HOW TO ADD A FUNCTION TO THE TEST APPS
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	1. Change ta.rc to add an menu item to the dialog menu bar
	2. Add the define id to ta.h
	3. Add the function to WinProc in ta.cxx
	4. Add the function prototype in ta.hxx
	5. create a file to contain the testing function.
		the file must has the following line:
		#include "tester.hxx"
		It will include all the blt header stuff.
	6. Change the makefile to include your file in the source list.
