BOOL EnableMenuItem(hMenu,wIDEnableItem,wEnable)
This function enables, disables, or grays a menu item.
| Parameter | Type/Description |
| hMenu | HMENU Specifies the menu. | ||
| wIDEnableItem | WORD Specifies the menu item to be checked. The wIDEnableItem parameter can specify pop-up menu items as well as menu items. | ||
| wEnable | WORD Specifies the action to take. It can be a combination of MF_DISABLED, MF_ENABLED, or MF_GRAYED, with MF_BYCOMMAND or MF_BYPOSITION. These values can be combined by using the bitwise OR operator. These values have the following meanings: | ||
| Value | Meaning | ||
| MF_BYCOMMAND | Specifies that the wIDEnableItem parameter gives the menu item ID (MF_BYCOMMAND is the default ID). | ||
| MF_BYPOSITION | Specifies that the wIDEnableItem parameter gives the position of the menu item (the first item is at position zero). | ||
| MF_DISABLED | Menu item is disabled. | ||
| MF_ENABLED | Menu item is enabled. | ||
| MF_GRAYED | Menu item is grayed. | ||
The return value specifies the previous state of the menu item. The return value is –1 if the menu item does not exist.
To disable or enable input to a menu bar, see the WM_SYSCOMMAND message.