Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Converting void pointer to qstring
Forum Updated to NodeBB v4.3 + New Features

Converting void pointer to qstring

Scheduled Pinned Locked Moved General and Desktop
14 Posts 5 Posters 9.8k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • sierdzioS Offline
    sierdzioS Offline
    sierdzio
    Moderators
    wrote on last edited by
    #2

    as a side note, you can use "qApp->arguments()":http://developer.qt.nokia.com/doc/qt-4.7/qcoreapplication.html to get an already parsed QStringList of arguments.

    (Z(:^

    1 Reply Last reply
    0
    • K Offline
      K Offline
      kitten
      wrote on last edited by
      #3

      no , the function is'nt my main function
      it is another function

      www.kitten.mihanblog.com

      1 Reply Last reply
      0
      • sierdzioS Offline
        sierdzioS Offline
        sierdzio
        Moderators
        wrote on last edited by
        #4

        the qApp pointer is globally accessible.

        (Z(:^

        1 Reply Last reply
        0
        • 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

          1 Reply Last reply
          0
          • 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

            1 Reply Last reply
            0
            • 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

              1 Reply Last reply
              0
              • 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

                1 Reply Last reply
                0
                • 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)

                  1 Reply Last reply
                  0
                  • 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

                    1 Reply Last reply
                    0
                    • 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)

                      1 Reply Last reply
                      0
                      • 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.

                        1 Reply Last reply
                        0
                        • 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

                          1 Reply Last reply
                          0
                          • 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)

                            1 Reply Last reply
                            0

                            • Login

                            • Login or register to search.
                            • First post
                              Last post
                            0
                            • Categories
                            • Recent
                            • Tags
                            • Popular
                            • Users
                            • Groups
                            • Search
                            • Get Qt Extensions
                            • Unsolved