glutswapbuffers(3) [centos man page]

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NAME

     glutSwapBuffers -- Swaps the buffers for the current window.

LIBRARY

     OpenGLUT - window

SYNOPSIS

     #include <openglut.h>

     void
     glutSwapBuffers(void);

DESCRIPTION

     This function signals to OpenGLUT that you are done drawing to the  current window   for now.  If your window is double-buffered (  GLUT_DOU-
     BLE  param to glutInitDisplayMode()), then OpenGLUT will swap the front buffer with the back buffer.

     This also computes your current frame-rate and prints the result on  stderr  if indicated by the  GLUT_FPS  environment variable.	The com-
     puted value is not necessarily the total frame rate, if you have multiple windows, as the statistic is the total number of buffer-swaps for
     the entire program.

CAVEATS

     This function has no effect if your window is  GLUT_SINGLE  .

     Frame rate is only calculated for double-buffered windows.

TODO

     How does this interact with overlays?

     Consider making  GLUT_FPS	keep per-window stats in a multi-window program.

SEE ALSO

     glutPostRedisplay(3) glutPostOverlayRedisplay(3) glutPostWindowRedisplay(3) glutPostWindowOverlayRedisplay(3) glutInitDisplaymode(3)

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NAME

     glutCreateWindow -- Create a new top-level window

LIBRARY

     OpenGLUT - window

SYNOPSIS

     #include <openglut.h>

     int
     glutCreateWindow(const char* title);

PARAMETERS

      title	  Title for created window

DESCRIPTION

     This function sends a request for a window to be constructed.  OpenGLUT immediately constructs a data structure to track further events with
     the window, on the theory that eventually the window manager will get back to us with a real window.  This allows us to begin registering
     callbacks immediately.

     In fact, you  must   register a display callback via glutDisplayFunc() before you enter glutMainLoop().

     For onscreen windows, you should not depend upon the window concretely existing or being visibile until you are told that it exists and is
     visible via a registered callback.

     The return value is an  int.    It should be positive for valid windows or 0 if failure occurred for some reason (Though traditional GLUT
     tends to bail out and abort rather than returning errors.)  The integer is your  window id  .  Old GLUT promises that these integers are
     ``small''; we do not reuse old  id  s, but do produce them sequentially.

     You can change the title later via glutSetWindowTitle().

SEE ALSO

     glutDestroyWindow(3) glutCreateSubWindow(3) glutSetWindowTitle(3) glutCreateMenuWindow(3)

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