Catching a message

T i T i

How could I be able to catch a message that was sent to an application which I have its handle(Window handle)? thanks for help.

Mike Dimmick

Override WndProc. Stability. What an interesting concept. -- Chris Maunder

Wraith2

Or if you want a more dynamic solution look up the IMessageFilter interface. Message filters can be added and removed from windows forms application at runtime.

Heath Stewart

Note that this is better for handling application messages, not specific messages for a control. For the latter, you should override WndProc. Using an application filter (IMessageFilter) can slow down your code drastically if you don't optimize it by keeping in mind that all messages posted to your application will filter through it. Also, IMessageFilter only catches messages posted to your application pump (a la PostMessage) while overriding WndProc catches messages posted or sent (a la PostMessage or SendMessage).

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