Bring window to front -> raise(),show(),activateWindow() don’t work

c++ windows winapi qt foreground
Hedge picture Hedge · May 22, 2011 · Viewed 36.6k times · Source

In my Qt-application I open a URL in the default-browser. Afterwards I want to bring the main-window of my application to the front again.

I tried all approaches I could find but none worked. All it does is blink in the taskbar (of Window 7) Here’s an example:

this->viewer->show();
this->viewer->raise();
this->viewer->activateWindow();

*viewer is a pointer to a QmlApplicationViewer which is derived from QDeclarativeView

Answer

iptton picture iptton · May 30, 2012

try this:

viewer.setWindowState( (windowState() & ~Qt::WindowMinimized) | Qt::WindowActive);
viewer.raise();  // for MacOS
viewer.activateWindow(); // for Windows

it work in my project ( in my project viewer is QMainWindow): https://github.com/iptton/Rythem .

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