Converting PyQt5 (Python) to Qt C++ QtWebSockets

Kris Revi

so i made a sketch / demo in PyQt5 and now im converting it to Native Qt C++

but im lacking a good tutorial on it so i can convert my python code

from PyQt5 import QtCore, QtWebSockets, QtNetwork
from PyQt5.QtCore import QUrl, pyqtSignal

class Socket(QtCore.QObject):

    error = pyqtSignal(QtNetwork.QAbstractSocket.SocketError)
    pingError = pyqtSignal(QtNetwork.QAbstractSocket.SocketError)
    connReady = pyqtSignal()

    def __init__(self, *args, **kwargs):
        QtCore.QObject.__init__(self)
        self.client = QtWebSockets.QWebSocket('', QtWebSockets.QWebSocketProtocol.Version13, None)
        self.client.error.connect(self.error)
        self.client.error.connect(self.pingError)
        self.client.connected.connect(self.connReady)

        self.hostAdr = kwargs['host']

    def do_ping(self):
        print('client: ping')
        self.client.ping(b'ping')

    def onPong(self, elapsedTime, payload):
        print('onPong - time: {} ; payload: {}'.format(elapsedTime, payload))

    def Connect(self):
        self.client.open(QUrl(f"ws://{self.hostAdr}:80"))
        self.client.pong.connect(self.onPong)

    def sendMessage(self, bName, bValue):
        self.client.sendTextMessage('{"' + bName + '": "' + str(bValue) + '"}')

    def sendMessage2(self, bValue):
        self.client.sendTextMessage(str(bValue))

    def close(self):
        self.client.close()

anyone who can help me? :)

JonB

@Kris-Revi
Since there isn't any answer other than just do the conversion, using docs as necessary, may I ask: if you are familiar/comfortable with Python but not with C++, why are you trying to do this conversion?

Kris Revi

@JonB 2 reasons

Native Qt C++ is faster
Making a .exe from PyQt5 Python is a pain (many people have said to me that i should just convert it to C++)

eyllanesc

@Kris-Revi Converting a code to a language is not trivial (in general) so there will not be a tutorial that indicates what you are looking for. On the other hand, I don't see any attempt from you so it discourages me from trying to help you.

My recommendations is:

Learn C ++,
Learn Qt,
Check the Qt examples with websockets,
Try something to solve your problem, etc.

If you can't do the above then hire someone who has already done the above and then translate your code.

Your post seems to say: can you do my work for free?

I don't see any specific problem.

Kris Revi

@eyllanesc

and i quote

but im lacking a good tutorial

eyllanesc

@Kris-Revi There is no such magic tutorial, the closest are the official examples: https://doc.qt.io/qt-5/qtwebsockets-examples.html

Kris Revi

@eyllanesc i did follow the example on the docs just to test it out but im getting a shit load of errors for some reason :S i've copied JUST like it is in the example just to see it working (connecting to my ESP32)

Image
Errors

eyllanesc

@Kris-Revi That is a linking problem, check if the Qt you have installed has the QtWebsockets module installed. Also show your .pro.

Kris Revi

@eyllanesc i fixed it by adding

QT += websockets

to the .pro

but im getting this now

00:00:44: Cannot retrieve debugging output.