DFM_WM_INITMENUPOPUP message
Sent when a drop-down menu or submenu is about to become active. This allows an application to modify the menu before it is displayed, without changing the entire menu.
DFM_WM_INITMENUPOPUP
wParam = (WPARAM);
lParam = (LPARAM);
Parameters
-
wParam [in]
-
A handle to the drop-down menu or submenu.
-
lParam [in]
-
The low-order word specifies the zero-based relative position of the menu item that opens the drop-down menu or submenu.
The high-order word indicates whether the drop-down menu is the window menu. If the menu is the window menu, this parameter is TRUE; otherwise, it is FALSE.
Return value
If an application processes this message, it should return zero.
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows Vista [desktop apps only] |
Minimum supported server |
Windows Server 2008 [desktop apps only] |
Header |
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