delegate calling convention

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  • apm
    #1

    delegate calling convention

    Is there a way to change the calling convention of a delegate to Cdecl? Is
    it possible to define a callback function in C# that used the Cdecl
    convention?

    Thanks in advance.


    Tags: None
    • Nicholas Paldino [.NET/C# MVP]
      #2
      Re: delegate calling convention

      apm,

      You can only do this in .NET 2.0. You can apply the
      UnmanagedFuncti onPointer attribute to the delegate.

      In .NET 1.1 and before, you would have to pass your delegate to an
      unmanaged piece of code which has the signature of the delegate, and pass
      that to your function.

      Hope this helps.


      --
      - Nicholas Paldino [.NET/C# MVP]
      - mvp@spam.guard. caspershouse.co m

      "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
      news:wCgUe.3641 $nq.3584@lakere ad05...[color=blue]
      > Is there a way to change the calling convention of a delegate to Cdecl?
      > Is it possible to define a callback function in C# that used the Cdecl
      > convention?
      >
      > Thanks in advance.
      >[/color]


        Comment

        • apm
          #3
          Re: delegate calling convention


          "Nicholas Paldino [.NET/C# MVP]" <mvp@spam.guard .caspershouse.c om> wrote in
          message news:eNxDNjUtFH A.3720@TK2MSFTN GP14.phx.gbl...[color=blue]
          > apm,
          >
          > You can only do this in .NET 2.0. You can apply the
          > UnmanagedFuncti onPointer attribute to the delegate.
          >
          > In .NET 1.1 and before, you would have to pass your delegate to an
          > unmanaged piece of code which has the signature of the delegate, and pass
          > that to your function.
          >
          > Hope this helps.[/color]

          Thank you. This is what I have done in the past using C++. Can it be done
          with C#?
          [color=blue]
          >
          >
          > --
          > - Nicholas Paldino [.NET/C# MVP]
          > - mvp@spam.guard. caspershouse.co m
          >
          > "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
          > news:wCgUe.3641 $nq.3584@lakere ad05...[color=green]
          >> Is there a way to change the calling convention of a delegate to Cdecl?
          >> Is it possible to define a callback function in C# that used the Cdecl
          >> convention?
          >>
          >> Thanks in advance.
          >>[/color]
          >
          >[/color]


            Comment

            • Willy Denoyette [MVP]
              #4
              Re: delegate calling convention

              No, not in v1.x. All you can do is change your C++ code's calling convention
              to _stdcall (WINAPI), which is the default for callbacks in Win32. Another
              option is to change and reassemble the IL in a post-build step.

              Willy.


              "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
              news:u7kUe.3653 $nq.1829@lakere ad05...[color=blue]
              >
              > "Nicholas Paldino [.NET/C# MVP]" <mvp@spam.guard .caspershouse.c om> wrote
              > in message news:eNxDNjUtFH A.3720@TK2MSFTN GP14.phx.gbl...[color=green]
              >> apm,
              >>
              >> You can only do this in .NET 2.0. You can apply the
              >> UnmanagedFuncti onPointer attribute to the delegate.
              >>
              >> In .NET 1.1 and before, you would have to pass your delegate to an
              >> unmanaged piece of code which has the signature of the delegate, and pass
              >> that to your function.
              >>
              >> Hope this helps.[/color]
              >
              > Thank you. This is what I have done in the past using C++. Can it be
              > done with C#?
              >[color=green]
              >>
              >>
              >> --
              >> - Nicholas Paldino [.NET/C# MVP]
              >> - mvp@spam.guard. caspershouse.co m
              >>
              >> "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
              >> news:wCgUe.3641 $nq.3584@lakere ad05...[color=darkred]
              >>> Is there a way to change the calling convention of a delegate to Cdecl?
              >>> Is it possible to define a callback function in C# that used the Cdecl
              >>> convention?
              >>>
              >>> Thanks in advance.
              >>>[/color]
              >>
              >>[/color]
              >
              >[/color]


                Comment

                • apm
                  #5
                  Re: delegate calling convention


                  "Willy Denoyette [MVP]" <willy.denoyett e@telenet.be> wrote in message
                  news:OL75CJXtFH A.2472@TK2MSFTN GP14.phx.gbl...[color=blue]
                  > No, not in v1.x. All you can do is change your C++ code's calling
                  > convention to _stdcall (WINAPI), which is the default for callbacks in
                  > Win32.[/color]

                  I don't have the source.
                  [color=blue]
                  > Another option is to change and reassemble the IL in a post-build step.[/color]

                  Interesting.
                  [color=blue]
                  >
                  > Willy.[/color]

                  Thank you so much.
                  [color=blue]
                  >
                  >
                  > "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
                  > news:u7kUe.3653 $nq.1829@lakere ad05...[color=green]
                  >>
                  >> "Nicholas Paldino [.NET/C# MVP]" <mvp@spam.guard .caspershouse.c om> wrote
                  >> in message news:eNxDNjUtFH A.3720@TK2MSFTN GP14.phx.gbl...[color=darkred]
                  >>> apm,
                  >>>
                  >>> You can only do this in .NET 2.0. You can apply the
                  >>> UnmanagedFuncti onPointer attribute to the delegate.
                  >>>
                  >>> In .NET 1.1 and before, you would have to pass your delegate to an
                  >>> unmanaged piece of code which has the signature of the delegate, and
                  >>> pass that to your function.
                  >>>
                  >>> Hope this helps.[/color]
                  >>
                  >> Thank you. This is what I have done in the past using C++. Can it be
                  >> done with C#?
                  >>[color=darkred]
                  >>>
                  >>>
                  >>> --
                  >>> - Nicholas Paldino [.NET/C# MVP]
                  >>> - mvp@spam.guard. caspershouse.co m
                  >>>
                  >>> "apm" <Contributor@Ad sorptionProcess Modeling.com> wrote in message
                  >>> news:wCgUe.3641 $nq.3584@lakere ad05...
                  >>>> Is there a way to change the calling convention of a delegate to Cdecl?
                  >>>> Is it possible to define a callback function in C# that used the Cdecl
                  >>>> convention?
                  >>>>
                  >>>> Thanks in advance.
                  >>>>
                  >>>
                  >>>[/color]
                  >>
                  >>[/color]
                  >
                  >[/color]


                    Comment

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