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发表于 2016-6-27 16:44:38
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al_toggle_menu_item_flags
int al_toggle_menu_item_flags(ALLEGRO_MENU *menu, int pos, int flags)
Source Code
Toggles the specified menu item's flags. See al_insert_menu_item for a description of the available flags.
Returns a bitfield of only the specified flags that are set after the toggle. A flag that was not toggled will not be returned, even if it is set. Returns -1 if the id is invalid.
Since: 5.1.0
Unstable API: Redundant with al_get/set_menu_item_flags.
See also: al_get_menu_item_flags, al_set_menu_item_flags
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