Graphics32 - Drawto canvas on mac
lazarus / 39-Graphics

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Flemming · 2013-02-07 17:13

Hi

In windows i can use the Bitmap32.Drawto(canvas.handle,x,y); But it's
not working on mac os x. I guess it have something to do with the
handle ? Do anybody know a way to draw direct on a components canvas
from a Tbitmap32 on mac ?

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circular · 2013-02-07 18:28

You can do this by converting the image to a TBitmap before drawing.

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Flemming · 2013-02-10 13:08

I tried with a simple canvas.draw but on mac it's not working when
drawing on a TImgView32. Made a little samplecode to test:

Code: [Select] 
var bm : TBitmap;
Begin
  bm:=TBitmap.Create;
  bm.setsize(30,30);
  bm.canvas.brush.color:=clred;
  bm.canvas.fillrect(0,0,30,30);

  image1.canvas.Draw(10,10,bm);   // Mac and Windows
  image32.canvas.Draw(10,10,bm); // Windows only
  bm.free;
end;