<![CDATA[How to select QTab ? (in C code )]]>After much searching I realized that adding QFrame makes for easy duplicating but it is hard to iterate.

Now I have this simple code iterating all QTab...

But I cannot figure out How to activate / select specific QTab.

    // iterate - show all tab text
    for(int tabIndex = 0; tabIndex < ui->tabWidget_15->count(); tabIndex++)
    { 
        qDebug( ) <<"iterate @ index  " << QString::number(tabIndex);
        qDebug() <<"tab text @ index " << QString::number(tabIndex)<<
                  ui->tabWidget_15->tabText(tabIndex) ;
       // select as  current tab / QWidget 
       //  ui->tabWidget_15->widget(tabIndex)->?????
ui->tabWidget_15->widget(tabIndex)->activateWindow(); // no go
ui->tabWidget_15->widget(tabIndex)->focusWidget();    // no go
ui->tabWidget_15->widget(tabIndex)->setFocus();       // no go
ui->tabWidget_15->widget(tabIndex)->setEnabled(true); // no go 
// TabWidget 
    }
]]>https://forum.qt.io/topic/134864/how-to-select-qtab-in-c-codeRSS for NodeFri, 31 Jul 2026 12:40:34 GMTMon, 07 Mar 2022 03:25:22 GMT60<![CDATA[Reply to How to select QTab ? (in C code ) on Mon, 07 Mar 2022 07:07:09 GMT]]>Thanks for the idea.
Looks convoluted , but works as expected.
ui->tabWidget_15->setCurrentWidget(ui->tabWidget_15->widget(tabIndex));

SOLVED

]]>https://forum.qt.io/post/705408https://forum.qt.io/post/705408Mon, 07 Mar 2022 07:07:09 GMT<![CDATA[Reply to How to select QTab ? (in C code ) on Mon, 07 Mar 2022 06:55:20 GMT]]>I assume that:

  • tabWidget_15 is a QTabWidget
  • with "activate / select" you mean setting the currentIndex of the tabWidget, i.e. determining which tab is being shown.

If that is the case, look here.

const int tabIndexToShow = 42; // or whatever you want
ui->tabWidget_15->setCurrentIndex(tabIndexToShow);

...that should do what you want.

]]>https://forum.qt.io/post/705406https://forum.qt.io/post/705406Mon, 07 Mar 2022 06:55:20 GMT