pyqt

问题 I'm trying to change Image with Pushbutton (GPIO PINs) stored inside a folder using QML with PyQt5 Python Code: from gpiozero import Button from signal import pause from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtQml import * import os, time, sys def btn_pressed(): global r return lambda: r.setProperty("source", "/home/pi/Desktop/example/sample/img/img1.jpg") button1 = Button(20) myApp = QGuiApplication([]) myEngine = QQmlApplicationEngine() directory = os.path.dirname(os

问题 I'm trying to change Image with Pushbutton (GPIO PINs) stored inside a folder using QML with PyQt5 Python Code: from gpiozero import Button from signal import pause from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtQml import * import os, time, sys def btn_pressed(): global r return lambda: r.setProperty("source", "/home/pi/Desktop/example/sample/img/img1.jpg") button1 = Button(20) myApp = QGuiApplication([]) myEngine = QQmlApplicationEngine() directory = os.path.dirname(os

问题 I have a video, from which I am getting some clips by time interval, and I want to do the following: Make the clips play one after another - so first clip plays, then after it is done, then second plays, and so on... But currently, it's good, but it just plays the part in between the time intervals of the two clips, which I don't want it to do. How would I go about doing that? I tried using e.g. pause , stop , etc... simply everything, but none of them worked. My version of python: 3.6.0 And

问题 I have a video, from which I am getting some clips by time interval, and I want to do the following: Make the clips play one after another - so first clip plays, then after it is done, then second plays, and so on... But currently, it's good, but it just plays the part in between the time intervals of the two clips, which I don't want it to do. How would I go about doing that? I tried using e.g. pause , stop , etc... simply everything, but none of them worked. My version of python: 3.6.0 And

问题 I have a video, from which I am getting some clips by time interval, and I want to do the following: Make the clips play one after another - so first clip plays, then after it is done, then second plays, and so on... But currently, it's good, but it just plays the part in between the time intervals of the two clips, which I don't want it to do. How would I go about doing that? I tried using e.g. pause , stop , etc... simply everything, but none of them worked. My version of python: 3.6.0 And

问题 I have a video, from which I am getting some clips by time interval, and I want to do the following: Make the clips play one after another - so first clip plays, then after it is done, then second plays, and so on... But currently, it's good, but it just plays the part in between the time intervals of the two clips, which I don't want it to do. How would I go about doing that? I tried using e.g. pause , stop , etc... simply everything, but none of them worked. My version of python: 3.6.0 And

问题 I want to add a background image to a widget and thus I need a resource file but I am not able to create it in Qt Designer. Here is what I did: From the widget I go to the resources browser and click on the "add new file" button then a new window pops up. I am asked to point to the .qrc file but this file does not exist and I don't know how to create it. I googled and found that .qrc files are created using Qt Creator. Can't I create a .qrc file in Qt Designer ? Do I need to use Qt Creator to

问题 I'll try to be much clear as possible. I have a very simple test script that control a Power Supply, the script measure some current from the Agilent Power Supply + Unit Under Test, then, the script print these readings as simple as: PS.write(b"MEAS:CURR? \n") time.sleep(2) response = PS.read(1000) time.sleep(3) print(response) (float(response)*1) E3632A=(float(response)*1) print (E3632A) When the script excecute the "print command" (print (E3632A), all the information is displayed into the

问题 I am using QPainter and QPolygon classes to paint polygons over an image. I need the user to be able to edit this polygons by dragging the points in them. The QPolygon and QPainter classes don't have any signals, so I can't trigger the event through them. I have realized that if I keep on using this approach, then the image would have to be rendered each time a point is moved would probably look really bad and not smooth at all. Anybody know how I could put these points on top of the image

问题 I am using QPainter and QPolygon classes to paint polygons over an image. I need the user to be able to edit this polygons by dragging the points in them. The QPolygon and QPainter classes don't have any signals, so I can't trigger the event through them. I have realized that if I keep on using this approach, then the image would have to be rendered each time a point is moved would probably look really bad and not smooth at all. Anybody know how I could put these points on top of the image