Hi John, thanks for your answer.
I found an article on http://mikehearn.wordpress.com/2006/03/26/gtk-windows-with-alpha-channels/ which uses only alpha channels, no mask and no set_opacity for window transparency. I'll give this a try. Additionally, I have this strange feeling that alpha channels and opacity aren't supported by GTK on MS windows platforms. Christoph Am 24.02.2010 13:19, schrieb John Stowers: > On Tue, 2010-02-23 at 08:33 +0100, Christoph David Hermann wrote: > >> 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 ;-) >> > I suspect you might have more luck by hacking pygtkglext, or writing > another small C extension to accept the gl-context from panda3d. > > John > > >> Thanks, >> Christoph >> >> _______________________________________________ >> pygtk mailing list pygtk@daa.com.au >> http://www.daa.com.au/mailman/listinfo/pygtk >> Read the PyGTK FAQ: http://faq.pygtk.org/ >> > > _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
