        Return EnableScrollBar(hwnd, SBFlags, arrows) As Boolean
    End Function
*/
    Function Enable(enable As Boolean) As Boolean
        Return EnableWindow(hwnd, enable) As Boolean
    End Function

    Function EndPaint(ByRef ps As PAINTSTRUCT) As Boolean
        Return _System_EndPaint(hwnd, ps) As Boolean
    End Function

    Const Function EnumChilds(enumFunc As WNDENUMPROC, lp As LPARAM) As Boolean
        Return EnumChildWindows(hwnd, enumFunc, lp) As Boolean
    End Function

    Function Flash(invert As Boolean) As Boolean
        Return FlashWindow(hwnd, invert) As Boolean
    End Function

    Const Function GetClassLongPtr(index As Long) As LONG_PTR
        Return _System_GetClassLongPtr(hwnd, index)
    End Function

    Const Function GetClassName(className As PTSTR, maxCount As Long) As Long
        Return _System_GetClassName(hwnd, className, maxCount)
    End Function

/*
    Const Function GetContextHelpId() As DWord
        Return GetWindowContextHelpId(hwnd)
    End Function
*/
    Function GetDC() As HDC
        Return _System_GetDC(hwnd)
    End Function

    Function GetDCEx(hrgnClip As HRGN, flags As DWord) As HDC
        Return _System_GetDCEx(hwnd, hrgnClip, flags)
    End Function
/*
    Const Function GetDlgCtrlID() As Long
        Return GetDlgCtrlID(hwnd)
    End Function

    Const Function GetDlgItem(idDlgItem As Long) As WindowHandle
        Return GetDlgItem(hwnd, idDlgItem)
    End Function

    Const Function GetDlgItemText(idDlgItem As Long, ps As PTSTR, maxCount As Long) As Long
        Return GetDlgItemText(hwnd, idDlgItem, ps, maxCount)
    End Function
*/
    Const Function GetMenu() As HMENU
        Return _System_GetMenu(hwnd)
    End Function
/*
    Const Function GetParent() As WindowHandle
        Return New WindowHandle(_System_GetParent(hwnd))
    End Function
*/
    Const Function GetScrollInfo(fnBar As Long, ByRef si As SCROLLINFO) As Boolean
        Return _System_GetScrollInfo(hwnd, fnBar, si) As Boolean
    End Function
/*
    Const Function GetSystemMenu(revert As Boolean) As HMENU
        Return GetSystemMenu(hwnd, revert)
    End Function

    Const Function GetUpdateRect(ByRef rc As RECT, erase As Boolean) As Boolean
        Return GetUpdateRact(hwnd, rc, erase) As Boolean
    End Function

    Const Function GetUpdateRgn(hrgn As HRGN, erase As Boolean) As Boolean
        Return GetUpdateRgn(hwnd, hrgn, erase) As Boolean
    End Function

    Const Function GetWindow(cmd As DWord) As WindowHandle
        Return GetWindow(hwnd, cmd)
    End Function
*/
    Function GetWindowDC() As HDC
        Return _System_GetWindowDC(hwnd)
    End Function

    Const Function GetWindowLongPtr(index As Long) As LONG_PTR
        Return _System_GetWindowLongPtr(hwnd, index)
    End Function
/*
    Const Function GetWindowPlasement(ByRef wndpl As WINDOWPLACEMENT) As Boolean
        Return GetWindowPlasement(hwnd, wndpl) As Boolean
    End Function
*/
    Const Function GetText(ps As PTSTR, maxCount As Long) As Boolean
        Return GetWindowText(hwnd, ps, maxCount) As Boolean
    End Function

    Const Function GetWindowThreadProcessId(ByRef processId As DWord) As DWord
        Return _System_GetWindowThreadProcessId(hwnd, VarPtr(processId))
    End Function

    Function HideCaret() As Boolean
        Return _System_HideCaret(hwnd) As Boolean
    End Function

    Function InvalidateRect(ByRef rc As RECT, erace As Boolean) As Boolean
        Return _System_InvalidateRect(hwnd, rc, erace) As Boolean
    End Function

    Function InvalidateRect(ByRef rc As RECT) As Boolean
        Return _System_InvalidateRect(hwnd, rc, TRUE) As Boolean
    End Function

    Function InvalidateRgn(hrgn As HRGN, erace As Boolean) As Boolean
        Return _System_InvalidateRgn(hwnd, hrgn, erace) As Boolean
    End Function

    Function InvalidateRgn(hrgn As HRGN) As Boolean
        Return _System_InvalidateRgn(hwnd, hrgn, TRUE) As Boolean
    End Function

    Function Invalidate(erace As Boolean) As Boolean
        Return _System_InvalidateRect(hwnd, ByVal 0, erace) As Boolean
    End Function

    Function Invalidate() As Boolean
        Return _System_InvalidateRect(hwnd, ByVal 0, TRUE) As Boolean
    End Function
/*
    Const Function IsChild(hwnd As HWND) As Boolean
        Return IsChild(This.hwnd, hwnd) As Boolean
    End Function

    Const Function IsDialogMessage(ByRef msg As MSG) As Boolean
        Return IsDialogMessage(hwnd, msg) As Boolean
    End Function
*/
    Const Function IsIconic() As Boolean
        Return _System_IsIconic(hwnd) As Boolean
    End Function

    Const Function IsWindow() As Boolean
        Return _System_IsWindow(hwnd) As Boolean
    End Function

    Const Function IsEnabled() As Boolean
        Return IsWindowEnabled(hwnd) As Boolean
    End Function

    Const Function IsUnicode() As Boolean
        Return IsWindowUnicode(hwnd) As Boolean
    End Function

    Const Function IsVisible() As Boolean
        Return IsWindowVisible(hwnd) As Boolean
    End Function
/*
    Const Function IsZoomed() As Boolean
        Return IsZoomed(hwnd) As Boolean
    End Function

    Function KillTimer(idEvent As ULONG_PTR) As Boolean
        Return KillTimer(idEvent) As Boolean
    End Function
*/
    Function LockUpdate() As Boolean
        Return LockWindowUpdate(hwnd) As Boolean
    End Function
/*
    Function MapPoints(hwndTo As HWND, pPoints As *POINTAPI, cPoints As DWord) As Long
        Return MapWindowPoints(hwnd, hwndTo, pPoints, cPoints)
    End Function

    Function MapPoints(hwndTo As HWND, ByRef rc As RECT) As Long
        Return MapWindowPoints(hwnd, hwndTo, VarPtr(rc) As *POINTAPI, 2)
    End Function

    Const Function MessageBox(text As PCTSTR, caption As PCTSTR, uType As DWord) As Long
        Return MessageBox(hwnd, text, caption, uType)
    End Function

    Const Function MessageBox(text As PCTSTR, caption As PCTSTR) As Long
        Return MessageBox(hwnd, text, caption, MB_OK)
    End Function

    Const Function MessageBox(text As PCTSTR) As Long
        Return MessageBox(hwnd, text, 0, MB_OK)
    End Function
*/
    Function Move(x As Long, y As Long, width As Long, height As Long, repaint As Boolean) As Boolean
        Return MoveWindow(hwnd, x, y, width, height, repaint) As Boolean
    End Function

    Function Move(x As Long, y As Long, width As Long, height As Long) As Boolean
        Return MoveWindow(hwnd, x, y, width, height, TRUE) As Boolean
    End Function

    Function Move(ByRef rc As RECT, repaint As Boolean) As Boolean
        With rc
            Return MoveWindow(hwnd, .left, .top, .right - .left, .bottom - .top, repaint) As Boolean
        End With
    End Function

    Function Move(ByRef rc As RECT) As Boolean
        With rc
            Return MoveWindow(hwnd, .left, .top, .right - .left, .bottom - .top, TRUE) As Boolean
        End With
    End Function
/*
    Function OpenClipboard() As Boolean
        Return OpenClipboard(hwnd) As Boolean
    End Function

    Function OpenIcon() As Boolean
        Return OpenIcon(hwnd) As Boolean
    End Function
*/
    Function PostMessage(msg As DWord, wp As WPARAM, lp As LPARAM) As Boolean
        Return _System_PostMessage(hwnd, msg, wp, lp) As Boolean
    End Function

    Function PostMessage(msg As DWord) As Boolean
        Return _System_PostMessage(hwnd, msg, 0, 0) As Boolean
    End Function
/*
    Function RedrawWindow(ByRef rcUpdate As RECT, hrgnUpdate As HRGN, flags As DWord) As Boolean
        Return RedrawWindow(hwnd, rcUpdatre, hrgnUpdate, flags) As Boolean
    End Function
*/
    Function ReleaseDC(hdc As HDC) As Boolean
        Return _System_ReleaseDC(hwnd, hdc) As Boolean
    End Function
/*
    Function RemoveProp(str As String) As HANDLE
        Return RemoveProp(hwnd, ToTCStr(str))
    End Function

    Function RemoveProp(psz As PCTSTR) As HANDLE
        Return RemoveProp(hwnd, psz)
    End Function

    Function RemoveProp(atom As ATOM) As HANDLE
        Return RemoveProp(hwnd, atom As ULONG_PTR As PCTSTR)
    End Function
*/
    Const Function ScreenToClient(ByRef pt As POINTAPI) As Boolean
        Return _System_ScreenToClient(hwnd, pt) As Boolean
    End Function

    Const Function ScreenToClient(ByRef rc As RECT) As Boolean
        Dim ppt = VarPtr(rc) As *POINTAPI
        Return (_System_ScreenToClient(hwnd, ppt[0]) <> FALSE And _System_ScreenToClient(hwnd, ppt[1]) <> FALSE) As Boolean
    End Function

    Function Scroll(dx As Long, dy As Long, ByRef rcScroll As RECT, ByRef rcClip As RECT, hrgnUpdate As HRGN, ByRef rcUpdate As RECT, flags As DWord) As Boolean
        Return ScrollWindowEx(hwnd, dx, dy, rcScroll, rcClip, hrgnUpdate, rcUpdate, flags) As Boolean
    End Function

    Function SendDlgItemMessage(idDlgItem As Long, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
        Return _System_SendDlgItemMessage(hwnd, idDlgItem, msg, wp, lp)
    End Function

    Function SendDlgItemMessage(idDlgItem As Long, msg As DWord) As LRESULT
        Return _System_SendDlgItemMessage(hwnd, idDlgItem, msg, 0, 0)
    End Function

    Function SendMessage(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
        Return _System_SendMessage(hwnd, msg, wp, lp)
    End Function

    Function SendMessage(msg As DWord) As LRESULT
        Return _System_SendMessage(hwnd, msg, 0, 0)
    End Function
/*
    Function SetActiveWindow() As WindowHandle
        Return New WindowHandle(SetActiveWindow(hwnd))
    End Function

    Function SetDlgItemText(idDlgItem As Long, psz As PCTSTR) As Boolean
        Return SetDlgItemText(hwnd, idDlgItem, psz) As Boolean
    End Function

    Function SetCapture() As WindowHandle
        Return New WindowHandle(SetCapture(hwnd))
    End Function
*/
    Function SetClassLongPtr(index As Long, newLong As LONG_PTR) As LONG_PTR
        Return _System_SetClassLongPtr(hwnd, index, newLong)
    End Function
/*
    Function SetFocus() As WindowHandle
        Return New WindowHandle(SetFocus(hwnd))
    End Function
*/
    Function SetForeground() As Boolean
        Return SetForegroundWindow(hwnd) As Boolean
    End Function

    Function SetMenu(hmenu As HMENU) As Boolean
        Return _System_SetMenu(hwnd, hmenu) As Boolean
    End Function

    Function SetParent(hwndNewParent As HWND) As WindowHandle
        Return New WindowHandle(_System_SetParent(hwnd, hwndNewParent))
    End Function

    Function SetScrollInfo(fnBar As Long, ByRef si As SCROLLINFO, redraw As Boolean) As Boolean
        Return _System_SetScrollInfo(hwnd, fnBar, si, redraw) As Boolean
    End Function

    Function SetScrollInfo(fnBar As Long, ByRef si As SCROLLINFO) As Boolean
        Return _System_SetScrollInfo(hwnd, fnBar, si, TRUE) As Boolean
    End Function
/*
    Function SetTimer(idEvent As ULONG_PTR, elapse As DWord, timerFunc As TIMERPROC) As ULONG_PTR
        Return SetTmer(hwnd, idEvent, elapse, timerFunc)
    End Function

    Function SetTimer(idEvent As ULONG_PTR, elapse As DWord) As ULONG_PTR
        Return This.SetTmer(hwnd, idEvent, elapse, 0)
    End Function

    Function SetContextHelpId(contextHelpId As DWord) As Boolean
        Return SetContextHelpId(hwnd, contextHelpId) As Boolean
    End Function
*/
    Function SetWindowLongPtr(index As Long, newLong As LONG_PTR) As LONG_PTR
        Return _System_SetWindowLongPtr(hwnd, index, newLong)
    End Function
/*
    Function SetWindowPlacement(ByRef wndpl As WINDOWPLACEMENT) As Boolean
        Return SetWindowPlacement(hwnd, wndpl) As Boolean
    End Function
*/
    Function SetPos(hwndInsertAfter As HWND, x As Long, y As Long, cx As Long, cy As Long, flags As DWord) As Boolean
        Return SetWindowPos(hwnd, hwndInsertAfter, x, y, cx, cy, flags) As Boolean
    End Function

    Function SetPos(hwndInsertAfter As HWND, ByRef rc As RECT, flags As DWord) As Boolean
        With rc
            Return SetWindowPos(hwnd, hwndInsertAfter, .left, .top, .right - .left, .bottom - .top, flags) As Boolean
        End With
    End Function

    Function SetRgn(hrgn As HRGN, redraw As Boolean) As Boolean
        Return SetWindowRgn(hwnd, hrgn, redraw) As Boolean
    End Function

    Function SetRgn(hrgn As HRGN) As Boolean
        Return SetWindowRgn(hwnd, hrgn, TRUE) As Boolean
    End Function

    Function ShowCaret() As Boolean
        Return _System_ShowCaret(hwnd) As Boolean
    End Function
/*
    Function ShowScrollBar(bar As DWord, show As Boolean) As Boolean
        Return ShowScrollBar(hwnd, bar, show) As Boolean
    End Function

    Function ShowScrollBar(bar As DWord) As Boolean
        Return ShowScrollBar(hwnd, bar, TRUE) As Boolean
    End Function
*/
    Function Show(cmdShow As DWord) As Boolean
        Return ShowWindow(hwnd, cmdShow) As Boolean
    End Function

    Function ShowAsync(cmdShow As DWord) As Boolean
        Return ShowWindowAsync(hwnd, cmdShow) As Boolean
    End Function

    Function Update() As Boolean
        Return UpdateWindow(hwnd) As Boolean
    End Function

    Function ValidateRect(ByRef rc As RECT) As Boolean
        Return _System_ValidateRect(hwnd, rc) As Boolean
    End Function

    Function ValidateRgn(hrgn As HRGN) As Boolean
        Return _System_ValidateRgn(hwnd, hrgn) As Boolean
    End Function

    Function Validate() As Boolean
        Return _System_ValidateRect(hwnd, ByVal 0) As Boolean
    End Function

    ' Propaties

    Const Function ClientRect() As RECT
        GetClientRect(hwnd, ClientRect)
    End Function
#ifdef _UNDEF
    Sub ClientRect(ByRef rc As RECT)
        Dim hasMenu As BOOL
        If IsChild() = False And GetMenu() <> 0 Then
            hasMenu = TRUE
        Else
            hasMenu = FALSE
        End If
        AdjustWindowRectEx(rc, GetStyle(), hasMenu, GetExStyle())
        This.Move(rc) ' WindowRect = rc
    End Sub
#endif
    Const Function WindowRect() As RECT
        _System_GetWindowRect(hwnd, WindowRect)
    End Function

    Sub WindowRect(ByRef rc As RECT)
        This.Move(rc)
    End Sub
#ifdef _UNDEF
    Const Function ContextHelpID() As DWord
        Return GetContextHelpId(hwnd)
    End Function

    Sub ContextHelpID(newID As DWord)
        _System_SetContextHelpId(hwnd, newId)
    End Sub

    Const Function DlgCtrlID() As Long
        Return GetDlgCtrlID(hwnd)
    End Function

    Sub DlgCtrlId(newId As Long)
        _System_SetWindowLongPtr(hwnd, GWLP_ID, newId)
    End Sub

    Function DlgItem(idDlgItem As Long) As WindowHandle
        Dim w As WindowHandle(GetDlgItem(hwnd, idDlgItem))
        Return w
    End Function
#endif
    Const Function ExStyle() As DWord
        Return _System_GetWindowLongPtr(hwnd, GWL_EXSTYLE) As DWord
    End Function

    Sub ExStyle(newExStyle As DWord)
        _System_SetWindowLongPtr(hwnd, GWL_EXSTYLE, newExStyle)
    End Sub

    Const Function Style() As DWord
        Return _System_GetWindowLongPtr(hwnd, GWL_STYLE) As DWord
    End Function

    Sub Style(newStyle As DWord)
        _System_SetWindowLongPtr(hwnd, GWL_STYLE, newStyle)
    End Sub

    Const Function Enabled() As Boolean
        Return IsWindowEnabled(hwnd) As Boolean
    End Function

    Sub Enabled(enable As Boolean)
        EnableWindow(hwnd, enable)
    End Sub

    Const Function Font() As HFONT
        Return _System_SendMessage(hwnd, WM_GETFONT, 0, 0) As HFONT
    End Function

    Sub Font(hfntNew As HFONT)
        _System_SendMessage(hwnd, WM_SETFONT, hfntNew As WPARAM, TRUE)
    End Sub

    Const Function Maximized() As Boolean
        Return IsIconic() As Boolean
    End Function

    Sub Maximized(maximized As Boolean)
        If maximized <> False Then
            ShowWindow(hwnd, SW_SHOWMAXIMIZED)
        Else
            ShowWindow(hwnd, SW_RESTORE)
        End If
    End Sub

    Const Function Minimized() As Boolean
        Return _System_IsIconic(hwnd) As Boolean
    End Function

    Sub Minimized(minimized As Boolean)
        If minimized <> False Then
            CloseWindow(hwnd)
        Else
            OpenIcon(hwnd)
        End If
    End Sub

    Const Function Instance() As HINSTANCE
        Return _System_GetWindowLongPtr(hwnd, GWLP_HINSTANCE) As HINSTANCE
    End Function

    ' IsWindow, IsUnicodeはメソッドと同じ。

    Const Function Parent() As WindowHandle
        Return New WindowHandle(_System_GetParent(hwnd))
    End Function

    Sub Parent(hwndNewParent As HWND)
        _System_SetParent(hwnd, hwndNewParent)
    End Sub

    Const Function ProcessId() As DWord
        GetWindowThreadProcessId(ProcessId)
    End Function

    Const Function ThreadId() As DWord
        Return GetWindowThreadProcessId(ByVal 0)
    End Function

    Const Function Menu() As HMENU
        Return _System_GetMenu(hwnd)
    End Function

    Sub Menu(hmenuNew As HMENU)
        _System_SetMenu(hwnd, hmenuNew)
    End Sub

    Const Function Prop(str As String) As HANDLE
        Return GetProp(hwnd, ToTCStr(str))
    End Function

    Const Function Prop(psz As PCTSTR) As HANDLE
        Return GetProp(hwnd, psz)
    End Function

    Const Function Prop(atom As ATOM) As HANDLE
        Return GetProp(hwnd, atom As ULONG_PTR As PCTSTR)
    End Function

    Sub Prop(str As String, hData As HANDLE)
        SetProp(hwnd, ToTCStr(str), hData)
    End Sub

    Sub Prop(str As PCTSTR, h As HANDLE)
        SetProp(hwnd, str, h)
    End Sub

    Sub Prop(atom As ATOM, h As HANDLE)
        SetProp(hwnd, atom As ULONG_PTR As PCTSTR, h)
    End Sub

    Const Function Text() As String
        Dim size = GetWindowTextLength(hwnd) + 1
        Dim sb = New System.Text.StringBuilder(size)
        sb.Length = size
        Dim length = GetWindowText(hwnd, StrPtr(sb), size)
        Text = sb.ToString
    End Function

    Sub Text(newText As String)
        SetWindowText(hwnd, ToTCStr(newText))
    End Sub

    Sub Text(newText As PCTSTR)
        SetWindowText(hwnd, newText)
    End Sub

    Const Function TextLength() As Long
        Return GetWindowTextLength(hwnd)
    End Function
#ifdef _UNDEF
    Const Function UserData() As LONG_PTR
        Return _System_GetWindowLongPtr(hwnd, GWLP_USERDATA)
    End Function

    Sub UserData(newValue As LONG_PTR)
        _System_SetWindowLongPtr(hwnd, GWLP_USERDATA, newValue)
    End Sub
#endif
    Const Function Visible() As Boolean
        Return IsWindowVisible(hwnd) As Boolean
    End Function

    Sub Visible(visible As Boolean)
        If visible <> False Then
            ShowWindow(hwnd, SW_SHOW)
        Else
            ShowWindow(hwnd, SW_HIDE)
        EndIf
    End Sub
#ifdef _UNDEF
    Const Function WindowPlacement() As WINDOWPLACEMENT
        WindowPlacement.length = Len(WindowPlacement)
        GetWindowPlacement(hwnd, WindowPlacement)
    End Function

    Sub WindowPlacement(ByRef wndpl As WINDOWPLACEMENT)
        SetWindowPlacement(wndpl)
    End Sub

    Const Function WndProc() As WNDPROC
        Return _System_GetWindowLongPtr(hwnd, GWLP_HINSTANCE) As WNDPROC
    End Function

    Sub WndProc(newWndProc As WNDPROC)
        _System_SetWindowLongPtr(hwnd, GWLP_WNDPROC, newWndProc As LONG_PTR)
    End Sub
#endif
Protected
    Sub SetHWnd(hwndNew As HWND)
        hwnd = hwndNew
    End Sub
End Class

End Namespace 'UI
End Namespace 'Widnows
End Namespace 'ActiveBasic