Language Bindings

@SGaist said in How i can check if char is '\'?:

To add to @JonB: file_ += char would be even cleaner.

I left it using the literal rather than the "variable", as it's not obvious from the context whether OP really wants the same char he's testing for appended or always a \, if you see what I mean!

Hi,

What résolution are you expecting ?

A quick google search with PyQt5 layout gives that nice article.

Well... Then you can translate the example from the class detailed documentation in Python and you have a minimal video player.

@jazzycamel said in Picamera significant delay and low FPS, but low CPU and memory usage:

Thanks this worked i also changed the camera parameters so it runs even faster.

self._camera=PiCamera(sensor_mode=4,resolution='640x480',framerate=40).

Now the only problem is when i try to capture using the worker thread is not responding to the signal ,this is also happening with the stop function its not responding to a button click or custom emit signal to stop the camera it just keeps running

@pyqtSlot() def snapshot(self): self._looping=False self._camera.capture('image.jpg') self._looping=True stopcamera = pyqtSignal() self._thread = QThread() self.stopcamera.connect(self._camera.stop) self._thread.start() self.CameraSnap.clicked.connect(self._camera.snapshot) self.CameraBack.clicked.connect(self.functionstopcamera) def functionstopcamera(self): self.stopcamera.emit()

@Dl10

Hi
I think it exists

https://www.youtube.com/watch?v=Dmo8eZG5I2w

There you just place 4 qframes on center mainwindow
Then right click (not on frames) and from layout menu
select Grid layout

@SGaist Thanks for the reply. It has the same behavior in the MATE desktop environment. So far I've also tried in Unity and Gnome 3.0 as well.

@Dl10
You may split the function and start a timer.. something like..
from :

testFunction(){ step1.. step2.. time.sleep().. step3.. }

to

testFunction(){ step1.. step2.. qtimer t; connect(&t,SIGNAL(timeOut()),this,SLOT(testFunction2())); t.start(2000); } testFunction2(){ step3... }

PS: Syntax may vary.. this is a c++ code.. please convert it to pyqt5.. Hope this is what you are expecting...
and thats what i understood from your post...

Hi and welcome to devnet,

What slider are you talking about ?

Well, for right or for wrong architecturally, I ended up writing a function (Python, but you get the drift :) ):

def findMainWindow() -> typing.Union[QMainWindow, None]: # Global function to find the (open) QMainWindow in application app = QApplication.instance() for widget in app.topLevelWidgets(): if isinstance(widget, QMainWindow): return widget return None

No Python global variables --- which I now understand, are about as "global" as the parochial village I live in, are misnamed really, and are brain-dead in the way they work :)

@jazzycamel That worked! How would I load a UI file in the Widget class? I tried using uic.loadUI(), but that seems to override the previous gui.

hmmm....
right but i thing not in analog input/output.

@JNBarchan it's being worked on. Getting something like that back up to date takes time. It was left behind for a long time.
I mentioned it, as it will at some point be an option.

Yeah i feel like i do sudo apt-get update && upgrade at least once a day. I just checked about SIP and i compiled it from source but i cant remember if i actually used the command make and make install. Does that mean i have to reinstall pyqt5 again? I guess i just open a new thread. Thanks for all the help @SGaist

Hi @J-Hilk
thanks for your reply. Your help is much appreciated :)

what i was describing, fits your 3rd point more.

i would want to use c++ but for some part of the program, python does the job better than c++ that's why i also need python

but maybe 1st point is good too. only pyqt

@jsulm
As I said, I totally understand that, I was not complaining, in this question I was just trying to clarify the Python behaviour so that I may bear it in mind when I read answers elsewhere. Which I believe we have now indeed covered here, thank you.

What behaviour do you get with QSplitter ?