# -*- coding: utf-8 -*-

import sys
import win32gui
from PyQt5.QtGui import QWindow
from PyQt5.QtWidgets import QWidget, QApplication, QVBoxLayout, QHBoxLayout, QPushButton
from PyQt5.QtCore import Qt


class MyWidget(QWidget):
	def __init__(self, parent=None):
		super(MyWidget, self).__init__(parent)
		layout = QVBoxLayout(self)
		btnLayout = QHBoxLayout()
		embedBtn = QPushButton("embed")
		popupBtn = QPushButton("popup")
		btnLayout.addWidget(embedBtn)
		btnLayout.addWidget(popupBtn)
		layout.addLayout(btnLayout)

		embedBtn.clicked.connect(self.embed)
		popupBtn.clicked.connect(self.popup)

		self.window = None
		self.windowWidget = None
		self.hwnd = None
		self.resize(400, 400)

	def embed(self):
		self.hwnd = win32gui.FindWindow(None, "block application")
		if self.hwnd:
			self.window = QWindow.fromWinId(self.hwnd)
			self.windowWidget = QWidget.createWindowContainer(self.window)
			self.layout().addWidget(self.windowWidget)
			win32gui.SetParent(self.hwnd, int(self.winId()))

	def popup(self):
		self.window.setParent(None)
		self.window.setFlags(Qt.Window)
		self.windowWidget.setParent(None)
		self.windowWidget.destroy()
		win32gui.SetParent(self.hwnd, 0)
		win32gui.UpdateWindow(self.hwnd)


if __name__ == '__main__':
	app = QApplication(sys.argv)
	widget = MyWidget()
	widget.show()
	app.exec_()