tool for monitoring the windows messages used by an external application

i am looking a tool for monitoring t开发者_如何转开发he windows messages fired by an external application in real-time.

some time ago i used winsight32 (tool that ships with Delphi), but is very memory expensive and freeze my laptop.

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Winspector is probably what you want. Not only you can look at all the messages, but also at all windows flags.

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Does API Monitor do what you need?

Alternately, if you have Visual Studio installed (full, not express), there is a sample called Spy++ which might do what you want.