I have a form which should not be opened concurently with another form. Is
there a way to detect if a form is already open? I cannot use the statement:

If Form1.Visible = True then ..

because this statement actually will LOAD Form1 which is not what I want to
do.

I can of course use a global variable as a flag to indicate a form is open
and reset the flag on form unload and simply test for this flag, but any
alternative or idea is greatly appreciated.

Thanks and God Bless.
_Raoul

Raoul Watson wrote:
> I have a form which should not be opened concurently with another
> form. Is there a way to detect if a form is already open? I cannot
> use the statement:
>
> If Form1.Visible = True then ..
>
> because this statement actually will LOAD Form1 which is not what I
> want to do.
>
> I can of course use a global variable as a flag to indicate a form is
> open and reset the flag on form unload and simply test for this flag,
> but any alternative or idea is greatly appreciated.

How's about looping the Forms collection, and looking for identifiable
characteristics?
--

"Raoul Watson" <EMAIL REMOVED> wrote in message
news:B7fXg.3279$HP.1206@trndny08...
> I have a form which should not be opened concurently with another form. Is
> there a way to detect if a form is already open? I cannot use the
statement:
>
> If Form1.Visible = True then ..
>
> because this statement actually will LOAD Form1 which is not what I want
to
> do.
>
> I can of course use a global variable as a flag to indicate a form is open
> and reset the flag on form unload and simply test for this flag, but any
> alternative or idea is greatly appreciated.
>

I rather prefer Karl's suggestion, but an alternative is to have each Form
define a common Mutex. Each form checks the Mutex on loading, if already
defined it exits.

-ralph

Thanks Karl & Ralph for a good alternative..