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8.4

CTreeCtrl notification

Asked by stev75 in Microsoft Programming, Windows MFC Programming

Tags: mfc c++ clistctrl

My treecontrol has special actions on a "double-click", therefore i wish not to have an expanding / collapse action of the item.

I use notification handlers:

TVN_ITEMEXPANDING
NM_DBLCLK

1. It seems the expand / collapse action is also performed on a double-click, too.
2. It is always sent by windows before the dbclick-action.

My requirement: The decision wether an item should be changed its expand/collapse state is based on the double-click.

How can I spy the "double click" message in my OnItemExpanding() event handler ?
If I would know for the double-click, my little problem would be solved and i can return these values
*pResult = 0 (expand/collapse)
*presult = 1 (no action)

Is there a simple solution ? Thanks.

[+][-]09/03/09 06:31 AM, ID: 25250431Expert Comment

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[+][-]09/03/09 06:43 AM, ID: 25250553Accepted Solution

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About this solution

Zones: Microsoft Programming, Windows MFC Programming
Tags: mfc c++ clistctrl
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Solution Provided By: itsmeandnobodyelse
Participating Experts: 2
Solution Grade: A
 
[+][-]09/03/09 06:44 AM, ID: 25250556Author Comment

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[+][-]09/03/09 06:49 AM, ID: 25250614Assisted Solution

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[+][-]09/03/09 07:15 AM, ID: 25250881Expert Comment

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