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glutchangetosubmenu(3glut) [osx man page]

glutChangeToSubMenu(3GLUT)					       GLUT						glutChangeToSubMenu(3GLUT)

NAME
glutChangeToSubMenu - changes the specified menu item in the current menu into a sub-menu trigger. SYNTAX
#include <GLUT/glut.h> void glutChangeToSubMenu(int entry, char *name, int menu); ARGUMENTS
entry Index into the menu items of the current menu (1 is the topmost menu item). name ASCII character string to display in the menu item to cascade the sub-menu from. menu Identifier of the menu to cascade from this sub-menu menu item. DESCRIPTION
glutChangeToSubMenu changes the specified menu item in the current menu into a sub-menu trigger. The entry parameter determines which menu item should be changed, with one being the topmost item. entry must be between 1 and glutGet(GLUT_MENU_NUM_ITEMS) inclusive. The menu item to change does not have to be a sub-menu trigger already. The string name will be displayed for the newly changed sub-menu trigger. The menu identifier names the sub-menu to cascade from the newly added sub-menu trigger. SEE ALSO
glutChangeToMenuEntry, glutAddSubMenu, glutRemoveMenuItem AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutChangeToSubMenu(3GLUT)

Check Out this Related Man Page

glutCreateMenu(3GLUT)						       GLUT						     glutCreateMenu(3GLUT)

NAME
glutCreateMenu - creates a new pop-up menu. SYNTAX
#include <GLUT/glut.h> int glutCreateMenu(void (*func)(int value)); ARGUMENTS
func The callback function for the menu that is called when a menu entry from the menu is selected. The value passed to the callback is determined by the value for the selected menu entry. DESCRIPTION
glutCreateMenu creates a new pop-up menu and returns a unique small integer identifier. The range of allocated identifiers starts at one. The menu identifier range is separate from the window identifier range. Implicitly, the current menu is set to the newly created menu. This menu identifier can be used when calling glutSetMenu. When the menu callback is called because a menu entry is selected for the menu, the current menu will be implicitly set to the menu with the selected entry before the callback is made. EXAMPLE
Here is a quick example of how to create a GLUT popup menu with two submenus and attach it to the right button of the current window: int submenu1, submenu2; submenu1 = glutCreateMenu(selectMessage); glutAddMenuEntry("abc", 1); glutAddMenuEntry("ABC", 2); submenu2 = glutCreateMenu(selectColor); glutAddMenuEntry("Green", 1); glutAddMenuEntry("Red", 2); glutAddMenuEntry("White", 3); glutCreateMenu(selectFont); glutAddMenuEntry("9 by 15", 0); glutAddMenuEntry("Times Roman 10", 1); glutAddMenuEntry("Times Roman 24", 2); glutAddSubMenu("Messages", submenu1); glutAddSubMenu("Color", submenu2); glutAttachMenu(GLUT_RIGHT_BUTTON); X IMPLEMENTATION NOTES
If available, GLUT for X will take advantage of overlay planes for implementing pop-up menus. The use of overlay planes can eliminate dis- play callbacks when pop-up menus are deactivated. The SERVER_OVERLAY_VISUALS convention is used to determine if overlay visuals are avail- able. SEE ALSO
glutCreateWindow, glutDestroyMenu, glutSetMenu, glutAttachMenu AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutCreateMenu(3GLUT)
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