Function Reference

_GDIPlus_ImageRotateFlip

Rotates and flips an image

#include <GDIPlus.au3>
_GDIPlus_ImageRotateFlip ( $hImage, $iRotateFlipType )

Parameters

$hImage Pointer to an Image object
$iRotateFlipType Type of rotation and flip:
    0 - No rotation and no flipping (A 180-degree rotation, a horizontal flip and then a vertical flip)
    1 - A 90-degree rotation without flipping (A 270-degree rotation, a horizontal flip and then a vertical flip)
    2 - A 180-degree rotation without flipping (No rotation, a horizontal flip followed by a vertical flip)
    3 - A 270-degree rotation without flipping (A 90-degree rotation, a horizontal flip and then a vertical flip)
    4 - No rotation and a horizontal flip (A 180-degree rotation followed by a vertical flip)
    5 - A 90-degree rotation followed by a horizontal flip (A 270-degree rotation followed by a vertical flip)
    6 - A 180-degree rotation followed by a horizontal flip (No rotation and a vertical flip)
    7 - A 270-degree rotation followed by a horizontal flip (A 90-degree rotation followed by a vertical flip)

Return Value

Success: True.
Failure: False and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3).

See Also

Search GdipImageRotateFlip in MSDN Library.

Example

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

Example()

Func Example()
        _GDIPlus_Startup()
        Local Const $iW = @DesktopWidth / 2, $iH = @DesktopHeight / 2

        Local $hHBmp = _ScreenCapture_Capture("", 0, 0, @DesktopWidth / 2, @DesktopHeight / 2) ;create a GDI bitmap by capturing 1/4 of desktop
        Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap
        _WinAPI_DeleteObject($hHBmp) ;release GDI bitmap resource because not needed anymore
        _GDIPlus_ImageRotateFlip($hBitmap, 1) ;rotate image by 90 degrees without flipping

        Local $hGUI = GUICreate("GDI+ test", $iH, $iW, -1, -1) ;create a test gui to display the rotated image
        GUISetState(@SW_SHOW)

        Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;create a graphics object from a window handle
        _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap, 0, 0) ;display rotated image

        While 1
                Switch GUIGetMsg()
                        Case $GUI_EVENT_CLOSE
                                ExitLoop
                EndSwitch
        WEnd

        ;cleanup resources
        _GDIPlus_GraphicsDispose($hGraphics)
        _GDIPlus_BitmapDispose($hBitmap)
        _GDIPlus_Shutdown()
        GUIDelete($hGUI)
EndFunc   ;==>Example