[ REQ 5034]: XWindows; Co-exist

[roseman at dimension4.math.uiowa.edu]

I am planning on buying a copy of Co-exist (Xwindows for NeXT).

I have a student (undergraduate) who may be writing a geomview  
module.  This student has not programmed on a NeXT nor in XWindows  
(but has done C++).  I have never dealt with XWindows myself.

I know that the newer modules (such as 4Dtetris, nd-color panel,  
nd-slicer, etc) are done in XWindows. 


******************

What is the suggested way to go on this ?  


I am assuming that the final goal should be an XWindows version.  Is  
this correct ? 


Should this be done first on the Next then ported to X, or is it  
reasonable to just do X in the first place ?

Am I correct in assuming that I need the developers version of  
Co-exist to write such a module ?

What books on XWindows, if any, are needed/(highly recommended)  to  
write a relatively simple module ?