Function Reference


_GDIPlus_RegionCreate

Creates a region that is infinite

#include <GDIPlus.au3>
_GDIPlus_RegionCreate ( )

Return Value

Success: a pointer to a new Region object.
Failure: 0 and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPID_ERR*).

Remarks

After you are done with the object, call _GDIPlus_RegionDispose() to release the object resources.

Related

_GDIPlus_RegionDispose

See Also

Search GdipCreateRegion in MSDN Library.

Example

#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <ScreenCapture.au3>

Example()

Func Example()
    Local $hBMP = _ScreenCapture_Capture()

    Local $hGUI = GUICreate("GDI+", 400, 400)
    GUISetState(@SW_SHOW)

    _GDIPlus_Startup()
    Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;Create a graphics object from a window handle
    Local $hBmp_Buffer = _GDIPlus_BitmapCreateFromGraphics(400, 400, $hGraphics)
    Local $hGfx_Buffer = _GDIPlus_ImageGetGraphicsContext($hBmp_Buffer)

    Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hBMP)

    Local $hMatrix1 = _GDIPlus_MatrixCreate()
    _GDIPlus_MatrixTranslate($hMatrix1, 200, 200)
    Local $hMatrix2 = _GDIPlus_MatrixCreate()
    _GDIPlus_MatrixTranslate($hMatrix2, 200, 200)

    Local $hPath = _GDIPlus_PathCreate()
    For $i = 0 To 300 Step 24
        _GDIPlus_PathAddEllipse($hPath, -$i, -$i, $i * 2, $i * 2)
    Next

    Local $hRegion = _GDIPlus_RegionCreate()
    _GDIPlus_RegionCombinePath($hRegion, $hPath, 4)

    Local $hTimer = TimerInit()
    ; Loop until the user exits.
    Do
        If TimerDiff($hTimer) > 20 Then
            _GDIPlus_GraphicsResetClip($hGfx_Buffer)
            _GDIPlus_GraphicsClear($hGfx_Buffer, 0x33FFAA00)

            _GDIPlus_MatrixRotate($hMatrix1, 1)
            _GDIPlus_MatrixRotate($hMatrix2, -1)

            _GDIPlus_GraphicsSetTransform($hGfx_Buffer, $hMatrix1)
            _GDIPlus_GraphicsSetClipRegion($hGfx_Buffer, $hRegion)
            _GDIPlus_GraphicsDrawImage($hGfx_Buffer, $hBitmap, -300, -300)

            _GDIPlus_GraphicsSetTransform($hGfx_Buffer, $hMatrix2)
            _GDIPlus_GraphicsSetClipPath($hGfx_Buffer, $hPath)
            _GDIPlus_GraphicsDrawImage($hGfx_Buffer, $hBitmap, -300, -300)

            _GDIPlus_GraphicsDrawImage($hGraphics, $hBmp_Buffer, 0, 0)
            $hTimer = TimerInit()
        EndIf
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    ; Clean up resources
    _GDIPlus_RegionDispose($hRegion)
    _GDIPlus_PathDispose($hPath)
    _GDIPlus_MatrixDispose($hMatrix1)
    _GDIPlus_MatrixDispose($hMatrix2)
    _GDIPlus_BitmapDispose($hBitmap)
    _WinAPI_DeleteObject($hBMP)
    _GDIPlus_GraphicsDispose($hGfx_Buffer)
    _GDIPlus_BitmapDispose($hBmp_Buffer)
    _GDIPlus_GraphicsDispose($hGraphics)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example