I don't see what is the problem, but I would like to point out that the tutorial you are using is rather outdated. I suggest you look at the tutorials in Qt 4.7 ... qt - undefined reference to `vtable for myObj' in qt ... qt - undefined reference to `vtable for myObj' in qt console application - signals and slots. This topic has been deleted. undefined reference .... to custom slot | Qt Forum
Qt Undefined Reference To Signal at 14:09 @Polybos, it could also be defined in TabSprite.h if it's inline. For general discussion and book (c++ gui programming with qt 4, second edition).
I figured out that Qt was having problems with moc files, and there were no moc files being generated. To solve the problem, I specified "moc directory" in the project's .pro file: OBJECTS_DIRI was receiving this error once, when I was trying to add signals & slots to one of my classes. “undefined reference to `vtable for …’ errors” in Qt... |… This happens because moc (Qt’s meta-object compiler) only runs on header files by default (and only on those listed in the HEADERS variable), therefore it did not generate the necessary MOC code for that class. The fix is to simply move the class definition to a header, and make sure it is added to the... QT undefined reference to... 資訊整理 | 電腦資訊007情報站 c++ - Undefined reference in simple Qt program - Stack Overflow You have this in your .h file: public slots: void buttonClickHandler();. It's a method declaration, and it's a Qt slot, so Qt moc will generate code which references it (to call it for connected signals etc). And then linker tries to link...
Mar 4, 2010 ... qt – emit a signal ... The basics of slot(s) and signal(s) with emit(ting) is that a slot is .... undefined reference to `vtable for --- your class name ...
c++ - Undefined reference in simple Qt program - Stack Overflow You have this in your .h file: public slots: void buttonClickHandler();. It's a method declaration, and it's a Qt slot, so Qt moc will generate code which references it (to call it for connected signals etc). And then linker tries to link...
Имеется Qt_5_3_MinGW_32bit, Windiws 7 64bit. Работаю в графическом приложении QT. В хэдере (mainwindow.h) обявлено следующее:private: QString image_path; void separateImage(char* path_to_image); Далее при нажатии на кнопкуПоэтому и возникает undefined reference.
Home Qt Development General and Desktop undefined reference ..Reply Quote 0 0 qt signal slot undefined reference Replies Last reply samopn last edited by Haha, you aztec riches online casino could be right about doing VB in C++ ..
Механизм сигналов и слотов - это основная особенность Qt и, вероятно, основная часть Qtкомпилятора, подобные "undefined reference to vtable for LcdNumber", вы, вероятно, забыли запустить mocQt вызовет их оба (в произвольном порядке). public slots: void display(int num)
Undefined reference to 'vtable for myClass' | Qt Forum If your application uses the Qt Mobility libraries, uncomment the following lines and add the respective components to the MOBILITY variable. CONFIG += mobility MOBILITY += The .cpp file which was generated for your project. Feel free to hack it. SOURCES += main.cpp myclass.cpp. Please do not modify the following two lines. Required for deployment. undefined reference to `vtable for myclass' | Qt Forum kshegunov Qt Champions 2017 last edited by @fireghostea My suspicion is because your constructor is inlined, so g++ (which I'm pretty sure you use) doesn't know where to emit the vtable . [Résolu] [Qt] Slot inconnu - undefined reference to
Qt: Signals and slots Error: undefined reference to ... Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and ... [QTBUG-68396] undefined reference to 'a_slot()' in moc_a ... Qt; QTBUG-68396; undefined reference to 'a_slot()' in moc_a_slot.cpp. Log In. Export Qt Signal Slot Undefined Reference - The signature of a ...