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| void | glutMenuStateFunc (void(*callback)(int status)) | 
| void | glutVisibilityFunc (void(*callback)(int status)) | 
| void | glutWMCloseFunc (void(*callback)(void)) | 
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| Deprecated variant of glutMenuStatusFunc(). 
 
 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 callback is bound to both the current window and the current menu. 
 
 
 
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| Sets the Visibility callback for the current window. 
 
 The callback is bound to the current window. 
 
 
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| Window destruction callback. 
 
 
 
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