A: 

I found out I had to add ON_WM_CONTEXTMENU() to message map.

CptanPanic  2010-02-05 15:57:19

related questions

Icons on menus of MFC Feature Pack classes
How do I display dynamic text at the mouse cursor via C++/MFC in a Win32 application.
App does not run with VS 2008 SP1 DLLs, previous version works with RTM versions
Programmatically change combobox
MFC IE embedded web browser wackiness
Reading VC++ CArchive Binary Format (or Java reading (CObArray))
regex for parsing resource (.rc) files
Do you know of a good program for editing/translating resource (.rc) files?
Lightbox style dialogs in MFC App
How to create a non-interactive window in MFC
64 bit tools like BoundsChecker & Purify
MFC: MessageBox during a Drag-Drop
How Can I Monitor Which Window Currently Has Keyboard Focus
MFC resources / links
Integrating Qt into legacy MFC applications
How to enable the TRACE macro in Release mode?
What's the simplest way to execute a query in Visual C++
How can an MFC application terminate itself?
How to host a WPF form in a MFC application
Future proofing a large UI Application - MFC with 2008 Feature pack, or C# and Winforms?
Best way to connect To Sql Server with MFC
Removing icon from Windows title bars without ditching close button or system menu?
Performance critical GUI application (windows,linux)
How to prevent the mouse cursor from being hidden after calling CComboBox::ShowDropDown?
Where is a good place to start programming GUIs for windows?