> Dear All,
> I have a window, it need to use a transparent effect png file as it's
> background, but I found that use the transparent png file as background
> image, it still can see the white backrgound color in the window, I try to
> modify the draw() function in Fl_Window.cxx, comment the following:
>
> /*
> if (damage() & ~FL_DAMAGE_CHILD) { // draw the entire thing
> draw_box(box(),0,0,w(),h(),color()); // draw box with x/y = 0
> }
> */
>
> This time can see the black background color in the window, so how can I
> set a transparent png file as background picture and I can see the content
> below the window.
That's outside the scope of fltk to do - you need compositing at the Window
Manager level tio achieve that.
SELEX Galileo Ltd
Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14
3EL
A company registered in England & Wales. Company no. 02426132
********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************
_______________________________________________
fltk mailing list
fltk@easysw.com
http://lists.easysw.com/mailman/listinfo/fltk
