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Article #171

Problem building modules

#171
From: Eric Zundel Ayers
Date: Sat, 12 Dec 1992 00:44
35 lines
1902 bytes
Any help with the following problems greatly appreciated!

First of all, I have tried to subscribe the the explorer mailing list
through explorer-request@castle.ed.ac.uk and have had no response.
Could my request getting lost somewhere?  Could someone from the list
please contact me?

Secondly:
I have had some problems building explorer modules.  

  a) I tried to enter the example module in the User's Guide (3.1.1),
     but my created module seems to crash with the next call to the Explorer
     API after I call cxGeoRoot(); (I discovered this by doing simple
     printf's after each call, so I may be off here.) 

  b) On a module under development, we discovered that we needed to add another
     input port.  We edited the .mres with module builder and added the
     code to call it within our function.  (We are not using the Data
     Wrapper we are using X in a drawing area)  I call cxInputPortOpen
     and I get back an integer (3, the third parameter defined in the
     mbuilder)  But when I call cxInputDataGet, I get a ptr  to 0 and
     then, of course, the call to cxParamStrGet fails.  When I try to
     get its type, cxParmTypeGet returns a -1.  

Thanks again!
Eric.
Eric Z. Ayers
zundel@cc.gatech.edu
Graphics, Visualization, and Usability Center (GVU)
Georgia Institute of Technology, Atlanta, GA 30213 USA
-- 
                                   \\||//
Eric Zundel Ayers                  +----+
Georgia Institute of Technology    |----|         College of Architecture
gt3021b@prism.gatech.edu           +----+    Home of the House of Suicide
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!prism!gt3021b
From: gt3021b@prism.gatech.EDU (Eric Zundel Ayers)
Newsgroups: comp.graphics.explorer
Subject: Problem building modules
Message-ID: <78154@hydra.gatech.EDU>
Date: 12 Dec 92 00:44:49 GMT
Organization: Georgia Institute of Technology
Lines: 35