Function Reference


_GDIPlus_GraphicsGetCompositingQuality

Gets the compositing quality currently set for a Graphics object

#include <GDIPlus.au3>
_GDIPlus_GraphicsGetCompositingQuality ( $hGraphics )

Parameters

$hGraphics Pointer to a Graphics object

Return Value

Success: the compositing quality:
        $GDIP_COMPOSITINGQUALITY_DEFAULT (0) - Gamma correction is not applied.
        $GDIP_COMPOSITINGQUALITY_HIGHSPEED (1) - Gamma correction is not applied. High speed, low quality.
        $GDIP_COMPOSITINGQUALITY_HIGHQUALITY (2) - Gamma correction is applied. Composition of high quality and speed.
        $GDIP_COMPOSITINGQUALITY_GAMMACORRECTED (3) - Gamma correction is applied.
        $GDIP_COMPOSITINGQUALITY_ASSUMELINEAR (4) - Gamma correction is not applied. Linear values are used.
Failure: -1 and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3).

Related

_GDIPlus_GraphicsSetCompositingQuality

See Also

Search GdipGetCompositingQuality in MSDN Library.

Example

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

Example()

Func Example()
        Local $hGUI, $hGraphic, $hBrush, $iQuality1, $iQuality2, $hMatrix

        ; Create GUI
        $hGUI = GUICreate("GDI+", 800, 400)
        GUISetState(@SW_SHOW)

        _GDIPlus_Startup()
        $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;Create a graphics object from a window handle
        _GDIPlus_GraphicsSetSmoothingMode($hGraphic, $GDIP_SMOOTHINGMODE_HIGHQUALITY)
        _GDIPlus_GraphicsClear($hGraphic, 0xFF6600AA)

        Local $hPath = _GDIPlus_PathCreate()
        _GDIPlus_PathAddEllipse($hPath, 10, 10, 380, 360)

        $hBrush = _GDIPlus_PathBrushCreateFromPath($hPath)
        _GDIPlus_PathBrushSetCenterColor($hBrush, 0xFFFFFFFF)
        _GDIPlus_PathBrushSetSurroundColor($hBrush, 0)
        _GDIPlus_PathBrushSetSigmaBlend($hBrush, 1)
        _GDIPlus_PathBrushSetFocusScales($hBrush, 0.7, 0.7)
        _GDIPlus_GraphicsFillPath($hGraphic, $hPath, $hBrush)

        $iQuality1 = _GDIPlus_GraphicsGetCompositingQuality($hGraphic)
        ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $iQuality1 = ' & $iQuality1 & @CRLF & '>Error code: ' & @error & '    Extended code: ' & @extended & ' (0x' & Hex(@extended) & ')' & @CRLF) ;### Debug Console

        $hMatrix = _GDIPlus_MatrixCreate()
        _GDIPlus_MatrixTranslate($hMatrix, 400, 0)
        _GDIPlus_PathTransform($hPath, $hMatrix)
        _GDIPlus_PathBrushSetTransform($hBrush, $hMatrix)

        Local $iRet = _GDIPlus_GraphicsSetCompositingQuality($hGraphic, $GDIP_COMPOSITINGQUALITY_GAMMACORRECTED)
        ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $iRet = ' & $iRet & @CRLF & '>Error code: ' & @error & '    Extended code: ' & @extended & ' (0x' & Hex(@extended) & ')' & @CRLF) ;### Debug Console
        _GDIPlus_GraphicsFillPath($hGraphic, $hPath, $hBrush)
        $iQuality2 = _GDIPlus_GraphicsGetCompositingQuality($hGraphic)
        ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $iQuality2 = ' & $iQuality2 & @CRLF & '>Error code: ' & @error & '    Extended code: ' & @extended & ' (0x' & Hex(@extended) & ')' & @CRLF) ;### Debug Console

        _GDIPlus_GraphicsDrawString($hGraphic, "CompositingQuality = " & $iQuality1, 10, 380)
        _GDIPlus_GraphicsDrawString($hGraphic, "CompositingQuality = " & $iQuality2, 420, 380)

        ; Loop until the user exits.
        Do
        Until GUIGetMsg() = $GUI_EVENT_CLOSE

        ; Clean up resources
        _GDIPlus_MatrixDispose($hMatrix)
        _GDIPlus_PathDispose($hPath)
        _GDIPlus_BrushDispose($hBrush)
        _GDIPlus_GraphicsDispose($hGraphic)
        _GDIPlus_Shutdown()
EndFunc   ;==>Example