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WM_MENUCHAR message

Sent when a menu is active and the user presses a key that does not correspond to any mnemonic or accelerator key. This message is sent to the window that owns the menu.


#define WM_MENUCHAR                     0x0120

Parameters

wParam

The low-order word specifies the character code that corresponds to the key the user pressed.

The high-order word specifies the active menu type. This parameter can be one of the following values.

ValueMeaning
MF_POPUP
0x00000010L

A drop-down menu, submenu, or shortcut menu.

MF_SYSMENU
0x00002000L

The window menu.

 

lParam

A handle to the active menu.

Return value

An application that processes this message should return one of the following values in the high-order word of the return value.

Return code/valueDescription
MNC_CLOSE
1

Informs the system that it should close the active menu.

MNC_EXECUTE
2

Informs the system that it should choose the item specified in the low-order word of the return value. The owner window receives a WM_COMMAND message.

MNC_IGNORE
0

Informs the system that it should discard the character the user pressed and create a short beep on the system speaker.

MNC_SELECT
3

Informs the system that it should select the item specified in the low-order word of the return value.

 

Remarks

The low-order word is ignored if the high-order word contains 0 or 1.

An application should process this message when an accelerator is used to select a menu item that displays a bitmap.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winuser.h (include Windows.h)

See also

Reference
HIWORD
LOWORD
Conceptual
Keyboard Accelerators

 

 

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