Qt Python Signal Slot
- Qt Designer Python Signal Slot
- Python Qt Signal Slot Example
- Qt For Python Signal Slot
- Python Qt Signal Slot
28 Aug 2011 Matteo Mattei pythonpysideqtthread
A signal is emitted when something of potential interest happens. Python callable. If a signal is connected to a slot then the slot is called If a signal isn’t connected then nothing happens. Signal is being used.
In these days I started studying PySide. After some days spent in reading lot of stuff, I thought that a real example could be useful for who intends to start learning PySide as well. In this example I can show you how you can implement a custom signal (MySignal) together with the usage of threads with QThread.
Qt Designer Python Signal Slot
- Detailed Description ¶ PySide2 adopt PyQt5’s new signal and slot syntax as-is. The PySide2 implementation is functionally compatible with the PyQt5 one, with the exceptions listed below. PyQt5’s new signal and slot style utilizes method and decorator names specific to their implementation.
- I have a number of different signals connected to one slot. Is there any disconnect function that can be used to disconnect everything connected to a specific slot? For example: @QObject::connect(object1, SIGNAL(a), receiver, SLOT(slot)); QObject::con.
- Signals and slots is a language construct introduced in Qt for communication between objects which makes it easy to implement the Observer pattern while avoiding boilerplate code. Rationale against Signal/Slot is detailed in the “Pattern”.
The following code creates a window with two buttons: the first starts and stop a thread (MyThread) that runs a batch that prints a point in the stdout every seconds continuously. The second button lets you only start another thread (MyLongThread) that prints an asterisk in the stdout every second for 10 seconds.
This example uses the api version 2 (introduced with PyQt 4.5) to connect signals to slots.
For more information you can look at:
- QThread documentation: http://doc.qt.nokia.com/latest/qthread.html
- PySide signals and slots: http://developer.qt.nokia.com/wiki/Signals_and_Slots_in_PySide
- PyQt api 2 on PySide: http://www.pyside.org/docs/pseps/psep-0101.html
Python Qt Signal Slot Example
DisqusQt For Python Signal Slot
