Jonathan Tew wrote in a message to All:

 JT> I'm studying PM programming right now and have some
 JT> questions.  According to my book there is the "one/tenth of
 JT> a second rule" which is your program should be able to
 JT> respond to the next message in the queue within this amount
 JT> of time.  It says that it is ok to violate this occasionally
 JT> like on program load etc, but how can I get around the
 JT> message processing when I'm trying to run a Zmodem transfer
 JT> procedue that needs to update a dialog window every time a
 JT> block is transferred.  Multi-threaded programs can't share
 JT> the same HAB or HMQ so how do I accomplish this.  I think
 JT> the bottom line is that the Zmodem procedure still has to
 JT> check the message queue.  

Have the Zmodem transfer thread write its current status asynchronously
into a structure in memory that you define.  Then your thread that handles
message processing can, when it runs, pull information out of this
structure and display it to the user.  It might also be a good idea to have
the Zmodem thread acquire a RAM semaphore while it is updating the
structure in order to prevent the message processing thread from reading
partially updated data.

Using this simple system, the information will only be updated when the
message processing thread happens to be unblocked for another reason.  If
you want to force the message processing thread to run whenever the Zmodem
transfer thread updates the shared data, then have the Zmodem transfer
thread send a message to its own process with WinPostMsg() to wake up the
message processing thread.

 JT> Another thing that bothers me is the lack of real examples
 JT> on how to use the dialog controls.  I have two books and
 JT> neither of them cover anything more than back list boxes,
 JT> entry fields, and buttons.  What about spin buttons, combo
 JT> boxes, etc?  Is there any good sources such as books,
 JT> examples, etc that anyone could recommend?

Do you have IBM's official PM Reference?  This is a set of files provided
with the Toolkit that are defined with the environment variable
"PMREF" when you install the Toolkit:

SET PMREF=PMFUN.INF+PMGPI.INF+PMHOK.INF+PMMSG.INF+PMREL.INF+PMWIN.INF+PMWKP.INF

 
-- Mike


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