🚀 go-pugleaf

> It is good use to give the reason(s) then why it is unsufficient.
>
> Please explain in the students newsgroup first why that answer
> is unsufficient. The solution with a TTimer does work.
>
> HAns.

I was told that Close() command cannot be used in a FormActivate event.
The lines below were Remy Lebeau's reply (16th June 2003)

"
You can't close a form from those events, modal or otherwise.  If you need
to close a form when it appears, then you need to either:

1) use a TTimer instead, and call Close() in its OnTimer event

2) call Close() in the OnPaint event, protected by a boolean variable so it
only gets called once (since OnPaint is triggered repeatedly)

3) in the OnShow/OnActivate event, call PostMessage() to post a WM_CLOSE
message to the message queue and the form will process it later on.
"

I chose PostMessage() to close the form because it is the simplest. As I
mentioned before, calling PostMessage()
used to close the form always in another program of mine, but not always
now.
I expected an answer explaining why PostMessage() doesn't work know. Since
you didn't explain
this, I regard the answer to be insufficient.

I also noted that changing mouse coordinates manually or programatically
closes the Form.
I expect an suggestion like adding some kind of message to Windows message
queue before or after
PostMessage((HWND)Handle,WM_CLOSE,0,0); (maybe it is a message related with
the mouse or the keyboard).

 I 'm not going to post the mail to the students newsgroups since it would
be duplicate.
Thanks.