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QueryInterface in managed code

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csharpc++databasecomsysadmin
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  • L Offline
    L Offline
    lafleon
    wrote on last edited by
    #1

    Hello, I need to use COM server in VC++.NET 2003 managed code. After using Tlbimp.exe to generate runtime callable wrapper I can use operator new to create instance of MyClass. What do I need to do to query another COM interface from this instance? In regular unmanaged code I just need to call ::CoCreateInstance(…) and QueryInterface(…). What do I need to call in managed code instead? Please help!!! Regards, Leonid

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    • L lafleon

      Hello, I need to use COM server in VC++.NET 2003 managed code. After using Tlbimp.exe to generate runtime callable wrapper I can use operator new to create instance of MyClass. What do I need to do to query another COM interface from this instance? In regular unmanaged code I just need to call ::CoCreateInstance(…) and QueryInterface(…). What do I need to call in managed code instead? Please help!!! Regards, Leonid

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      Lost User
      wrote on last edited by
      #2

      lafleon wrote:

      What do I need to do to query another COM interface from this instance?

      Can you just call QueryInterface on the instance or can you cast the pointer you got back from the new operator?

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      • L Lost User

        lafleon wrote:

        What do I need to do to query another COM interface from this instance?

        Can you just call QueryInterface on the instance or can you cast the pointer you got back from the new operator?

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        L Offline
        lafleon
        wrote on last edited by
        #3

        It’s my question. Do you have any code samples? Regards, Leonid

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        • L lafleon

          It’s my question. Do you have any code samples? Regards, Leonid

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          L Offline
          Lost User
          wrote on last edited by
          #4

          Nope, I am sugesting these are things you can try yourself

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