Description: A complete ATL control can only enter uppercase and lowercase letters, for non-alphabetic input trigger event. Very complete example.
To Search:
File list (Check if you may need any files):
MyTextBox\MyTextBox\CMyText.bmp
.........\.........\CMyText.cpp
.........\.........\CMyText.h
.........\.........\CMyText.htm
.........\.........\CMyText.rgs
.........\.........\dlldata.c
.........\.........\dlldatax.c
.........\.........\dlldatax.h
.........\.........\dllmain.cpp
.........\.........\dllmain.h
.........\.........\MyTextBox.aps
.........\.........\MyTextBox.cpp
.........\.........\MyTextBox.def
.........\.........\MyTextBox.idl
.........\.........\MyTextBox.rc
.........\.........\MyTextBox.rgs
.........\.........\MyTextBox.vcproj
.........\.........\MyTextBox.vcproj.20110414-0917.aijin.user
.........\.........\MyTextBox.vcproj.vspscc
.........\.........\MyTextBox_i.c
.........\.........\MyTextBox_i.h
.........\.........\MyTextBox_p.c
.........\.........\ReadMe.txt
.........\.........\resource.h
.........\.........\stdafx.cpp
.........\.........\stdafx.h
.........\.........\targetver.h
.........\.........\_ICMyTextEvents_CP.h
.........\MyTextBox.sln
.........\MyTextBox.suo
.........\.........\Debug
.........\MyTextBox
MyTextBox