The Old New Thing

Psychic debugging: Why messages aren't getting processed by your message pump

January 17, 2014 Jan 17, 2014 01/17/14

Raymond Chen

The second parameter to the is an optional window handle that is used to tell the function to retrieve only messages that belong to the specified window. A filtered is nearly always a bad idea, because your program will not respond to messages that don't meet the filter. Unlike a filtered (which simply returns "no messages satisfy the ...