QDockWidget::toggleViewAction() does not hide/show

[huseyinkozan]

Hi,
I have tried below to show/hide dock widget, but no luck. Am I doing wrong, or found a bug ?

• Open Dock Widget Example at Qt 5.12.3 on Ubuntu 16.04 x64.
• Save pointers to further use:

    // header
    QAction * m_customerAction = nullptr;
    QAction * m_paragraphAction = nullptr;
    QDockWidget * m_customerDock = nullptr;
    QDockWidget * m_paragraphDock = nullptr;
    // source
    m_customerDock = dock;
    m_customerAction = dock->toggleViewAction();
    m_paragraphDock = dock;
    m_paragraphAction = dock->toggleViewAction();
  

• Add toggle code to a function:

  void MainWindow::about()
  {
    // try this
    if ( ! m_customerAction->isChecked())
         m_customerAction->toggle();
    // or try this
    m_customerDock->toggleViewAction()->toggle();
    // or try this
    m_paragraphAction->setChecked(true);
  

• Menu ticks changing, but dock widget does not show/hide

[huseyinkozan]

m_customerDock->hide();
// and
m_customerDock->show();

Works as expected. Sorry for the noise.