Re: gtk_widget_shape_combine_mask and gdk_window_set_child_shapes

[Andrew Shafer <shafer realmsys com>]

Any one?  Any one?  Bueller?

On Sun, 2005-11-27 at 16:57 -0700, Andrew Shafer wrote:
> Anyone have experience using gdk_window_set_child_shapes?  or
> (merge_child_shapes)
> 
> I don't really understand how it works.
> 
> The effect I want is to have a top level window without decorations that
> appears to have a few sections (normal gtk widgets) that appear to float
> around together.
> 
> I apply gtk_widget_shape_combine_mask to the different and they look
> good in the layout.  
> 
> I was hoping I could then call gdk_window_set_child_shapes is the gdk
> window of the top level and everything would be great, but instead this
> makes everything disappear.  
> 
> The application is running and if I run xwininfo, all the children
> windows exist and have the proper dimension, but nothing appears on
> screen.  Further, if I iconify/deiconify (under Gnome) I see an outline
> collapse into the taskbar. 
> 
> If I call gdk_window_set_child_shapes the behavior is also strange, now
> the main window draws with a truncated rectangular version that cuts off
> across the other sections.  (xwininfo says the children still have their
> original dimension)
> 
> If I compose a bitmap mask of the exact dimension and placement of all
> the widgets, then I can call gtk_widget_shape_combine_mask on the
> toplevel and get the desired behavior.  I want to avoid doing this
> because it would be a royal pain to update the mask for any little
> change.
> 
> Any suggestions, ideas, or experience will be welcomed  :)
> 
> Regards,
> 
> Andrew Shafer      
>     
> 
> 
> 
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