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Converting void pointer to qstring

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  • K Offline
    K Offline
    kitten
    wrote on last edited by
    #5

    i know the qapp pointer is globally accessible but argv and argc is'nt argumens of my main functions
    i should write my code like this to more understand:
    @void func(const QString &gg,int argc,void *argv)
    {
    String paramlist;
    VARIANT params = (VARIANT)argv;
    for (int a = argc-1; a >= 0; --a) {
    if (a == argc-1)
    paramlist = QLatin1String(" - {");
    QVariant qvar = VARIANTToQVariant(params[a], 0);
    paramlist += QLatin1String(" ") + qvar.toString();
    if (a > 0)
    paramlist += QLatin1String(",");
    else
    paramlist += QLatin1String(" ");
    }
    if (argc)
    paramlist += QLatin1String("}");
    }@

    www.kitten.mihanblog.com

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    • G Offline
      G Offline
      goetz
      wrote on last edited by
      #6

      How should we know the problem? We do not even know what's behind your void pointer, not to mention what your VARIANT type is nor the VARIANTToQVariant and how it is organized.

      Oh, and your code would be much more readable, if you would use proper indenting. I would not find a bug in that mess either.

      http://www.catb.org/~esr/faqs/smart-questions.html

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      • K Offline
        K Offline
        kitten
        wrote on last edited by
        #7

        i know the void arguments is an integer but it get me error

        www.kitten.mihanblog.com

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        • G Offline
          G Offline
          goetz
          wrote on last edited by
          #8

          Bravo! Now we know exceptionally more and can solve your problem...

          Sorry, for being sarcastic, but do your really expect that we can comment on your problem with that much information you gave us? Did you try yourself using a debugger and stepping through the code?

          http://www.catb.org/~esr/faqs/smart-questions.html

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          • G Offline
            G Offline
            giesbert
            wrote on last edited by
            #9

            If yoiu areguments are integers, why do you cast them to VARIANT pointers? Are you talking about COM VARIANTS? If yes, it seams, you don't know their structure, they are not integers.

            Nokia Certified Qt Specialist.
            Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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            • K Offline
              K Offline
              kitten
              wrote on last edited by
              #10

              yes it is a com variants
              what should i do?

              www.kitten.mihanblog.com

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              • G Offline
                G Offline
                giesbert
                wrote on last edited by
                #11

                That depends.
                I have no idea how your input looks like.,
                If it is ints, don't cast them to VARIANT!

                Nokia Certified Qt Specialist.
                Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                • A Offline
                  A Offline
                  andre
                  wrote on last edited by
                  #12

                  You can only savely cast to a known data structure. If you don't have access to that structure (for instance by including a header describing the structure), there is no save way to cast to anything. So: find out what the input data is, and how it is represented. Only then start thinking about casting to it.

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                  • K Offline
                    K Offline
                    kitten
                    wrote on last edited by
                    #13

                    the documentation says it is a integer but
                    for example when it should send me 99 it get me 206
                    and when it should send me 200 it get me 63
                    i don't know what does it mean

                    www.kitten.mihanblog.com

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                    • G Offline
                      G Offline
                      giesbert
                      wrote on last edited by
                      #14

                      We have no idea which program sends you messages and how to interpret them.
                      Contact the one who wrote it.

                      Nokia Certified Qt Specialist.
                      Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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