linux-l: Can you help me ?

[Linux Programmer]

I am starting building tools for Linux.
1:)I think that tools must writen in XLib API (is this
true ?).
2:)I've 2 week experiance in Linx X Window But  to now
I don't know how to make a menu using XLib , Can you
tell how and 
3:)also can tell me where to find a resoureces about
XLib on internet.
4:) how to manage bitmaps using XLib ?
5:) is it true to build the tools using XLib ?
6:) If I use some toolkit like Motif or Gtk, can I use
XLib API's from that Toolkit ?


please help me in get answers .
Thank you very mcuh.


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