Find the source of a WindowDeactivate event
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Hello,
for some reason in my application I am getting a WindowDeactivate event on the mainwindow which is causing it to lose focus.
I am trying to track where it's coming from. For that I installed an event filter on the application and printed the stack but it is the typical event filter stack that doesn't give much information.How can I find the culprit of making my application lose focus?
Regards
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Hello,
for some reason in my application I am getting a WindowDeactivate event on the mainwindow which is causing it to lose focus.
I am trying to track where it's coming from. For that I installed an event filter on the application and printed the stack but it is the typical event filter stack that doesn't give much information.How can I find the culprit of making my application lose focus?
Regards
@allopis
attach with a debugger and inspect the stacktrace at the time the event occurs? -
I can inspect when the event is being processed, by the event loop, but it provides no useful information because I cannot see how it got there. I can see this type of stack when the event is being processed:
module::FocusDebug::eventFilter(QObject*, QEvent*) QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) QApplicationPrivate::notify_helper(QObject*, QEvent*) QApplication::notify(QObject*, QEvent*) module::Application::notify(QObject*, QEvent*) QCoreApplication::notifyInternal(QObject*, QEvent*) QApplication::setActiveWindow(QWidget*) QApplication::x11ProcessEvent(_XEvent*) g_main_context_dispatch ) [0x34c4844d08] g_main_context_iteration QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) QCoreApplication::exec() module::GelApplication::exec() module::main(module::ApplicationCreator&, int, char**) module::main(int, char**)As you can see, the stack can show the information about when the event is being processed but not how it got into the event queue
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I can inspect when the event is being processed, by the event loop, but it provides no useful information because I cannot see how it got there. I can see this type of stack when the event is being processed:
module::FocusDebug::eventFilter(QObject*, QEvent*) QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) QApplicationPrivate::notify_helper(QObject*, QEvent*) QApplication::notify(QObject*, QEvent*) module::Application::notify(QObject*, QEvent*) QCoreApplication::notifyInternal(QObject*, QEvent*) QApplication::setActiveWindow(QWidget*) QApplication::x11ProcessEvent(_XEvent*) g_main_context_dispatch ) [0x34c4844d08] g_main_context_iteration QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) QCoreApplication::exec() module::GelApplication::exec() module::main(module::ApplicationCreator&, int, char**) module::main(int, char**)As you can see, the stack can show the information about when the event is being processed but not how it got into the event queue
@allopis said in Find the source of a WindowDeactivate event:
QApplication::setActiveWindow(QWidget*)
what is the widget paramater here
QApplication::x11ProcessEvent(_XEvent*)
what is the type of the event here
