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   <TITLE>Controls - Catching the "Enter" key in a CListCtrl (and other controls)</TITLE>
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<CENTER><H3><FONT COLOR="#AOAO99">
Catching the "Enter" key in a CListCtrl (and other controls)
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This article was contributed by <A HREF="mailto:rmore@cri.com">Randy More</A>.

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<p>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:

<FONT COLOR="#990000"><TT><PRE>
UINT SMUPPGrid::OnGetDlgCode()
{ 
	UINT result = CListCtrl::OnGetDlgCode();
	result = result | DLGC_WANTALLKEYS;
	return result;
}
</tt></PRE></FONT>

<p>Other options include (from MSDEV documentation):
<ul>
<li>DLGC_WANTALLKEYS All keyboard input. 
<li>DLGC_WANTARROWS Arrow keys. 
<li>DLGC_WANTCHARS WM_CHAR messages. 
<li>DLGC_WANTMESSAGE All keyboard input. The application passes this message on to the control. 
<li>DLGC_WANTTAB TAB key. 
<li>DLGC_BUTTON Button (generic). 
<li>DLGC_DEFPUSHBUTTON Default pushbutton. 
<li>DLGC_HASSETSEL EM_SETSEL messages. 
<li>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.) 
<li>DLGC_RADIOBUTTON Radio button. 
<li>DLGC_STATIC Static control. 
</ul>

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

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<p>Last updated: 9 May 1998

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