Re: See-through container

[Tristan Van Berkom <tristan van berkom gmail com>]

David E. Konerding wrote:

> Hi folks,
>
> I previously posted a question about containers; specifically, i want to
> have a layout container in which drawing
> done to the parent window "shows through" layout where nothing is placed
> on the layout.  Here's an example of what's not working for me.
> The diagonal line is obscured by the inner_layout Layout container,
> although I am setting the back_pixmap for the Layout's window and
> bin_window to NULL, which is supposed to do what I want.  Anybody have
> any suggestions?
>  

You dont need to mess with gdk_window_set_back_pixmap(), it
should be irrelevent in this context (it sets the X server with
a default background for your GdkWindow)

You should simply try doing:
   GTK_WIDGET_SET_FLAGS (layout, GTK_NO_WINDOW)
on your layout *before* it gets realized.

Remember that GTK_NO_WINDOW widgets draw to there
parent windows, so when you do gdk_draw_line, you should
not ignore widget->allocation.[xy]  :)

Cheers,
                                      -Tristan