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  3. any tips to share on converting Win32 demo application to C#?

any tips to share on converting Win32 demo application to C#?

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csharpgraphicsalgorithmsquestion
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  • S Southmountain

    I have a small Win32 app demo to show some algorithms on drawing 2D geometry. I plan to convert or rewrite it in C# because I like to use this algorithm in my WinForm app. any tips to share? it seems a little daunting to me...

    diligent hands rule....

    CPalliniC Offline
    CPalliniC Offline
    CPallini
    wrote on last edited by
    #2

    I guess (I'm not an expert) going from Win32 to Windows Forms is far easier than the opposite. GDI+ is rather user-friendly, in my opinion.

    "In testa che avete, Signor di Ceprano?" -- Rigoletto

    In testa che avete, signor di Ceprano?

    S 1 Reply Last reply
    0
    • S Southmountain

      I have a small Win32 app demo to show some algorithms on drawing 2D geometry. I plan to convert or rewrite it in C# because I like to use this algorithm in my WinForm app. any tips to share? it seems a little daunting to me...

      diligent hands rule....

      M Offline
      M Offline
      megaadam
      wrote on last edited by
      #3

      My tip: do not.

      "If we don't change direction, we'll end up where we're going"

      O 1 Reply Last reply
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      • M megaadam

        My tip: do not.

        "If we don't change direction, we'll end up where we're going"

        O Offline
        O Offline
        obermd
        wrote on last edited by
        #4

        I concur. If you must redo this demo as a C# application, write it from the ground up in C#. You'll end up with a more efficient application than if you do a straight conversion.

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        • O obermd

          I concur. If you must redo this demo as a C# application, write it from the ground up in C#. You'll end up with a more efficient application than if you do a straight conversion.

          S Offline
          S Offline
          Southmountain
          wrote on last edited by
          #5

          yes, I plan to go through the code and understand the logic, then rewrite it...

          diligent hands rule....

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          • CPalliniC CPallini

            I guess (I'm not an expert) going from Win32 to Windows Forms is far easier than the opposite. GDI+ is rather user-friendly, in my opinion.

            "In testa che avete, Signor di Ceprano?" -- Rigoletto

            S Offline
            S Offline
            Shao Voon Wong
            wrote on last edited by
            #6

            I second you. C++ GDI+ and C# GDI+ are very similar, one-to-one function replacement. I ported my [Outline Text](https://www.codeproject.com/Articles/42529/Outline-Text) from C++ to C# in one day.

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            • S Southmountain

              yes, I plan to go through the code and understand the logic, then rewrite it...

              diligent hands rule....

              R Offline
              R Offline
              Ron Anders
              wrote on last edited by
              #7

              What's it written in now? Or, do you wish this to be a web app and hence C#?

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              • S Southmountain

                I have a small Win32 app demo to show some algorithms on drawing 2D geometry. I plan to convert or rewrite it in C# because I like to use this algorithm in my WinForm app. any tips to share? it seems a little daunting to me...

                diligent hands rule....

                M Offline
                M Offline
                Member 9167057
                wrote on last edited by
                #8

                Depends on the language the original was written in as well as how well-structured it is. I would go about this by first and foremost separating business logic from plumbing. Then, by mapping the APIs used in the business logic part to .NET parts. While P/Invoking them is certainly feasible, that's only advised if the goal is defined as sticking as close as possible to the original and/or there's no corresponding .NET APIs.

                S 1 Reply Last reply
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                • S Southmountain

                  I have a small Win32 app demo to show some algorithms on drawing 2D geometry. I plan to convert or rewrite it in C# because I like to use this algorithm in my WinForm app. any tips to share? it seems a little daunting to me...

                  diligent hands rule....

                  M Offline
                  M Offline
                  MikeCO10
                  wrote on last edited by
                  #9

                  Not sure how we can answer that without knowing what language is it written in now?

                  S 1 Reply Last reply
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                  • S Southmountain

                    I have a small Win32 app demo to show some algorithms on drawing 2D geometry. I plan to convert or rewrite it in C# because I like to use this algorithm in my WinForm app. any tips to share? it seems a little daunting to me...

                    diligent hands rule....

                    S Offline
                    S Offline
                    Shmoken99
                    wrote on last edited by
                    #10

                    Ctrl+C Ctrl+V then start fixing the compiler errors. Converted an ancient app to C#. The biggest problem was changing all the 1 based indexes to 0 based. Wrote unit tests in both languages to ensure consistent behavior.

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                    • M MikeCO10

                      Not sure how we can answer that without knowing what language is it written in now?

                      S Offline
                      S Offline
                      Southmountain
                      wrote on last edited by
                      #11

                      Win32, written in C++.

                      diligent hands rule....

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                      • M Member 9167057

                        Depends on the language the original was written in as well as how well-structured it is. I would go about this by first and foremost separating business logic from plumbing. Then, by mapping the APIs used in the business logic part to .NET parts. While P/Invoking them is certainly feasible, that's only advised if the goal is defined as sticking as close as possible to the original and/or there's no corresponding .NET APIs.

                        S Offline
                        S Offline
                        Southmountain
                        wrote on last edited by
                        #12

                        thanks for you great experience!

                        diligent hands rule....

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                        • R Ron Anders

                          What's it written in now? Or, do you wish this to be a web app and hence C#?

                          S Offline
                          S Offline
                          Southmountain
                          wrote on last edited by
                          #13

                          Win32, written in C++. would like to convert it into C# WinApp to play around with the algorithms in it,,,

                          diligent hands rule....

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