Hi,
"Germano Rizzo" <[EMAIL PROTECTED]> writes:
> In my program I use gdk-pixbuf; actually I'm using some bitmaps, loaded
> from the alpha channel of some PNG files. Now, I'd have to do three things:
> - have the possibility to 'negative-image' them; now I'm using two different
> files for a bitmap and its negative... I guess there should be a way!!
> - have the possibility to merge two of them (e.g copying one into another
> one, then 'painting' the white areas of another into it)
You can compose the bitmaps using gdk_draw_pixmap(). By setting the GC
you can choose between different modes like GDK_INVERT, GDK_OR, GDK_AND,
...
Salut, Sven
_______________________________________________
gtk-list mailing list
[EMAIL PROTECTED]
http://mail.gnome.org/mailman/listinfo/gtk-list
