Connect slots by name no matching signal
QMetaObject::connectSlotsByName: No matching signal
Qt Signals and Slots Olivier Go art October 2013. ... 1 connect(button,SIGNAL ... no matching function for call to ‘QObject:: ... New-style Signal and Slot Support — PyQt 4.12.3 Reference ... New-style Signal and Slot Support ... no_receiver_check=False]]) ¶ Connect a signal to a slot. ... Connecting Slots By Name ... QtWarning QMetaObject::connectSlotsByName: No matching ... Today I noticed that I was getting this warning while running one of my tests1: QtWarning QMetaObject::connectSlotsByName: No matching signal for on_something_event() Support for Signals and Slots — PyQt 5.11 Reference Guide
tuxboot use causes error: QMetaObject::connectSlotsByName: No matching signal for on_frebootbutton_clicked().
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QMetaObject::connectSlotsByName: No matching signal for…
So, in order to get rid of the “ No matching signal for …” warnings, we need to either follow this naming convention, or make sure no ne of our slot names begin with “on_”. If you have a slot, onDoneButton_clicked, for example, connectSlotsByName will no try to connect it with a signal, no r will emit an warning. "QMetaObject::connectSlotsByName: No matching signal for ... QMetaObject::connectSlotsByName: No matching signal for on_MainWindow_destroyed() It means you have an automatically named slot method in the main window or top-level widget. Qt will automatically connect slots for child widgets, but not the top-level widget. To solve this problem, you need to: Rename the slot so it doesn't start with "on_"
Проблема: QMetaObject::connectSlotsByName: No matching signal for on_actionOpen_triggered(const char*) Предупреждение Вам просто нужно изменить имя Slot. Решение Изменить название слота как on_actionOpenTriggered и это предупреждение исчезнет.
QMetaObject::connectSlotsByName: No matching signal ... Slots named as *"on_something** are handled in a special way by QMetaObject which uses It's reflection mechanisms to connect them to the right control and signal. The sintax is actually on_objectName_signal. qt - QMetaObject::connectSlotsByName: No matching signal ...
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