@john14 QWidget::setDisabled(bool disable) or setEnabled(bool) are avialble to any QWidget, including a QDialog. If that is what you are wanting.

@SGaist I don't know how to call it before, now I found using super().paintEvent(arg__1) can solve it.

@hcroope For PyQt question you might ask at: https://riverbankcomputing.com/mailman/listinfo/pyqt

Looks like you installed all your stuff in the base conda environment which is a bad idea. I would recommend re-install conda cleanly and create a proper environment to install PySide2.

@catafest Works great ! Thank you!

You still shouldn't need a workaround. I'd say it's worth a report since it has been working until now.

I highly encourage you to learn the signals and slots paradigm. Qt is an asynchronous framework which means that you may not need an additional thread depending on what you need to process and how you process it. Did they warm you about the nuclear footgun that it can be ? ;-)

@mrjj Thanks I tried the resource system and it works. QFile file(":/python_scripts/script1.py"); file.open(QIODevice::ReadOnly | QIODevice::Text); QString pythonScript = file.readAll();

@Lucien said in Displat Depth image in PyQT4: requires some colors in it (RGB/Mono/Grayscale) which does not fit in Mono and greyscale do not have colors, so don't know what the problem is... "QImage::Format_Mono 1 The image is stored using 1-bit per pixel. Bytes are packed with the most significant bit (MSB) first.". "QImage::Format_Grayscale8 24 The image is stored using an 8-bit grayscale format. (added in Qt 5.5) QImage::Format_Grayscale16 28 The image is stored using an 16-bit grayscale format. (added in Qt 5.13)"

@andre_sophia Glad it solved. Yes, in the normal course do all your connect()s in the __init__(), after the setupUi(), so it's just once.

I have never used QVideoWidget, but based on some prior experience with different GUI frameworks, I would caution that your results may vary by operating system, and by whatever underlying video playback engine is ultimately responsible for getting the video pixels on the screen. I tried to do something like this a while ago, and on one platform the text window (a transparent window with opaque text) that I tried to place on top of the video window worked just fine. On another platform the text was barely noticeable. You could only notice it flicker into view occasionally, like some kind of subliminal messaging. I believe the reason for the unwanted "flicker behavior" on that system was due to the video engine constantly writing directly to the video card, bypassing any attempts at layering/compositing.

I installed it using pip pip install pyside2 I'm on windows using python 3.7

LD_PRELOAD=/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Concurrent.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Core.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5DBus.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Gui.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Network.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5OpenGL.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Positioning.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5PrintSupport.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Sql.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Svg.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Widgets.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5XcbQpa.so:/home/david/.local/lib/python3.7/site-packages/ccdc/_lib/libQt5Xml.so python3.7 Python 3.7.8 (default, Jul 20 2020, 18:03:39) [GCC 10.1.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import ccdc >>> Worked like magic. 😲 Thanks a lot, @SGaist !

@Kyeiv OK, but please put the error checking code in anyway. With OS commands you never know what might go wrong (just like you discovered), so it's important to check for & report all errors! And especially if you are going to be distributing this....

@VOLFRAMHERO Did you add self.pushButton.clicked.connect(self.shift) to setupUi? Also, you should remove that line from shift().

@SoleyRan Trying to read through those two lines not presented in code tags here, seems to me they are the same.

Thanks for the links !

So, if you can set the font size in points and only use those available in Notepad's list of sizes you should be ok.

I've got a bit further than yesterday with this issue. I went back to the example on this website: http://quabr.com:8182/59438021/how-do-i-create-a-print-preview-of-qwebengineview-in-pyqt5 The problem has to do something with: printer = QPrinter(QPrinter.HighResolution) When I use QPrinter() without the HighResolution part, everything works as expected. I didn't realise that the example had the same problem since it calls the printPreview method which doesn't have the resolution part. Is this a bug in (Py)Qt? Since my problem is fixed, I'm will mark it as solved.

@Sebastian1993 You have chosen to use a QListWidget: QListWidget is a convenience class that provides a list view similar to the one supplied by QListView, but with a classic item-based interface for adding and removing items. QListWidget uses an internal model to manage each QListWidgetItem in the list. For a more flexible list view widget, use the QListView class with a standard model. It has its own internal model, and you have to use that. This approach will require copying data between its model and a representation you might make in your own code, where as @Denni-0 says you may prefer to do your list manipulation. If you used a QListView you could set its model to, say, a QStringListModel. That is within the Qt domain. Or, you could supply a custom model and behaviour in Python code.