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Catching the 'Enter' Key in windows and controls

, 12 Jan 2000 69.2K 35
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How to handle the WM_GETDLGCODE message in order to catch special key strokes.
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In order to catch the "Enter" key, and other special keys in a CListCtrl (or any control for that matter) it is necessary to derive your own class and add a handler for the WM_GETDLGCODE message. To allow all special keys to be processed by the control add the following:

UINT SMUPPGrid::OnGetDlgCode()
	UINT result = CListCtrl::OnGetDlgCode();
	result = result | DLGC_WANTALLKEYS;
	return result;

Other options include (from MSDEV documentation):

  • DLGC_WANTALLKEYS: All keyboard input.
  • DLGC_WANTARROWS: Arrow keys.
  • DLGC_WANTMESSAGE: All keyboard input. The application passes this message on to the control.
  • DLGC_BUTTON: Button (generic).
  • DLGC_DEFPUSHBUTTON: Default pushbutton.
  • DLGC_UNDEFPUSHBUTTON: No default pushbutton processing. (An application can use this flag with DLGC_BUTTON to indicate that it processes button input but relies on the system for default pushbutton processing.)
  • DLGC_RADIOBUTTON: Radio button.
  • DLGC_STATIC: Static control.

This is a relatively simple process but it is not really all that intuitive or well documented.


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About the Author

Randy More
United States United States
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Comments and Discussions

GeneralMy vote of 3 Pin
buyong25-Sep-11 17:18
memberbuyong25-Sep-11 17:18 
QuestionIs this kind of catching ENTER Key wrong ? Pin
fG20-Jan-01 4:59
memberfG20-Jan-01 4:59 
AnswerRe: Is this kind of catching ENTER Key wrong ? Pin
Arsi Rantala25-Feb-01 23:31
memberArsi Rantala25-Feb-01 23:31 
AnswerRe: Is this kind of catching ENTER Key wrong ? Pin
George Archibald13-Aug-01 10:45
memberGeorge Archibald13-Aug-01 10:45 

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