[news.eclipse.platform.swt] Re: GC: Working with setAlpha

[Andreas <a.rettig@xxxxxx>]

Ok, it doesn't seem to work yet:

http://www.eclipsezone.com/eclipse/forums/t93709.html


Andreas schrieb:
> It seems that I still don't understand the principle of drawing in SWT...
> I always thougt it behaves like a statemachine like OpenGL - that means 
> i I call setAlpha(100), all following operations are drawn with alpha 100.
>
> gc.setAlpha(100);
> gc.fillRectangle(0, 0, 10,10);
>
> Should draw a transparent Rectangle filled with the actual Background 
> Color, shouldn't it?
>
> But everything following gc.setAlpha() isn't drawn at all.
>
> What am I doing wrong?
> (Windows XP SP2, actual SWT Version)
>
> Thanks in advance
> Andreas