I'm using windows7 and Qt5.3.0 I added below to my MainWindow's constructor but nothing shows on my taskbar. Did I miss something?
QWinTaskbarProgress * pTaskbarProgress = new QWinTaskbarProgress(this);
pTaskbarProgress->setMinimum(0);
pTaskbarProgress->setMaximum(100);
pTaskbarProgress->setValue(50);
pTaskbarProgress->show();
See the example in the documentation:
QWinTaskbarButton *button = new QWinTaskbarButton(widget);
button->setWindow(widget->windowHandle());
button->setOverlayIcon(QIcon(":/loading.png"));
QWinTaskbarProgress *progress = button->progress();
progress->setVisible(true);
progress->setValue(50);
Seems to me like you have to set this as part of a QWinTaskbarButton.