CTreeCtrl and RButtonUp

[WDW]

In my TreeView control...

I used ClassWizard to connect the WM_RBUTTONUP to the Member function OnRButtonUp. The problem with this is that it only occurs when I double right click OR when I move the cursor while the right mouse button is down. I want to add a popup menu where I right-clicked and get the hItem that was clicked.

Any help would be appreciated,

WDW

[sgeppert]

This appears to happen when you only implement a message handler for WM_RBUTTONUP. Try processing both WM_RBUTTONDOWN and WM_RBUTTONUP and your method will be invoked when the user single clicks with the right mouse button on a tree item.

[Eri523]

Good intent, but the post you are replying to is a little more than 11 years old, and the guy who wrote it didn't ever post again since then. I'm pretty sure he won't read that.

You should better answer a more recent question next time. ;)

But anyway, welcome to CodeGuru! :)

[Randor]

Heh,

I apologize for once again resurrecting an old thread. This page actually comes up with a high search engine ranking when you search for CTreeCtrl not recieving the WM_RBUTTONUP message.

Since the information here is incorrect lets fix that so the next guy gets good information.

The CTreeCtrl has what I could consider a design flaw in that it internally processes the WM_RBUTTONDOWN and WM_RBUTTONUP messages. If your wondering where your WM_RBUTTONUP went... it was consumed by the CTreeCtrl class... and in its place... a WM_NOTIFY containing a NM_RCLICK was sent to the parent window followed by a WM_CONTEXTMENU message to the parent window.

So... if you want to handle WM_RBUTTONUP in a CTreeCtrl derived class... you will need to add a ON_NOTIFY_REFLECT handler for the NM_RCLICK message and then sendmessage the WM_CONTEXTMENU to your own window handle.

Best Wishes,
-David Delaune

[Arjay]

To display a context menu, just handle the WM_CONTEXTMENU msg.

[Randor]

To display a context menu, just handle the WM_CONTEXTMENU msg.

Hi Arjay,

Unfortunately a CTreeCtrl derived class will never recieve a WM_CONTEXTMENU message in response to a right click. If you want to display a context menu when the user right clicks in your CTreeCtrl derived class you will need to add a ON_NOTIFY_REFLECT handler for the NM_RCLICK message and then sendmessage the WM_CONTEXTMENU manually.

Best Wishes,
-David Delaune

[Arjay]

If the tree control is a derived class, yes you must reflect and use on notify (like when deriving all control clases); otherwise just handle the wm_contextmeu msg.

The main point is to handle WM_CONTEXTMENU over the right button up/down messages.