source: Include/windows/WindowHandle.sbp@ 245

' Windows/WindowHandle.sbp

#ifndef __WINDOWS_WINDOWHANDLE_SBP__
#define __WINDOWS_WINDOWHANDLE_SBP__

#ifdef _WIN64
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_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) 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) 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_GetClientRect Lib "user32" Alias "GetClientRect" (hWnd As HWND, ByRef Rect As RECT) As BOOL

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

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

    Sub WindowHandle(wnd As WindowHandle)
        hwnd = wnd.hwnd
    End Sub

    Sub Operator =(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

    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

    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

    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, hegiht) 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 GetClassLongPtr(hwnd, index)
    End Function

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

    Const Function GetClientRect(ByRef rc As RECT) As Boolean
        Return _System_GetClientRect(hwnd, rc) As Boolean
    End Function

    Const Function GetContextHelpId() As DWord
        Return GetWindowContextHelpId(hwnd)
    End Function

    Function GetDC() As HDC
        Return GetDC(hwnd)
    End Function

    Function GetDCEx(hrgnClip As HRGN, flags As DWord) As HDC
        Return 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
        Dim w As WindowHandle(_System_GetParent(hwnd))
        Return w
    End Function

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

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

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

    Const Function GetScrollInfo(fnBar As Long, ByRef si As SCROLLINFO) As Boolean
        Return 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 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 GetWindowRect(ByRef rc As RECT) As Boolean
        Return _System_GetWindowRect(rc) As Boolean
    End Function

    Const Function GetText(ps As PTSTR, maxCount As Long) As Boolean
        Return GetWindowText(ps, maxCount) As Boolean
    End Function

    Const Function GetTextLength() As Long
        Return GetWindowTextLength(hwnd)
    End Function

    Const Function GetWindowThreadId() As DWord
        Return GetWindowProcessThreadId(hwnd, 0)
    End Function

    Const Function GetWindowProcessThreadId(ByRef processId As DWord) As DWord
        Return GetWindowProcessThreadId(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, repeaint 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 PostMessage(hwnd, msg, wp, lp) As Boolean
    End Function

    Function PostMessage(msg As DWord) As Boolean
        Return 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 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 SendDlgItemMessage(hwnd, idDlgItem, wp, lp)
    End Function

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

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

    Function SendMessage(msg As DWord) As LRESULT
        Return 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 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 SetProp(str As String, hData As HANDLE) As Boolean
        Return SetProp(hwnd, ToTCStr(str), hData) As Boolean
    End Function

    Function SetProp(psz As PCTSTR, hData As HANDLE) As Boolean
        Return SetProp(hwnd, psz, hData) As Boolean
    End Function

    Function SetProp(atom As ATOM, hData As HANDLE) As Boolean
        Return SetProp(atom As ULONG_PTR As PCTSTR, hData) As Boolean
    End Function

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

    Function SetScrollInfo(fnBar As Long, ByRef si As SCROLLINFO) As Boolean
        Return 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 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 SetText(psz As PCTSTR) As Boolean
        Return SetWindowText(hwnd, psz) As Boolean
    End Function

    Function SetText(str As String) As Boolean
        Return SetWindowText(hwnd, ToTCStr(str)) 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

    ' Get/SetWindowLongPtr Wrappers

    Const Function GetExStyle() As DWord
        Return _System_GetWindowLongPtr(hwnd, GWL_EXSTYLE) As DWord
    End Function

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

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

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

    Const Function GetUserData() As LONG_PTR
        Return _System_GetWindowLongPtr(hwnd, GWLP_USERDATA)
    End Function

    Function SetExStyle(style As DWord) As DWord
        Return _System_SetWindowLongPtr(hwnd, GWL_EXSTYLE, style) As DWord
    End Function

    Function SetStyle(style As DWord) As DWord
        Return _System_SetWindowLongPtr(hwnd, GWL_STYLE, style) As DWord
    End Function

    Function SetWndProc(wndProc As WNDPROC) As WNDPROC
        Return _System_SetWindowLongPtR(hwnd, GWLP_WNDPROC, wndProc As WNDPROC) As WNDPROC
    End Function

    Function SetUserData(value As LONG_PTR) As LONG_PTR
        Return _System_SetWindowLongPtr(value As LONG_PTR)
    End Function

    ' Propaties

    Const Function ClientRect() As RECT
        Dim rc As RECT
        _System_GetClientRect(hwnd, rc)
        Return rc
    End Function

    Sub ClientRect(ByRef rc As RECT)
        Dim hasMenu As BOOL
        If IsChild() = False And IsMenu() <> False Then
            hasMenu = TRUE
        Else
            hasMenu = FALSE
        End If
        AdjustWindowRectEx(rc, GetStyle(), hasMenu, GetExStyle())
        MoveWindow(rc) ' WindowRect = rc
    End Sub

    Const Function WindowRect() As RECT
        Dim rc As RECT
        _System_GetWindowRect(hwnd, rc)
        Return rc
    End Function

    Sub WindowRect(ByRef rc As RECT)
        MoveWindow(rc)
    End Sub

    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

    Const Function ExStyle() As DWord
        Return _System_GetWindowLongPtr(hwnd, GWL_EXSTYLE) As DWord
    End Function

    Sub ExStyle(newExStyle As DWord)
        _System_SetWindowLongPtr(hwnd, GWLP_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, GWLP_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 SendMessage(hwnd, WM_GETFONT, 0, 0) As HFONT
    End Function

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

    Const Function Maximized() As Boolean
        Return IsIconic(hwnd) 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 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
        GetWindowProcessThreadId(ProcessID)
    End Function

    Const Function ThreadID() As DWord
        Return GetWindowProcessThreadId(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(str)
    End Function

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

    Const Function Prop(atom As ATOM) As HANDLE
        Return GetProp(atom)
    End Function

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

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

    Const Function Text() As String
        Dim size = GetWindowTextLength(hwnd) + 1
        Dim p = _System_malloc(SizeOf (TCHAR) * size) As PTSTR
        Dim length = GetWindowText(hwnd, p, size)
        Return New String(p, length As SIZE_T)
    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

    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

    Const Function Visible() As Boolean
        Return IsVisible(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

    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

Protected
    Sub SetHWnd(hwndNew As HWND)
        hwnd = hwndNew
    End Sub
End Class

#endif '__WINDOWS_WINDOWHANDLE_SBP__