Form from AxtiveXDLL into MDIForm

[don]

I want to load a form from an ActiveX DLL into my project into my MDIForm.

I can load a form into my project. That works fine but if i set the Activex form to mdichild = true then my project return with an error :

No MDIForm available to load !

Does anyone know how to handle my problem


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Don van Meel
System Developer
Citee Holland

[email protected]



[This message has been edited by don (edited 08-11-1999).]

[ErikKratz]

Don,

The problem occurs because you ActiveX DLL does not include a MDI form. Thus when you load your form in the ActiveX DLL which has its MDIClient an error occurs.

Basically what you want to do is to make your form a MDI_Client at run time. The only solution I could find so far is to use a set of API calls.

For your information an MDI form consist out of two windows. The one your looking for is the MDI_Client Window. (If you need more information on this subject see the Dan Appleman Book on the Win32 API). You need to make your form a client to that Window.

I don't have the exact code on me right now, but I can mail it to if you like. It's about two lines. For now I will give you the procedure.

1) Get handle to the MDI_Client Window use the GetWindow API call

2) Set your forms parent to the MDI_Client window with the SetParent API call

Your window is now part of the MDI form. However it will behave somewhat different when maximizing the form.

I hope this was a little bit helpful,

Regards,

Erik

[Antonio Begue]

in this code:

formA: with text1 and command1
Private Sub Command1_Click()
Form2.Show
End Sub

formB: with command1
Private Sub Command1_Click()
Form1.Text1.Text = "Test"
End Sub

i need to do something like this but without knowing wich form call formb and put "Test" in the form that call the formb

[yiming]

What u trying to do ???

[Antonio Begue]

I want to know which form call a second form

[Gaurav]

U'll need to use the GetParent API call for this.

------------------
Gaurav Mahindra
[email protected]

[izzy4505]

Did anybody ever come up with a solution to this? I have an MDI child form loaded in an ActiveX dll. I'd like to pop this form up within an MDI form in the host application, but I get the exact same error. VB6. Thanks!