[ pyopengl-Bugs-1591492 ] Callback resetting problem if GLUT_GUARD_CALLBACKS is set

Bugs item #1591492, was opened at 2006-11-06 18:12
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Category: GLUT
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: David Murmann (dmurmann)
Assigned to: Nobody/Anonymous (nobody)
Summary: Callback resetting problem if GLUT_GUARD_CALLBACKS is set

Initial Comment:
This was observed in OpenGL-ctypes 3.0.0a4:

The code in OpenGL/GLUT/special.py does not
correctly check for None as a callback function.
To trigger the problem deregister a callback on
a platform where GLUT_GUARD_CALLBACKS is True
(like win32).

In line 58 the condition

  if GLUT_GUARD_CALLBACKS:

could be replaced by

  if GLUT_GUARD_CALLBACKS and callable( function ):

to fix this.


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