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DDE without a control.

Posted on 2004-08-25
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Last Modified: 2010-05-18
I'm trying to create a class module that encapsulates some dde commands that I use to interact with an older program.  However, I need a control like a label or textbox in order to have dde functionality, and as far as I can tell, these cannot be created through code alone.  Passing a reference to such an object works, but is crufty.  

Is there any way to create one of these objects through code alone?  I know you can add to an existing control array, but I want a completely new instance.  I've tried

Dim something as New Label

which gives the error "Invalid use of New keyword".  

Alternatively, is there a way to use DDE that isn't attached to one of these controls?  I've seen http://www.angelfire.com/biz/rhaminisys/ddclient.html commercial DDE classes that seem to do something similar, so it must be possible.
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Question by:LastToKnow0
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4 Comments
 
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Expert Comment

by:nichia
ID: 11894805
'Adding a control to the form during runtime
Dim myControl As Control
Set myControl = Me.Controls.Add("VB.Label", "myControl")
myControl.Visible = True
myControl.Caption = "DDE Label"
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by:LastToKnow0
ID: 11894926
Is there a way to do this from a class module, or code that is not attached to a form?
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Accepted Solution

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nichia earned 1200 total points
ID: 11895094
As far as I know, there is no way to have a Label or TextBox control reside outside a form.

You may have to use the DDE API to do this.

Here is a reference which I will look at now too:

Perform Interprocess Communication
Using the DDE Management Library

http://www.thescarms.com/vbasic/DDEML.asp
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Author Comment

by:LastToKnow0
ID: 11895229
Oy, that looks complicated.  On the other hand, it seems to do exactally what I need.  Thanks.
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