mumble-overlay(1) General Commands Manual mumble-overlay(1)NAME
mumble-overlay - load OpenGL overlay for Mumble.
SYNOPSIS
mumble-overlay executable
DESCRIPTION
This wrapper will load the OpenGL overlay for Mumble into the application of your choice. This allows you to easily see who is talking even
in fullscreen games and applications.
Nothing will be shown unless you have Mumble running and it is currently connected to a server.
ENVIRONMENT VARIABLES
MUMBLE_OVERLAY_DEBUG
If this environment variable is set, extended debugging will be output to standard output. Only useful for debugging.
EXAMPLE
To run glxgears with the mumble-overlay active:
mumble-overlay glxgears
NOTES
This will only work with OpenGL drivers which support the full OpenGL and GLX specifications.
SEE ALSO mumble(1), murmurd(1).
AUTHOR
mumble and murmurd was written by Thorvald Natvig <slicer@users.sourceforge.net>.
2008 January 07 mumble-overlay(1)
Check Out this Related Man Page
glutOverlayDisplayFunc(3GLUT) GLUT glutOverlayDisplayFunc(3GLUT)NAME
glutOverlayDisplayFunc - sets the overlay display callback for the current window.
SYNTAX
#include <GLUT/glut.h>
void glutOverlayDisplayFunc(void (*func)(void));
ARGUMENTS
func The new overlay display callback function.
DESCRIPTION
glutDisplayFunc sets the overlay display callback for the current window. The overlay display callback is functionally the same as the win-
dow's display callback except that the overlay display callback is used to redisplay the window's overlay.
When GLUT determines that the overlay plane for the window needs to be redisplayed, the overlay display callback for the window is called.
Before the callback, the current window is set to the window needing to be redisplayed and the layer in use is set to the overlay. The
overlay display callback is called with no parameters. The entire overlay region should be redisplayed in response to the callback (this
includes ancillary buffers if your program depends on their state).
GLUT determines when the overlay display callback should be triggered based on the window's overlay redisplay state. The overlay redisplay
state for a window can be either set explicitly by calling glutPostOverlayRedisplay or implicitly as the result of window damage reported
by the window system. Multiple posted overlay redisplays for a window are coalesced by GLUT to minimize the number of overlay display call-
backs called.
Upon return from the overlay display callback, the overlay damaged state of the window (returned by calling glutLayerGet(GLUT_OVERLAY_DAM-
AGED) is cleared.
The overlay display callback can be deregistered by passing NULL to glutOverlayDisplayFunc. The overlay display callback is initially NULL
when an overlay is established. See glutDisplayFunc to understand how the display callback alone is used if an overlay display callback is
not registered.
SEE ALSO
glutDisplayFunc, glutPostOverlayRedisplay
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 glutOverlayDisplayFunc(3GLUT)
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