afx_msg void OnEnterIdle( UINT nWhy, CWnd* pWho );
nWhy
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:
| Value | Description |
| MSGF_DIALOGBOX | The system is idle because a dialog box is being displayed. |
| MSGF_MENU | The system is idle because a menu is being displayed. |
pWho
Specifies a pointer to the dialog box (if nWhy is MSGF_DIALOGBOX), or the window containing the displayed menu (if nWhy is MSGF_MENU). This pointer may be temporary, and should not be stored for later use.
A call to OnEnterIdle informs an application's main window procedure that a modal dialog box or a menu 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.
This message-handler member function calls the Default member function. Override this member function in your derived class to handle the WM_ENTERIDLE message.
CWnd::Default, WM_ENTERIDLE