How to save a gui created with qt and python as an image

Question

I am trying to use qt creator and python to generate flowcharts with values. I want to save the generated flowchart as an image after, but I cannot figure out how to do it. Here is my attempt: import sys from PyQt5 import QtWidgets, uic from PyQt5.QtGui import * from mainwindow import Ui_MainWindow class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow): def __init__(self, *args, obj=None, **kwargs): super(MainWindow, self).__init__(*args, **kwargs) self.setupUi(self) app = QtWidgets.QApplication(sys.argv) window = MainWindow() window.show() screen = app.primaryScreen() screenshot = screen.grabWindow(window) screen.save('screenshot.png', 'png') JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

The fact that the show method is called does not imply that it is shown instantly, but rather that this method notifies the OS so that the window is created. A possible solution is to use a QTimer, on the other hand the grabWindow method grabs a window using the associated WID, in this case it is better to use the grab method: from functools import partial def take_screenshot(widget): pixmap = widget.grab() if not pixmap.isNull(): pixmap.save("/fullpath/of/screenshot.png", "PNG") QApplication.quit() def main(): app = QtWidgets.QApplication(sys.argv) window = MainWindow() window.show() QTimer.singleShot(500, partial(take_screenshot, window)) app.exec_() if __name__ == "__main__": main()