The Old New Thing

Window message parameters do not come with metaphysical certitude

February 15, 2011 Feb 15, 2011 02/15/11

Raymond Chen

The MSDN documentation for window messages describes what each of the parameters means, but just because it means something doesn't mean that it is that something; it merely means it. But you knew this already. If you have a window handle, you can send it whatever message you like, with whatever parameters you like, even if those parameters ...