Top "Signals-slots" questions

Signals and slots is a mechanism for implementing the observer pattern.

Qt issue passing arguments to slot

I can't seem to pass an argument to a slot. If I don't pass an argument, the function rolls through …

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Qt: meaning of slot return value?

According to the documentation the return value from a slot doesn't mean anything. Yet in the generated moc code I …

c++ qt signals-slots
waiting for a signal

I am working on an application which uploads the content of the file to server. To upload the file to …

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Sending signal from static class method in Qt

I am trying to code a static callback function that is called frequently from another static function within the same …

c++ qt static callback signals-slots
Qt signals and slots: permissions

There are discrepancies between respected answers here on SO and the actual Qt docs. I've read this question and I …

c++ qt inheritance signals-slots qt-signals
Qt Signals and Slot connected twice... what happens?

What happens if the same signal and slot is connected twice? How is the mechanism handled?

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Event loops and signal-slot processing when using multithreading in Qt

I've been having some problems with using QThreads which made me explore different combinations before I've found the right one. …

c++ multithreading qt event-loop signals-slots
My signal / slot connection does not work

I repeatedly see people having problems with slots not being called. I would like to collect some of the most …

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Qt signals & inheritance question

I am relatively new to programming with Qt and had a question. Short version: How do I inherit signals defined …

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How to pass arguments to callback functions in PyQt

I have around 10 QAction (this number will vary in runtime) in a toolbar, which all will do same thing, but …

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