Resample oder Resize mit GDI+

[EWeiss]

Du mußt graphics vorher neu erstellen
und dann kenn ich nur GdipDrawImageRectRectI

Sample!

Delphi-Quellcode:

    if GdipCreateFromHDC(hDCdest, Graphics) = 0 then
    begin
      GdipCreateBitmapFromHBITMAP(hBM2, 0, Pointer(Img));
      GdipSetInterpolationMode(Graphics, 2);
      GdipDrawImageRectRectI(Graphics, Img, xDest, yDest,
        xWidth, yHeight, 0, 0, xDiv, yDiv, 2, nil, False, nil);
      GdipDeleteGraphics(Graphics);
      GdipDisposeImage(Img);
    end;
    skDeleteObject(hBM2);
    DeleteDC(hDC2);

EDIT:
Definition von GdipDrawImageRectRectI ist..
GdipDrawImageRectRectI Graphics, Img, 0, 0, newwidth, newheight, 0, 0, origwidth, origheight, UnitPixel


gruss