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glutmenustatusfunc(3) [centos man page]

glutMenuStatusFunc -- Modern variant of glutMenuStateFunc() LIBRARY
OpenGLUT - menucallback SYNOPSIS
#include <openglut.h> void glutMenuStatusFunc(void( *callback )( int status, int x, int y )); PARAMETERS
callback Client menu status hook. DESCRIPTION
Broadly, OpenGLUT operates in two modes. At any given time, it is either in menu mode (with a popup menu display, possibly with subitems) or it is not. When moving from non-menu to menu status, callback (if defined) will be called with GLUT_MENU_IN_USE . Conversely, when moving from menu to non-menu status, callback (if defined) will be called with GLUT_MENU_NOT_IN_USE . This differs from glutMenuStateFunc() in that callback is also given the x and y coordinates of the mouse when the menu state transi- tion took place. This callback is bound to both the current window and the current menu . BUGS
Your callback is not actually called presently. SEE ALSO
glutMenuStateFunc(3) Epoch

Check Out this Related Man Page

glutMenuStatusFunc(3GLUT)					       GLUT						 glutMenuStatusFunc(3GLUT)

glutMenuStatusFunc - sets the global menu status callback. SYNTAX
void glutMenuStatusFunc(void (*func)(int status, int x, int y)); void glutMenuStateFunc(void (*func)(int status)); ARGUMENTS
func The new menu status (or state) callback function. DESCRIPTION
glutMenuStatusFunc sets the global menu status callback so a GLUT program can determine when a menu is in use or not. When a menu status callback is registered, it will be called with the value GLUT_MENU_IN_USE for its value parameter when pop-up menus are in use by the user; and the callback will be called with the value GLUT_MENU_NOT_IN_USE for its status parameter when pop-up menus are no longer in use. The x and y parameters indicate the location in window coordinates of the button press that caused the menu to go into use, or the location where the menu was released (may be outside the window). The func parameter names the callback function. Other callbacks continue to operate (except mouse motion callbacks) when pop-up menus are in use so the menu status callback allows a program to suspend animation or other tasks when menus are in use. The cascading and unmapping of sub-menus from an initial pop-up menu does not generate menu status callbacks. There is a single menu status callback for GLUT. When the menu status callback is called, the current menu will be set to the initial pop-up menu in both the GLUT_MENU_IN_USE and GLUT_MENU_NOT_IN_USE cases. The current window will be set to the window from which the initial menu was popped up from, also in both cases. Passing NULL to glutMenuStatusFunc disables the generation of the menu status callback. glutMenuStateFunc is a deprecated version of the glutMenuStatusFunc routine. The only difference is glutMenuStateFunc callback prototype does not deliver the two additional x and y coordinates. SEE ALSO
glutCreateMenu, glutCreateWindow AUTHOR
Mark J. Kilgard ( GLUT
3.7 glutMenuStatusFunc(3GLUT)
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