89f7a2759c
Instead of QCoreApplication::quit() directly calling exit(0), which would leave QGuiApplication and client code out of the loop, we now send the Quit event, and let it pass through event delivery, before finally ending up in QCoreApplication::event(), where we call exit(0). This has the advantage that QGuiApplication can ensure all windows are closed before quitting, and if any of those windows ignore the close event the quit will be aborted. This aligns the behavior of synthetic quits via QCoreApplication::quit() with spontaneous quits from the platform via QGuiApplicationPrivate::processApplicationTermination. Clients who wish to exit the application without any event delivery or potential user interaction can call the lower level exit() function directly. [ChangeLog][QtGui] Application termination via qApp->quit() will now deliver Quit events to the application, which in turn will result in application windows being closed as part of the application quit, with an option to cancel the application quit by ignoring the close event. Clients who explicitly want to exit the application without any user interaction should call QCoreApplication::exit() explicitly. Task-number: QTBUG-45262 Task-number: QTBUG-33235 Task-number: QTBUG-72013 Task-number: QTBUG-59782 Change-Id: Id4b3907e329b9ecfd936fe9a5f8a70cb66b76bb7 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io> |
||
|---|---|---|
| .. | ||
| application | ||
| dockwidgets | ||
| mainwindow | ||
| mdi | ||
| menus | ||
| sdi | ||
| CMakeLists.txt | ||
| mainwindows.pro | ||
| README | ||
All the standard features of application main windows are provided by Qt. Main windows can have pull down menus, tool bars, and dock windows. These separate forms of user input are unified in an integrated action system that also supports keyboard shortcuts and accelerator keys in menu items. Documentation for these examples can be found via the Examples link in the main Qt documentation.