-=> Quoting Jim Fitzsimmons to All <=- 

 JF> Hello,
 JF> I am attempting to learn to program under OS/2 and well still need to
 JF> do alot of reading. Can anyone explain what an Object Window is, and
 JF> perhaps provide a scenario as to why one is created ? Any Gurus out
 JF> there ? Thanks.. 

An object window doesn't have a visible window associated with it and
doesn't accept user input, but can send and receive messages.  It
usually runs as a secondary thread of the main thread.

Object window threads aren't bound to the 1/10'th second rule, which
says an app should not take longer than 1/10th of a second to process
messages it receives.  If your app receives a message that requires it
to do something that's going to take longer than .1 of a second, then
you post a message to the object window and let it do the work, so the
main thread is still able to process messages from PM.

This is explained in Petzold'z book.

Phil - Fido:  1:124/8014.0 | Internet:  phil.crown{at}bluecafe.com

--- Blue Wave/OS2 v2.30