glutEntryFunc man page on MacOSX

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glutEntryFunc(3GLUT)		     GLUT		  glutEntryFunc(3GLUT)

NAME
       glutEntryFunc  -	 sets  the  mouse enter/leave callback for the current
       window.

SYNTAX
       #include <GLUT/glut.h>

       void glutEntryFunc(void (*func)(int state));

ARGUMENTS
       func	 The new entry callback function.

DESCRIPTION
       glutEntryFunc sets the mouse enter/leave callback for the current  win‐
       dow.  The  state callback parameter is either GLUT_LEFT or GLUT_ENTERED
       depending on if the mouse pointer has last left or entered the window.

       Passing NULL to glutEntryFunc disables  the  generation	of  the	 mouse
       enter/leave callback.

       Some window systems may not generate accurate enter/leave callbacks.  X
       IMPLEMENTATION NOTES An X implementation of GLUT should generate	 accu‐
       rate enter/leave callbacks.

SEE ALSO
       glutMotionFunc, glutCreateWindow

AUTHOR
       Mark J. Kilgard (mjk@nvidia.com)

GLUT				      3.7		  glutEntryFunc(3GLUT)
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