[solved] undefined reference to 'vtable for ...'
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The above code is running perfectly for me. Couldn't reproduce the issue.
bq. I tried without instanciate Q_OBJECT in the .h file
You need Q_OBJECT macro, so that MOC (meta Object Compiler) will do the necessary to implement signals and slots . Refer "Meta-Object system":http://doc.qt.nokia.com/4.7/metaobjects.html#meta-object-system
Late relpy : i meant the first post.
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Try rebuilding your project (just remove the build directory). It is a moc issue
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Such problems are usually solved by (manually) re-running qmake.
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Oh great, you're right, I deleted the build folder and that's work pretty good !! I don't really know why it doesn't work at the first time, the MOC is the pre-compiled processor instructions ?
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No, moc is the "Meta-Object Compiler":http://doc.qt.nokia.com/latest/moc.html.
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Ok thanks, I just have two more questions ...
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Do you know how can I get some values of a QComboBox (I tried with currentIndex() function and currentText but it doesn't really works...)
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Which project can let me generate an application but without Qt development tool (like .exe and can be ran without problems...)
Anyway, I appreciate your help
PS: I'm a beginner with Qt ...
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- currentIndex() and currentText() is the way to go. If they return invalid data there is most probably no item selected or the combo box is empty.
- Every single Application type (Qt Quick Application, Qt Gui Application, Mobile Qt Application, ...) generates a standalone binary (.exe). But you will have to distribute - as with every other non-Qt application - the "runtime dependencies":http://doc.qt.nokia.com/latest/deployment-windows.html along with your application.
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In addition you can try compiling statically. so that every libraries and dependencies packed into a single executable.
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Thanks a lot guys! You're getting me out of every problems and I appreciate it !!