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. Problem with slots
Qt 6.11 is out! See what's new in the release blog

Problem with slots

Scheduled Pinned Locked Moved General and Desktop
8 Posts 3 Posters 3.6k 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.
  • K Offline
    K Offline
    kitten
    wrote on last edited by
    #1

    hi to every one
    i have a mainwindow class that inherited from qmainwindow
    and i have another class named class2 that inherited from qdialog;
    and in my mainwindow class i redefine my class2 with this code
    class2 en = new class2(this);
    on class2 i have a qpushbutton named button1;
    i wrote this code in my class2 constructor to use slot

    @
    connect(ui.button1,SIGNAL(clicked()),this,SLOT(this->adddatabase()));
    @

    and i add adddatabase() function to my private slots
    but when i click on button1 it does'nt run adddatabase() function
    what is my problem?

    [EDIT: code formatting, please wrap in @-tags, Volker]

    www.kitten.mihanblog.com

    1 Reply Last reply
    0
    • G Offline
      G Offline
      goetz
      wrote on last edited by
      #2

      remove "this->" from the SLOT():

      @
      connect(ui.button1, SIGNAL(clicked()), this, SLOT(adddatabase()));
      @

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

      1 Reply Last reply
      0
      • M Offline
        M Offline
        mrtc3
        wrote on last edited by
        #3

        to late ;)

        <how can I delete posts?>

        There are 10 types. Those who understand binary and those who don't .)

        1 Reply Last reply
        0
        • G Offline
          G Offline
          goetz
          wrote on last edited by
          #4

          [quote author="mrtc3" date="1312892166"]to late ;)

          <how can I delete posts?>[/quote]

          I don't know if that's possible for non-moderators.

          Anyways, it does not hurt to have doubled answers. I consider it an advantage and a proof of an active community :-)

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

          1 Reply Last reply
          0
          • K Offline
            K Offline
            kitten
            wrote on last edited by
            #5

            i remove this but it does'nt change anything and my aadddatabase() function does'nt run

            www.kitten.mihanblog.com

            1 Reply Last reply
            0
            • M Offline
              M Offline
              mrtc3
              wrote on last edited by
              #6

              [quote author="Volker" date="1312892535"]I consider it an advantage and a proof of an active community :-)[/quote]
              So answers are welcome, and I can train my Qt skills ;)

              kitten: adddatabase() must be declared as a slot in your header file.

              @
              private slots:
              void adddatabase();
              @
              and if its derived from QDialog the Q_OBJECT macro should be set.

              There are 10 types. Those who understand binary and those who don't .)

              1 Reply Last reply
              0
              • K Offline
                K Offline
                kitten
                wrote on last edited by
                #7

                when i add Q_Object macro on my project it get me this eror:
                1>------ Build started: Project: finger, Configuration: Debug Win32 ------
                1>Moc'ing enroll.h...
                1>moc: Too many input files specified
                1>Usage: moc [options] <header-file>
                1> -o<file> write output to file rather than stdout
                1> -I<dir> add dir to the include path for header files
                1> -E preprocess only; do not generate meta object code
                1> -D<macro>[=<def>] define macro, with optional definition
                1> -U<macro> undefine macro
                1> -i do not generate an #include statement
                1> -p<path> path prefix for included file
                1> -f[<file>] force #include, optional file name
                1> -nw do not display warnings
                1> @<file> read additional options from file
                1> -v display version of moc
                1>Project : error PRJ0019: A tool returned an error code from "Moc'ing enroll.h..."
                1>Build log was saved at "file://c:\Users\sazgar\Documents\Visual Studio 2008\Projects\finger\finger\Debug\BuildLog.htm"
                1>finger - 1 error(s), 0 warning(s)
                ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

                www.kitten.mihanblog.com

                1 Reply Last reply
                0
                • M Offline
                  M Offline
                  mrtc3
                  wrote on last edited by
                  #8

                  I guess "this":http://developer.qt.nokia.com/forums/viewthread/1951I is wide spread: moc it manually again "moc.exe enroll.h -o moc_enroll.cxx" and add that *.cxx to your project (Add --> Existing Item..). This worked when I had this problem.

                  There are 10 types. Those who understand binary and those who don't .)

                  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