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Change background color of QPushButton at runtime

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  • T Offline
    T Offline
    t0msk
    wrote on last edited by
    #1

    Hello, I need to change a background color of QPushButton during execution, so I created this StyleSheet:

    QPushButton {
    	background-color:rgb(255, 255, 255);
    	font-weight:bold;
    	font-size:24px;
    	color:#000;
    }
    
    *[class=active] {
    	background-color:rgb(255, 0, 0);
    	font-weight:bold;
    	font-size:24px;
    	color:#000;
    }
    

    and in code I call:

    ui->pushButton_Click->setProperty("class", "active");
    

    But it works only if it is in

    MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
    

    function, if I call it in my custom function it doesn't work.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Are you applying the technique described in this Wiki entry ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      T 2 Replies Last reply
      2
      • SGaistS SGaist

        Hi,

        Are you applying the technique described in this Wiki entry ?

        T Offline
        T Offline
        t0msk
        wrote on last edited by
        #3
        This post is deleted!
        1 Reply Last reply
        0
        • SGaistS SGaist

          Hi,

          Are you applying the technique described in this Wiki entry ?

          T Offline
          T Offline
          t0msk
          wrote on last edited by
          #4

          @SGaist thank you so much, it works, I forgot to use unpolish and polish.

          1 Reply Last reply
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