glutReshapeFunc (3) - Linux Manuals
glutReshapeFunc: Sets the Reshape callback for the current window.
NAMEglutReshapeFunc - Sets the Reshape callback for the current window.
LIBRARYOpenGLUT - windowcallback
SYNOPSISIn openglut.h Ft void Fn glutReshapeFunc void( *callback )( int w int h )
DESCRIPTIONThis registers a function with OpenGLUT, which OpenGLUT will invoke whenever the window is reshaped or resized. Your callback is only invoked when the host window system has actually changed the window size.
The parameters to your callback are the new width and height for your window.
If you do not provide a reshape callback, OpenGLUT
will simply call glViewport(0,0,
This callback is bound to the
To ask OpenGLUT about the present dimensions of the
CAVEATSUnlike other callbacks, GLUT has an Bf Em
The reshape callback should always be called, if registered, when your window is first created.