keyboard strokes

[happycpp]

hello everyone... i have a small question: i want to intercept keyboard strokes being sent to applications...for example i want the 'a' button to send a 'b' to applications instead of 'a'...should i use hooks or subclassing...i need to know what are the appropiate APIs that should be used.. note:i want this to be done for all applications ((processes)) not only one...

[ThatsAlok]

Hook is better , just try global Keyboard hook. saeedmalas wrote: .i need to know what are the appropiate APIs that should be used.. SetWindowsHookEx(...) ,but for Global hook you have to create a dll. look for more example here :- http://www.codeproject.com/system/hooksys.asp http://www.codeproject.com/system/Paladin.asp http://www.codeproject.com/dll/hooks.asp

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[happycpp]

it looks like that using SetWindowsHookEx is only for monitoring not modifying...i actually want to prevent a message from reaching applications or modifying that message before reaching them..not just see what the message is...

[ThatsAlok]

Actually after hooking you can use GetWindowLong to to get Window procedure of any window and you can modify the charater from there. look for that in more Detail in the link given by me in last post

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[John R Shaw]

This is not a small question! There are aticles at CP that may give you the information that you seak. I'll tell you this much, you need to use hooks. INTP "The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes." Andrew W. Troelsen

[happycpp]

if i'm going to do that,i think i have to get the Window procedure of all windows of all processes...i think that's a very hard work..isn't there an easier way..