python - Running a Windows executable (calc.exe, etc) inside a PyQt Application

Question

I'm trying to run a Windows executable inside my application written in Python using PyQt5. I'm fairly new to using PyQt5 but trying.

The problem I'm facing is actually getting the EXE in question to run within my applications Frame, Window or QWidget.

At the moment I don't need to send or get responses/results to and from the Windows executable, I only need the ability to show it within my application.

class MyWindow(QWidget):

   def __init__(self):
     super().__init__()

     self.initUI()

   def initUI(self):
     # create a process
     exePath = "C:\Windows\system32\calc.exe"
     # subprocess.Popen(exePath)
     os.system(exePath)
     hwnd = win32gui.FindWindow(0,"Calculator")
     print(hwnd)
     time.sleep(0.05)
     window = QtGui.QWindow.fromWinId(hwnd)

     self.createWindowContainer(window, self)
     self.setGeometry(500, 500, 450, 400)
     self.setWindowTitle('File dialog')
     self.show()

def main():
  app = QApplication(sys.argv)
  w = MyWindow()
  sys.exit(app.exec_())


if __name__ == '__main__':
    main()

What I get from the following Code is this:

Answer 1

Sorry, I don't know if I understood you correctly, but I suggest trying this:

import sys
import subprocess
import threading
import time
import win32gui
from PyQt5.QtCore    import Qt
from PyQt5.QtGui     import QWindow, QPixmap
from PyQt5.QtWidgets import (QWidget, QApplication, QVBoxLayout,
                             QGridLayout, QMainWindow, QLabel) 


class Example(QMainWindow):
    def __init__(self):
        super().__init__()

        self.central_widget = QWidget()
        self.setCentralWidget(self.central_widget)
        
        self.widget = QWidget()
        self.widget.setFixedSize(230, 280)
        self.widget.setStyleSheet("background-color: yellow;")
        self.label = QLabel(self)
        self.label.setPixmap(
            QPixmap('images/splash_.jpg').scaled(self.size().width()/2, self.size().height())
        )
        
        self.grid_layout = QGridLayout(self.central_widget)
        self.grid_layout.addWidget(self.widget, 0, 0, 2, 1)
        
        self.v_layout = QVBoxLayout(self.widget)
        self.initUI()
        self.grid_layout.addWidget(self.label, 0, 1, 1, 1) 
 
    def initUI(self):
        t = threading.Thread(target=self.runExe)
        t.start()
        #                                                 Calculator
        hwnd1 = win32gui.FindWindowEx(0, 0, "CalcFrame", "Калькулятор")
        start = time.time()
        while hwnd1 == 0:
            time.sleep(0.01)
            #                                                 Calculator 
            hwnd1 = win32gui.FindWindowEx(0, 0, "CalcFrame", "Калькулятор")
            end = time.time()
            if end - start > 5:
                return
        window = QWindow.fromWinId(hwnd1)
        widget = self.createWindowContainer(window, self.central_widget)
        self.v_layout.addWidget(widget)
 
    @staticmethod
    def runExe():
        exePath = "C:/Windows/system32/calc.exe"
        subprocess.Popen(exePath)

 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    ex.resize(550, 400)
    ex.show()
    sys.exit(app.exec_())