Hi,all:
  When I use the FindWindow(lpClassName,lpWindowName),Generally,which value  
should be passed on the lpClassName parameter.Offer your good idea,please.

lpClassName should be the class namme of the window you are trying to
find.  It is not a C++ "class" it is a Win32 property of a window.  For
example, on Win2000, the Notepad main window class name is "Notepad" and
the class name of its typing area is "Edit", which means it is a
standard edit control.  Use Spy++ to find the class name of windows.

--
Scott McPhillips [VC++ MVP]