How can I know that my desired form showing on the screen?

What I want to know is -
My Form is: frmDisplay

If   displaying__frmDisplay then  'what coding  
  Showdata
Else
   Msgbox “……….”
End if

Can someone help me please

You could always have a FormNameVisible Variable (Boolean) on every form, set to True in Form_Load, and False in Form_QueryUnload.

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Thanks JL.

Shahid

Forgot to say this, but I'm sure you know, or will find out soon, the variable has to be Public to ALL of the program (so put it in a module). If it's in the form, it will be unloaded with the form, and trying to reference it will either 1)error, or 2)reload the form.

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Everywhere's Local (classifieds, job postings, & more for everycity in the world - user entered)

just an add-on...

you could use another form to manage these things, you know, unless you're already using an mdi form.

like JL said, if the coding is done an used inside a form that is affected, then might as well use another form to do all of this, like a monitorign form, which can be hidden and active at the same time, so that coding can be cleaner, since you can set reference back and to this form from the others.

hope this data can be useful to you too.  

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Been busy trying to take a second degree <--it's not working out...

Thanks Gen...,

I have done it already as JL said. Well, your idea also pretty. Thanks for help.

Since this is a popular/common topic, I moved it here.

Below is another way of doing it, not resulting to setting variables to true/false. Haven't tested it without a MDI form, but I haven't written many programs that don't use one.

As my other posts, this way is more complex, but allows for expansion. As a note, the "For each" loop in the IsFormVisible is the only thing really required to check for a form being visible.

The way below has one location where the formnames are stored, this way if you do numerous checks, you just need to know what form you're looking for, and not the name of the form. (Makes less chance for typing formname errors). Enter the code in a module, and you'll see what I mean.

' In a MODULE Public Enum eFormNames     FRM_SPLASH     FRM_MAIN     FRM_LOGIN     FRM_ABOUT     FRM_MAXFORMS ' MUST be the last in the list End Enum Public Type tFormNames     FormName() As String End Type Public AllFormNames As tFormNames Option Explicit Private Sub InitForms() ' Call this as soon as the program starts     ReDim AllFormNames.FormName(FRM_MAXFORMS)     With AllFormNames         .FormName(FRM_SPLASH) = "frmSplash"         .FormName(FRM_MAIN) = "frmMain"         .FormName(FRM_LOGIN) = "frmLogin"         .FormName(FRM_ABOUT) = "frm_About"     End With End Sub Private Sub DeInitForms()     Erase AllFormNames.FormName End Sub Public Function IsFormVisible(ByVal FormName As eFormNames) As Boolean     Dim sSearchFor As String     Dim frm As Form          IsFormVisible = False          sSearchFor = LCase(AllFormNames.FormName(FormName))          For Each frm In Forms         If LCase(frm.Name) = sSearchFor Then             IsVisible = True         End If     Next          Set frm = Nothing          Exit Function      Exit Function:     IsFormVisible = False End Function

[Edited by JLRodgers on 14-03-2003 at 03:21 PM GMT]

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Everywhere's Local (classifieds, job postings, & more for everycity in the world - user entered)

Can't he just do this (below)? I haven't tested this.

If frmDisplay.visible=true then   Showdata Else    Msgbox “……….” End if

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By doing that, sometimes it will actually load the form! Well, if it's not loaded, it will load the form. May be just a glitch, but I've had it happen before in programs which lead to some interesting problems.

Edited:
Just checked it, if you have form1 and form2 (neither a MDIChild) you can check with "If form2.visible". If they are MDIChildren, "If form2.visible" will load form2.

[Edited by JLRodgers on 03-04-2003 at 02:19 AM GMT]

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Everywhere's Local (classifieds, job postings, & more for everycity in the world - user entered)

I was assuming tha he meant a non-MDI enabled form, because he did not say otherwise

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for just £74.03 , offer only on until 30th February!

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Enquiries/Sales: 0845 430 9862
Fax: 0870 950 4532

Hi
This is a really late post, but JL is correct ,calling any public property on a form causes VB to load it into ram (anyone else remember the old "Load myform" command?), MS kept it in but hid it.
Just FYI
Kieron


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Build it better, faster, quicker, easier.. then fix it (non-offical MS mission statement)

Thanks a lot for your reply. Actually this post reminded me about this forum. I was bit away from here.

Thank you once again for your reply and i will be here regulary.

SM