pyqt

问题 I have problem to access my button and label from my dialog.ui. I am using Python 3.x and QT Designer 5.x. from PyQt5 import uic, QtWidgets from PyQt5.QtWidgets import QApplication Form, Window = uic.loadUiType("dialog.ui") #load ui (GUI) file app = QApplication([]) #create a QApplication window = Window() form = Form() form.setupUi(window) def on_click(): # self.qlFreeText.text("hello") alert = QMessageBox() alert.setText("You clicked the button!") alert.exec_() class Ui(QtWidgets

问题 A PyQt4 app runs ping in a QProcess . A QTextEdit named self.output will output everything from ping . A second QTextEdit named self.summary will only output the line if it contains the string TTL . Problem: I have managed to get self.output working but not self.summary as I am not sure how to write its code in the dataReady function. Any ideas? import sys from PyQt4 import QtGui, QtCore class MainWindow(QtGui.QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.initUI()

问题 A PyQt4 app runs ping in a QProcess . A QTextEdit named self.output will output everything from ping . A second QTextEdit named self.summary will only output the line if it contains the string TTL . Problem: I have managed to get self.output working but not self.summary as I am not sure how to write its code in the dataReady function. Any ideas? import sys from PyQt4 import QtGui, QtCore class MainWindow(QtGui.QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.initUI()

问题 A PyQt4 app runs ping in a QProcess . A QTextEdit named self.output will output everything from ping . A second QTextEdit named self.summary will only output the line if it contains the string TTL . Problem: I have managed to get self.output working but not self.summary as I am not sure how to write its code in the dataReady function. Any ideas? import sys from PyQt4 import QtGui, QtCore class MainWindow(QtGui.QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.initUI()

问题 Dear Stackoverflow community, I am struggling with running a python script that executes a PyQt5 GUI on desktop startup of Raspberry Pi 3B with Raspbian Jessie. What do I have so far? Python script with shebang #!/usr/bin/env python3 in first line ( python3 --version is 3.4.2) running the GUI without any problems Shell script (.sh) that is able to execute the GUI with the following lines: #!/bin/bash python3 GUI.py Information that may help: If I place both files in the same directory

问题 Dear Stackoverflow community, I am struggling with running a python script that executes a PyQt5 GUI on desktop startup of Raspberry Pi 3B with Raspbian Jessie. What do I have so far? Python script with shebang #!/usr/bin/env python3 in first line ( python3 --version is 3.4.2) running the GUI without any problems Shell script (.sh) that is able to execute the GUI with the following lines: #!/bin/bash python3 GUI.py Information that may help: If I place both files in the same directory

问题 I am creating a video player and I need to draw some polygons on top of it. I am using a QGraphicsScene to create this and I need to update the polygons on screen after each frame. I am currently using the QMediaPlayer paired up with a QGraphicsVideoItem to create this. The problem I am having is that the QMediaPlayer doesn't have a signal that activates on each frame. It has positionChanged(), but this only seems to trigger once every second. I tried using QMovie since it does send updates

问题 I would like to update the Qtimer according to a framerate of 15 FPS - so my def update(): recieves a signal every 0,06 s. Can you help me? I have attached a code example below where my setInterval input is 1/15, but I dont know if that is the way to go. Thanks. from PyQt5 import QtCore def update(): print('hey') fps = 15 timer = QtCore.QTimer() timer.timeout.connect(update) timer.setInterval(1/fps) timer.start() 回答1: You have the following errors: setInterval() receives the time in

问题 I have a QTableWidget that when a row is clicked, it selects all cells in that row. I am trying to add a "copy" functionality so that I can ^ctrl-c when row(s) are selected and paste into a text editor. However, with my current code, once i ^ctrl-c a row, the line that I copied keeps getting copied. I have implemented a print statement in my method "read_clipboard" to see whether or not the line copied was read, and this is how I found out that the line keeps getting copied as if in an

问题 I'm doing a college project where we need to set up a dropbox-like service in a local network. I can do it easily in a terminal, but for some extra points I'm trying to set up an QtPy ui for it. One of my widgets it's a QTreeView with a QFileSystemModel where I'd like to visualize the files and folders the user has saved on his "dropbox". The thing is, that the information and the folder itself are in another computer. I've tried sending the widget from one pc to another but you can't pickle