Hi all,
        My app registers itself with another app to get messages about
what's going on.

I recently added a check box to allow the user to make the application
stay on top. When this check box is checked the application receives
no more messages!

I traced it to the fact that the window handle of the main form (which
is currently processing all the messages) gets changed.

Is there something wrong with saving the old window handle and then
resetting the new window handle to be the old after it has changed? I
can't seem to work out how to do it so if you have any pointers that
would good.

If changing the handle is a bad idea then how can I trap messages sent
to the application handle? (as that doesn't change)

Thanks,

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Go...@goose-soft.demon.co.uk

Angus Herron <an...@goose-soft.demon.co.uk> skrev i en
nyhedsmeddelelse:37a07e0d.11263...@news.demon.co.uk...

That seem reasonably.
The help has this to say about FormStyle:
"Note: It is not advisable to change FormStyle at runtime."

One way of solving the problem could be to send a message to the other app
with the new handle when it changes.

If your just making it always ontop you should use the windows api function
SetWindowPos, because delphi's TForm assumes that you don't even mess with
the handle property.
Put SetWindowPos(Handle,-1,0,0,0,0,SWP_NOMOVE or SWP_NOSIZE);
-Gordy

Thanks! Works perfectly!

    ____
  /    /___ ___ ___ ___
 / ___/   /   / __/ __/
/ /  / / / / /__ / _/
____/___/___/___/___/
Go...@goose-soft.demon.co.uk