The following example creates a texture brush and sets the transformation of the brush. The code then uses the transformed brush to fill a rectangle.
C++
VOID Example_RotateTransform(HDC hdc)
{
Graphics graphics(hdc);
Image image(L"HouseAndTree.Gif");
TextureBrush textureBrush(&image);
textureBrush.ScaleTransform(3, 1); // first scale
textureBrush.RotateTransform(30, MatrixOrderAppend); // then rotate
graphics.FillRectangle(&textureBrush, 0, 0, 400, 200);
}
SUB GDIP_RotateTextureTransform (BYVAL hdc AS DWORD)
LOCAL hStatus AS LONG
LOCAL pGraphics AS DWORD
LOCAL pImage AS DWORD
LOCAL pTextureBrush AS DWORD
LOCAL strFileName AS STRING
hStatus = GdipCreateFromHDC(hdc, pGraphics)
strFileName = UCODE$("HouseAndTree.gif")
hStatus = GdipLoadImageFromFile(STRPTR(strFileName), pImage)
hStatus = GdipCreateTexture(pImage, %WrapModeTile, pTextureBrush)
hStatus = GdipScaleTextureTransform(pTextureBrush, 3, 1, %MatrixOrderPrepend) ' first scale
hStatus = GdipRotateTextureTransform(pTextureBrush, 30, %MatrixOrderAppend) ' then rotate
hStatus = GdipFillRectangleI(pGraphics, pTextureBrush, 0, 0, 400, 200)
' // Cleanup
IF pImage THEN GdipDisposeImage(pImage)
IF pTextureBrush THEN GdipDeleteBrush(pTextureBrush)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
END SUB
The following illustration shows the output of the preceding code.
(http://www.jose.it-berater.org/captures/GdipRotateTextureTransform.png)