Тема: connectSlotsByName (Прочитано 3307 раз).C++ (Qt). QMetaObject::connectSlotsByName: No matching signal for on_caption_edited(QString).No matching signal! } QMetaObject::connectSlotsByName: No matching signal | Qt… Please suggest on the same. QMetaObject::connectSlotsByName: No matching signal for on_pushButton_2_clicked() QMetaObjectNo matching signal for on_Chekck_Connection_Timer() CUSTOMER_MODE QObject::connect: No such signal QUdpSocket::stateChanged(QAbstractSocket... Why do I get “QMetaObject::connectSlotsByName: No … QMetaObject::connectSlotsByName: No matching signal for on_dlgName_accepted(). Любопытно, что мой слот правильно называется, когда диалогКак я уже говорил выше, сигнал правильно называется мой код все работает отлично, я просто бы действительно очень хотелось, чтобы... SIGNAL SLOT | Форум QMetaObject::connectSlotsByName: No matching signal for on_push_acceptbutton_clicked().Если ручками, то с этим слотом не ассоциированного сигнала, ассоциированный сигнал добавляется, когда подобный слот добавляется в код из графического дизайнера.
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И при этом выскакивает QMetaObject::connectSlotsByName: No matching signal for on_condition_cbox_(int).Если название слота начинается с 'on_', то Qt пытается автоматически найти соответствующий объект и сигнал для этого слота. c++ - QMetaObject::connectSlotsByName: No matching … For menu item there's no signal that would match your slot with one argument, and signal must not have fewer arguments than slot. You can change slot's name so that it won't try to find a matching signal, and use QObject::connect directly instead of QMetaObject:: connectSlotsByName. QMetaObject::connectSlotsByName: No matching signal for… The signal gets sent to the slot. How does this work? I don't know, it should not work if the connect fails.It sees a slot starting with "on_" and tries to find a member and signal that matches the rest. You could rename the slot so that the pattern matching fails, e.g. name it "onActivationModeToggled"...
QMetaObject::connectSlotsByName: No matching signal…
setupUi calls connectSlotsByName which parses the moc_ file in order to connect slots and signals.So, in order to get rid of the “No matching signal for …” warnings, we need to either follow this naming convention, or make sure none of our slot names begin with “on_”.
Signal Slot Connect Example - Public QObject { Q_OBJECT ...
Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal. Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time. Signals and slots can take any number of arguments of any type. Automatic Connections: using Qt signals and slots the easy way this is, we stated the sender object's name, the signal we want to connect, the receiver object's name and the slot to connect the signal to. Now there's an automatic way to connect signals and slots by means of QMetaObject's ability to make connections between signals and suitably-named slots. And that's the key: if we use an appropriate ... QMetaObject::connectSlotsByName: No matching signal for…… -... 每一个你不满意的现在，都有一个你没有努力的曾经。
QMetaObject::connectSlotsByName — Development — Форум
Qt connect problems QMetaObject::connectSlotsByName: No matching signal for on_toolsPreferencesAction_triggered(uint) QMetaObject:: connectSlotsByName: No matching signal for on_preferencesChanged(). All things I tried to fix these failed. Anyone an idea, what the reason... QGIS Plugin Windows - Geographic Information Systems… (Parent is QgsMapCanvas(0x4c6fe28), parent's thread is QThread(0x4ab27b0), current thread is QThread(0x4c18438) Warning: QMetaObject:: connectSlotsByName: No matching signal for on_cbxEnableTopologicalEditingCheckBox_stateChanged(int) Debug: d...
QMetaObject::connectSlotsByName: No matching signal Qt autoconnection mechanism can't find suitable signal to your slot. For menu item there's no signal that would match your slot with one argumentYou can change slot's name so that it won't try to find a matching signal, and use QObject::connect directly instead of QMetaObject:: connectSlotsByName. "QMetaObject::connectSlotsByName: No matching signal for…