Changes the specified menu item in the current menu into a sub-menu trigger.
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 Glut.glutGet(Glut.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.
Glut Class | Tao.FreeGlut Namespace | glutAddSubMenu | glutChangeToMenuEntry | glutRemoveMenuItem