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C++ Reference in QtCreator help

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  • L Offline
    L Offline
    lyuts
    wrote on last edited by
    #4

    I just added your qch file to Qt Creator's help via Tools->Options->Help->Documentatioin tab, pressed F1, and got cpp reference. Try to check Filters tab, there should be corresponding items checked for cpp reference.

    I'm a rebel in the S.D.G.

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    • P Offline
      P Offline
      pavko
      wrote on last edited by
      #5

      I mean, that it doesn't work in text editor. For example, when you point on keyword (something like "void") pressing F1 - I want, that on the right side help about "void" apears. It doesn't works.

      So, I can't find solution to make CONTEXT help possible. I don't know how to turn it on with my compiled file.

      Anyway - thanks for help :)

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      • L Offline
        L Offline
        lyuts
        wrote on last edited by
        #6

        Sorry, I just misunderstood the original issue.

        I'm a rebel in the S.D.G.

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        • B Offline
          B Offline
          baysmith
          wrote on last edited by
          #7

          Do you have a C++ project open? It appears to me that Qt Creator may not scan the source files for symbols unless a C++ project is open.

          Have you restarted Qt Creator? I have also found that sometimes Qt Creator needs to be restarted after the qch is registered with it.

          Nokia Certified Qt Specialist.

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          • P Offline
            P Offline
            pavko
            wrote on last edited by
            #8

            Yes, I did this. Actualy I mean context help, like in "this post":http://qtcreator.blogspot.com/2009/07/context-sensitive-help.html

            Content and index are working fine.

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            • B Offline
              B Offline
              baysmith
              wrote on last edited by
              #9

              The hover-and-hit-F1 context help works for me with the Qt Creator snapshot from Jun 7 (from revision b4bf0289b1, for Windows). If I hover-F1 over #include <algorithm>, it pulls up the algorithms page. If I hover-F1 over #include <vector>, it pulls up the vector page. If I hover over #include <numeric>, it does not work (probably because there is no numeric keyword in the index). The context help has been somewhat problematic, but it has been getting more reliable over time. I find recent development builds work more often than not.

              Nokia Certified Qt Specialist.

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              • T Offline
                T Offline
                tobias.hunger
                wrote on last edited by
                #10

                bradley: We try not to break creator, but sometimes something does slip through... having said that: Most of the people working on qt creator do so using creator from the branch they work on, so we do tend to notice most breakages:-)

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                • F Offline
                  F Offline
                  floridaboy
                  wrote on last edited by
                  #11

                  I tried with Qt Creator 2.0.1 and yes, the context help does not work. I did not debug the Qt Creator, but STL reference (available here: http://developer.qt.nokia.com/wiki/Qt_Creator_Documentation_Gallery) does work in the context mode. This makes me wonder if the context tags were generated correctly when the cppref.qch file was created?

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                  • K Offline
                    K Offline
                    KiaPlayer
                    wrote on last edited by
                    #12

                    I tried "cppref.qch" with Qt Creator 2.0.1. Context help works fine for functions (e.g. abs, ceil, atoi), but doesn't works for keywords (e.g. void, switch, public). But it's good enough :)

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                    • D Offline
                      D Offline
                      dirx
                      wrote on last edited by
                      #13

                      The context help (F1) seems only to work, if the correct #include statement is in the code. I tried "cppref.qch" and also the Linux Man Pages (available here http://developer.qt.nokia.com/wiki/Qt_Creator_Documentation_Gallery) with Qt Creator 2.2.1 and also the latest nightly build of 2.3.
                      Here an example code to test the context help:

                      @#include <QtCore/QCoreApplication>
                      #include <cmath>
                      #include <cstdio>
                      #include <cstdlib>

                      int main(int argc, char *argv[])
                      {
                      QCoreApplication a(argc, argv);
                      abs(10.0);
                      char name[] = "world";
                      FILE *out = fopen( "output.txt", "w" );
                      if( out != NULL )
                      fprintf( out, "Hello %s\n", name );
                      sqrt(12.2);
                      rand();
                      return a.exec();
                      }
                      @

                      For example, for the math functions abs() and sqrt() the context help works only if <cmath> is included and recognized by QtCreator (cmath.h must be in the PATH or in INCLUDEPATH of the *.pro project file). The same behavior for rand() and <cstdlib>. But for printf, fprintf or fopen the context help does not work at all, even with <cstdio>. Also no context help for the keywords.

                      Normally, a context help system should be independent of the syntax parser, i.e. the include files, as it happens often that one would like to know the correct include file for a specific function.

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                      • D Offline
                        D Offline
                        dirx
                        wrote on last edited by
                        #14

                        Same problem for QCoreApplication and its #include statement, as soon as the #include <QtCore/QCoreApplication> statement is commented (//) or removed, "QCoreApplication" change its color and no more context help via F1.
                        So the problem seems to be general for all qch-help files and not only the C++-reference or Linux Man Pages help files. It is a problem of Qt Creator and not the help files or their context tags.
                        I have put a bug-report here:
                        https://bugreports.qt.nokia.com/browse/QTCREATORBUG-5948

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                        • P Offline
                          P Offline
                          pavko
                          wrote on last edited by
                          #15

                          To finalize this thread - you can find cpp reference in qch format here "CPP-reference":http://en.cppreference.com/w/Cppreference:Archives

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                          • T Offline
                            T Offline
                            tobias.hunger
                            wrote on last edited by
                            #16

                            I took the liberty of adding that link to the "Qt Creator documentation gallery":https://qt-project.org/wiki/Qt_Creator_Documentation_Gallery (below the other link to and C++ reference in QCH format;-)

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                            • M Offline
                              M Offline
                              mloskot
                              wrote on last edited by
                              #17

                              Qt Creator 2.8.1 here with "Linux Man Pages Qt Help integrated":http://shinnok.com/rants/2011/07/19/linux-man-pages-integration-with-qt-creator/

                              It runs out something is still not right with recognising the right headers.

                              In this example, F1 for the fabs function works:
                              @
                              #include <math.h>
                              int main()
                              {
                              fabs(-1);
                              }
                              @

                              but in this, F1 for the printf does not work:
                              @
                              #include <stdio.h>
                              int main()
                              {
                              printf("");
                              }
                              @

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