glutGetWindowData – Get the user data for the current window
Library
OpenGLUT – window
Synopsis
In openglut.h Ft void* Fn glutGetWindowData void
Description
This function will return whatever Bf Sy
void* Ef
value is associated with the Bf Li
current window Ef
via glutSetWindowData(). This is Bf Sy
NULL Ef
if you did not associate a pointer with your window. This can be useful in a situation where you have a single callback function performing services for many windows. You Bf Em
could Ef
keep track of the Bf Li
window id Ef
s in a global list and search for the Bf Li
current window Ef
in that list. But this is quicker than searching a data structure, and allows you to avoid the use of globals for this.
See Also
glutSetWindowData(3)
