WM_ENTERIDLE message (Windows)

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WM_ENTERIDLE message

Applies to: desktop apps only

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. 

#define WM_ENTERIDLE                    0x0121

Parameters

wParam

This parameter can be one of the following values.

ValueMeaning
MSGF_DIALOGBOX
0

The system is idle because a dialog box is displayed.

MSGF_MENU
2

The system is idle because a menu is displayed.

 

lParam

A handle to the dialog box (if wParam is MSGF_DIALOGBOX) or window containing the displayed menu (if wParam is MSGF_MENU).

Return value

An application should return zero if it processes this message.

Remarks

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

Requirements

Minimum supported client

Windows 2000 Professional

Minimum supported server

Windows 2000 Server

Header
Winuser.h (include Windows.h)

See also

Reference
DefWindowProc
Conceptual
Dialog Boxes

 

 

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Build date: 2/10/2012

Community Content

Đonny
Value 
WM_ENTERIDLE = &H121
Public Enum WM_ENTERIDLE As Integer
	MSGF_DIALOGBOX = 0
	MSGF_MENU = 2
End Enum