CreatObject in C#

[DennisBetten]

Hello,

I'm re-writing a VB6 DLL to C#.

The translation is complete and everything works fine, accept the most crucial part.

The VB6 DLL communicates with a remote machine with a CreateObject(..,..) function. It sends an XML(string) and receives an answer from it, also as an XML(string):

Dim objComponent As Object
Dim strXMLOut As String

' get message from MQ
Set objComponent = CreateObject("PMQAccessData.cGetMQData", "NT101")
strXMLOut = objComponent.fGetMQData(strXMLIn, strProject)

In C# I tried the following code, but oType stays null :

Type oType = Type.GetTypeFromProgID("PMQAccessData.cGetMQData", "NT101");
object o = System.Activator.CreateInstance(oType);
strXMLOut = (string)oType.InvokeMember("fGetMQData", System.Reflection.BindingFlags.InvokeMethod, null, o, new object[] { strXMLIn, strProject });

Does anyone have any idea how to tackle this problem?

Thanx! Dennis

[Plater]

I don't know what PMQAccessData is, but it sounds like a custom object. Can you just instanciate it as normal?
Where is the definition of this object stored (in a dll or something)?
You may need to use DLLImport?

[DennisBetten]

I think PMQAccessData is a DLL running on a remote server (NT101) and the CreateObject methode retreives information by accessing the registry(?) on the remote server.

Unfortunatly I cannot access the remote machine to confirm this.

Is it posible to access a DLL on a remote machine by using DLLImport?

[Plater]

I am not sure aout remote DLLImport calls.

You might have to ask someone with stronger VB knowledge to explain better what was going on? (If they can)