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09.18.2002 at 05:02AM PDT, ID: 20360391
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Calling a method of a user control from a module

Zone: VB Controls
Tags: user, vb, control, calling, module
Hi there

Sorry, i have pretty much no experience in VB so can someone tell me how I can call a method of a usercontrol from a module.

Thanks

AH
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Question Stats
Zone: Programming
Question Asked By: ah7386
Solution Provided By: iPauly
Participating Experts: 2
Solution Grade: A
Views: 38
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09.18.2002 at 05:09AM PDT, ID: 7287955

Rank: Master

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09.18.2002 at 05:12AM PDT, ID: 7287961

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09.18.2002 at 05:23AM PDT, ID: 7287980

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09.18.2002 at 05:25AM PDT, ID: 7287987

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09.18.2002 at 05:38AM PDT, ID: 7288013

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09.21.2002 at 05:12AM PDT, ID: 7295929

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09.21.2002 at 05:17AM PDT, ID: 7295931

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09.22.2002 at 12:33PM PDT, ID: 7297493

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09.18.2002 at 05:09AM PDT, ID: 7287955

Rank: Master

FormName.UserControlName.MethodName

As you are in a module, you need to use the formname first, so for example to call the "MyMethod" method of usercontrol "UC1" sited in form "MyForm1" you would use:

MyForm1.UC1.MyMethod

With any required / or optional parameters as usual.

If you want to always refer to the current form then you can use:

ActiveForm.UC1.MyMethod

Assuming of course that the appropriate usercontrol is sited on this current form.
 
09.18.2002 at 05:12AM PDT, ID: 7287961
Sorry I missed abit out of my original post..

The usercontrol I am working on is Active X, so it wont be sitting on a form.

Any Ideas

Thanks

AH
 
09.18.2002 at 05:23AM PDT, ID: 7287980

Rank: Master

So where will it be sitting? A UserControl by definition is an activeX control, there isn't any other sort. In order to function it has to be sited within a container that supports such controls, examples of these are a form, a picture box, Internet Explorer pages such as html, asp etc and also other applications may allow activeX controls to be sited on them. So your control must be sited somewhere, the key then to solving this particular problem is to determine where your control is sited.
 
09.18.2002 at 05:25AM PDT, ID: 7287987

Rank: Master

Unless I suppose you have instantiated the control in code which is a special case as this involves instantiating the classes exposed by the control rather than the UI that is normally associated with it. In this case you would simply reference the method directly.

MyUserControl.MyMethod

Where you have declared MyUserControl like this:

Dim MyUserControl As Object
Set MyUserControl = CreateObject("MyUC.MyUCtl")
MyUserControl.MyMethod "Test"

Or

Dim MyUserControl As MyUC.MyUCtl
Set MyUserControl = New MyUC.MyUCtl
MyUserControl.MyMethd "Test"

 
09.18.2002 at 05:38AM PDT, ID: 7288013
I need to use the control in Visual Foxpro - its a Tapi control as VFP isnt the best tool for working with API calls

I have a module in Visual Basic that contains all of my API declares and a function that is used by an API call to send messages back into VB

From this module I need to trigger an event on the control so that when I use it in VFP I can place foxpro code in there.

Correct me if im wrong -  module events cannot be accessed when the control is used in Foxpro, Internet explorer etc.


Thanks

 
09.21.2002 at 05:12AM PDT, ID: 7295929
Try this:
Assume your control name is cCtrl.In the module,add a public Let/Get property "theCtrl(nCtrl as cCtrl)". In your Usercontrol,set this property to Me,for example:theCtrl=Me. Then in your module,you can call theCtrl.Raiseevent XXX...
 
09.21.2002 at 05:17AM PDT, ID: 7295931
Addition:
In the module,the property Let/Get should be like this:

Public m_lObj As Long
Public Property Let theCtrl(ByVal nCtrl As cCtrl)
   m_lObj = ObjPtr(nCtrl)
End Property
Public Property Get theCtrl() As cCtrl
   Dim ct As cCtrl
   If (m_lObj <> 0) Then
      CopyMemory ct, m_lObj, 4
      Set theCtrl = ct
      CopyMemory ct, 0&, 4
   End If
End Property
Accepted Solution
 
09.22.2002 at 12:33PM PDT, ID: 7297493
Thanks iPauly

Does the job perfectly!

AH
 
 
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