The CheckMenuItem function sets the state of the specified menu item's check mark attribute to either checked or unchecked.
The CheckMenuItem function has been superseded by the SetMenuItemInfo function. You can still use CheckMenuItem, however, if you do not need any of the extended features of SetMenuItemInfo.
DWORD CheckMenuItem(
HMENU hmenu, |
// handle to menu |
UINT uIDCheckItem, |
// menu item to check or uncheck |
UINT uCheck |
// menu item flags |
); |
Value |
Meaning |
MF_BYCOMMAND |
Indicates that the uIDCheckItem parameter gives the identifier of the menu item. The MF_BYCOMMAND flag is the default, if neither the MF_BYCOMMAND nor MF_BYPOSITION flag is specified. |
MF_BYPOSITION |
Indicates that the uIDCheckItem parameter gives the zero-based relative position of the menu item. |
MF_CHECKED |
Sets the check-mark attribute to the checked state. |
MF_UNCHECKED |
Sets the check-mark attribute to the unchecked state. |
The return value specifies the previous state of the menu item (either MF_CHECKED or MF_UNCHECKED). If the menu item does not exist, the return value is 0xFFFFFFFF.
An item in a menu bar cannot have a check mark.
The uIDCheckItem parameter identifies a item that opens a submenu or a command item. For a item that opens a submenu, the uIDCheckItem parameter must specify the position of the item. For a command item, the uIDCheckItem parameter can specify either the item’s position or its identifier.
EnableMenuItem, GetMenuItemID, SetMenuItemBitmaps, SetMenuItemInfo
file: /Techref/os/win/api/win32/func/src/f05_5.htm, 4KB, , updated: 2000/4/7 12:19, local time: 2024/8/23 21:15,
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