I have a .NET DLL that serves as a wrapper to a 3rd party application. The DLL is registered for COM-Interop as follows:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /tlb /codebase "C:\Dev\1) Source\TAC10_CAD\Lib\PowerPhoneInterface\PowerPhoneInterface.dll"
There are multiple methods in the DLL that are called from VB6. All work perfectly except one. The .NET function prototype for that method is as follows:
int SetAniAli([Optional] string incidentType);
In VB6, I invoke the problematic method as follows:
If GetSettingBitValue("G_POWERPHONE_ENABLE") Then
If CheckPowerPhoneConnection() Then
frmParent_Dispatch.PowerPhoneInterface.SetCallerInformation person,
phone, Callback, Address.FullText
frmParent_Dispatch.PowerPhoneInterface.SetAniAli
rc = frmParent_Dispatch.PowerPhoneInterface.SetAniAli
If rc = 10 Then
PowerPhoneCallInit = True
Else
Call modCAD.SetWarning("Attempt to set ANIALI information failed.")
End If
End If
End If
PowerPhoneInterface is the object reference to my DLL. The first method call (SetCallerInformation) works great. In addition, there are two other DLL calls invoked from the function CheckPowerPhoneConnection that also work great. However, SetAniAli gives a "type mismatch" error every time. I have rc defined as a Long in VB6, but also tried Variant. No success with either.
I have googled until I get blurred vision and cannot seem to find what is wrong with the call.
Any suggestions would be greatly appreciated.