CWnd::SetFont
Visual Studio 2010
Sends the WM_SETFONT message to the window to use the specified font.
void SetFont( CFont* pFont, BOOL bRedraw = TRUE );
This method has no effect unless the window processes the WM_SETFONT message. Many MFC classes that derive from CWnd process this message because they are attached to a predefined window class that includes a message handler for the WM_SETFONT message. To use this method, classes that you derive from CWnd must define a method handler for the WM_SETFONT message.