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C# COM call with Optional Parameter

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  • R Offline
    R Offline
    rgondzur
    wrote on last edited by
    #1

    I am trying to call an ActiveX DLL written in VB6 from my C# app. The function call has a single parameter that is declared optional. How do I call it from C#? The VB function is: Public Function GetTasks(Optional ByVal lngUserCode As Long) As ADODB.Recordset

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    • R rgondzur

      I am trying to call an ActiveX DLL written in VB6 from my C# app. The function call has a single parameter that is declared optional. How do I call it from C#? The VB function is: Public Function GetTasks(Optional ByVal lngUserCode As Long) As ADODB.Recordset

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      rgondzur
      wrote on last edited by
      #2

      I want to call the function without a parameter so the entire recordset is returned.

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      • R rgondzur

        I am trying to call an ActiveX DLL written in VB6 from my C# app. The function call has a single parameter that is declared optional. How do I call it from C#? The VB function is: Public Function GetTasks(Optional ByVal lngUserCode As Long) As ADODB.Recordset

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        N Offline
        Nick Parker
        wrote on last edited by
        #3

        Check out the Missing Class[^]. - Nick Parker
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