Hello to all,
I'm planning to develop a simulation game using panda3D
(http://www.panda3d.org/) and pygtk. Unfortunately, it is not possible
export an OpenGL-context from panda3D and directly draw on a GTK widget
using an OpenGL-extension. So I decided to draw the main window with
pygtk, make a part of the window transparent and position the panda3D
window behind it. I want the GTK-window to capture all keyboard and
mouse inputs.
My approach was to use shape_combine_mask
(http://www.pygtk.org/docs/pygtk/class-gdkwindow.html#method-gdkwindow--shape-combine-mask)
to make the right part of the window transparent. This works like a
charme except for one thing: The GTK window isn't only transparent at
the desired area; this area seems to be nonexistent, because if I click
on this area the panda3D window captures my mouse input.
So, is there a way of making parts of a window transparent without
making a "hole" in the window?
Using a compositing manager and set_opacity
(http://www.pygtk.org/docs/pygtk/class-gtkwindow.html#method-gtkwindow--set-opacity)
is no option, because running panda3D makes the composition manager
crash and return to normal mode on my target platform.
A solution which works on windows (xp and 7) and linux (ubuntu Karmic
Koala) would be nice ;-)
Thanks,
Christoph
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