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Check the glutDisplayFunc() callback for being a NULL pointer. This is

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illegal and is disallowed in GLUT 3.0+, so we disallow it too in
freeglut 2.0.1+


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@221 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
rkrolib 2003-10-11 07:44:02 +00:00
parent 45899e5ed9
commit 2dc7f60b59
1 changed files with 3 additions and 0 deletions
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3
freeglut/freeglut/src/freeglut_callbacks.c
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@ -48,6 +48,9 @@
*/ */
void FGAPIENTRY glutDisplayFunc( void (* callback)( void ) ) void FGAPIENTRY glutDisplayFunc( void (* callback)( void ) )
{ {
if( !callback )
fgError ("Fatal error in program. NULL display callback not "
"permitted in GLUT 3.0+ or freeglut 2.0.1+\n");
SET_CALLBACK( Display ); SET_CALLBACK( Display );
/* /*