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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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WM_MENUCHAR
The WM_MENUCHAR message is 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.
WM_MENUCHAR
chUser = (char) LOWORD(wParam); // ASCII character
fuFlag = (UINT) HIWORD(wParam); // menu flag
hmenu = (HMENU) lParam; // handle of menu
Parameters
chUser
Value of the low-order word of wParam. Specifies the ASCII character that corresponds to the key the user pressed.
fuFlag
Value of the high-order word of wParam. Specifies the type of the active menu. This parameter can be one of the
following values:
Value
| Meaning
| MF_POPUP
| drop-down menu, submenu, or shortcut menu
| MF_SYSMENU
| window menu (System menu or Control menu)
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hmenu
Value of lParam. Identifies the active menu.
Return Values
An application that processes this message should return one of the following
values in the high-order word of the return value:
Value
| Meaning
| 0
| Informs Windows that it should discard the character the user pressed and
create a short beep on the system speaker.
| -
| Informs Windows that it should close the active menu.
| -
| Informs Windows that the low-order word of the return value specifies the
zero-based relative position of a menu item. This item is selected by Windows.
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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.
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