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WM_ENTERIDLE Overview  Group

The WM_ENTERIDLE message is sent to the owner window of a modal dialog box or menu that is entering an idle state. A modal dialog box or menu enters an idle state when no messages are waiting in its queue after it has processed one or more previous messages.


fuSource = wParam;    // idle-source flag 

hwnd = (HWND) lParam; // handle of dialog box or owner window 



Value of wParam. Specifies whether the message is the result of a dialog box or a menu being displayed. This parameter can be one of the following values:




The system is idle because a dialog box is displayed.


The system is idle because a menu is displayed.

Value of lParam. Contains the handle of the dialog box (if fuSource is MSGF_DIALOGBOX) or of the window containing the displayed menu (if fuSource is MSGF_MENU).

Return Values

An application should return zero if it processes this message.


You can suppress the WM_ENTERIDLE message for a dialog box by creating the dialog box with the DS_NOIDLEMSG style.

See Also


See also:

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