Hello,
i want to use a COM-function who is declared like the following
(IDL)

HRESULT SetPlcData (
   [in] BSTR               bstrPlcString,
   [in] SAFEARRAY(long)    * lPlcMarkers,
   [in] SAFEARRAY(long)    * lPlcDWords );

Since i add a reference to my Studio 2003 Project (c#) to the dll-file
who contains this function the declaration changed to

void SetPlcData(System.String bstrPlcString, System.Array lPlcMarkers,
System.Array lPlcDWords)

That's how the Studio interpret this IDL code; fine.
But when i invoke the function later like this

                Array arrPlcMarkers = null;
                Array arrPlcWords = null;
                               //...fill the arrays with
split-function...

                objPlc.SetPlcData(sParams[2], ref arrPlcMarkers, ref arrPlcWords);

i get the error - "specified array was not of the expected type" !!!
If i invoke it with two long-arrays i can't compile because the
compiler wants two System.Array-types.
I also tried to use a delegate to marshal the parameters - the result
is the same error.

private delegate void MyDelegate(string str,
[MarshalAs(UnmanagedType.SafeArray, SafeArraySubType=VarEnum.VT_I4)]
ref System.Array a, [MarshalAs(UnmanagedType.SafeArray,
SafeArraySubType=VarEnum.VT_I4)] ref System.Array b);

hope you can help me