The EM_SETEVENTMASK message sets the event mask for a rich edit control. The event mask specifies which notification messages the control sends to its parent window.

Syntax

To send this message, call the SendMessage function as follows.

lResult = SendMessage(    // returns LRESULT in lResult
   hWndControl,           // (HWND) handle to destination control
   EM_SETEVENTMASK,       // (UINT) message ID
   wParam,                // = () wParam; 
   lParam                 // = () lParam;
);

Parameters

wParam

This parameter is not used; it must be zero.

lParam

New event mask for the rich edit control. For a list of event masks, see Rich Edit Control Event Mask Flags.

Return Value

This message returns the previous event mask.

Remarks

The default event mask (before any is set) is ENM_NONE.

Message Information

Header	Declared in Richedit.h
Minimum operating systems	Windows 95, Windows NT 4.0

See Also

EM_GETEVENTMASK, Rich Edit Control Event Mask Flags