Detecting open forms

[Raoul Watson]

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

[Karl E. Peterson]

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?
--

[Ralph]

"Raoul Watson" <Wa*****@IntelligenCIA.comwrote 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

[Raoul Watson]

Thanks Karl & Ralph for a good alternative..