glutvisibilityfunc(3) [centos man page]

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NAME

     glutVisibilityFunc -- Sets the Visibility callback for the current window.

LIBRARY

     OpenGLUT - deprecated

SYNOPSIS

     #include <openglut.h>

     void
     glutVisibilityFunc(void( *callback )( int status ));

PARAMETERS

      callback	   Client hook for visibility changes.

DESCRIPTION

     OpenGLUT may call this function when your window's visbility status has changed.	status	can take on two values:  GLUT_NOT_VISIBLE  or
     GLUT_VISIBLE  .  If any pixel of your window (including descendants) is visible, your window is  GLUT_VISIBLE  .

     The callback is bound to the  current window  .

CAVEATS

     This is not a polling mechanism.  You are only informed of transitions that OpenGLUT observes while your callback is in place.

     This function appears to be superceded by glutWindowStatusFunc().

     This callback is mutually exclusive of glutWindowStatusFunc().

SEE ALSO

     glutWindowStatusFunc(3)

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NAME

     glutPopWindow -- Request to raise the current window to the top

LIBRARY

     OpenGLUT - window

SYNOPSIS

     #include <openglut.h>

     void
     glutPopWindow(void);

DESCRIPTION

     Request that the  current window	be brought to the top.

     A window can be in front of or behind other windows, as determined by the z-order from front to back.  Top-level OpenGLUT windows can be
     placed at the front or back of the z-order by means of the glutPopWindow() and glutPushWindow() API functions.

     A z-order also applies to the subwindows of a top-level window.  While the z-order of top-level windows can usually be adjusted by the user,
     subwindow z-order is controlled entirely by the application.

     If this has any effect on your window's visibility, you should receive a glutWindowStatusFunc() callback and a glutDisplayFunc() callback.

CAVEATS

     The z-order of top-level windows is ultimately managed by the windowing system.  Therefore, a push or pop request by an OpenGLUT application
     may not necessarily succeed or take immediate effect.

     Not applicable to offscreen windows.

SEE ALSO

     glutCreateWindow(3) glutDisplayFunc(3) glutPushWindow(3) glutWindowStatusFunc(3)

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