title: MFC: Best place to handle context menu message?
body: <p>Using C++ with MFC.  I'm using a grid control which derives from CWnd (specifically the MFC Grid control on codeproject).  I want to display a context menu when the user right clicks on a cell.  My thinking is to handle the ON_WM_CONTEXTMENU() message.</p>
  
  <p>However, where is the best place to handle this, in a OnContextMenu in my (derived) grid control class or in the OnContextMenu in the dialog box class that holds the grid control? Is there a convention in MFC?</p>