[Java-gnome-developer] X Window System Interaction

[Billy B. <84....@gm...>]

Hi,

I am going to write a map viewer application and use DrawingArea to draw 
map with its overlays.
The map render library is written in C and I am starting to write its 
JNI wrapper.
The wrapper will be periodically invoked in the ExposeEvent and needs to 
access some X11 objects, like Display, Screen, Window, Colormap, etc, 
which are created by java-gnome.
Is there any way to access it because I haven't found the corresponding 
methods of these functions 
(http://developer.gnome.org/gdk/unstable/gdk-X-Window-System-Interaction.html) 
?
I'm using java-gnome 4.0.20

Best Regards,
Billy