glutreshapefunc(3) [centos man page]

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NAME

     glutReshapeFunc -- Sets the Reshape callback for the current window.

LIBRARY

     OpenGLUT - windowcallback

SYNOPSIS

     #include <openglut.h>

     void
     glutReshapeFunc(void( *callback )( int w, int h ));

PARAMETERS

      callback	   Client function for reshape-window event.

DESCRIPTION

     This 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,  w,   h).

     This callback is bound to the  current window  .

     To ask OpenGLUT about the present dimensions of the  current window  , you can use glutGet().

CAVEATS

     Unlike other callbacks, GLUT has an  active   default behavior if you do not set this.   (Most event types passively do nothing if you do not
     specify a callback to handle them.)

     The reshape callback should always be called, if registered, when your window is first created.

SEE ALSO

     glutGet(3) glutReshapeWindow(3)

								       Epoch

glutReshapeFunc(3GLUT)						       GLUT						    glutReshapeFunc(3GLUT)

NAME

       glutReshapeFunc - sets the reshape callback for the current window.

SYNTAX

       #include <GLUT/glut.h>

       void glutReshapeFunc(void (*func)(int width, int height));

ARGUMENTS

       func	 The new reshape callback function.

DESCRIPTION

       glutReshapeFunc	sets  the  reshape callback for the current window. The reshape callback is triggered when a window is reshaped. A reshape
       callback is also triggered immediately before a window's first display callback after a window is created or whenever an  overlay  for  the
       window is established. The width and height parameters of the callback specify the new window size in pixels. Before the callback, the cur-
       rent window is set to the window that has been reshaped.

       If a reshape callback is not registered for a window or NULL is passed to glutReshapeFunc (to deregister a previously registered callback),
       the  default  reshape callback is used. This default callback will simply call glViewport(0,0,width,height) on the normal plane (and on the
       overlay if one exists).

       If an overlay is established for the window, a single reshape callback is generated. It is the callback's responsibility to update both the
       normal plane and overlay for the window (changing the layer in use as necessary).

       When  a top-level window is reshaped, subwindows are not reshaped. It is up to the GLUT program to manage the size and positions of subwin-
       dows within a top-level window. Still, reshape callbacks will be triggered for subwindows when their size is changed using  glutReshapeWin-
       dow.

SEE ALSO

       glutDisplayFunc, glutReshapeWindow

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						    glutReshapeFunc(3GLUT)