如何使对话框或弹出窗口可以留在主窗口后面并且不覆盖主窗口

Question

我是pyqt5的新手，我想弹出一个窗口，让窗口可以留在主窗口后面，不能点击（类似于让新窗口作为另一个进程窗口）

import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *

class Demo(QMainWindow):
    def __init__(self):
        super().__init__()
        test_button = QPushButton('test')
        test_button.clicked.connect(self.onClick)
        self.setCentralWidget(test_button)

    def onClick(self):
        # dlg = QDialog(self)
        dlg = QMainWindow(self)
        dlg.setWindowFlag(Qt.WindowStaysOnTopHint, False)
        dlg.show()

app = QApplication([])
demo = Demo()
demo.show()
app.exec()

新窗口总是留在主窗口上，我需要把窗口留在它后面。

Answer 1

void QWidget::move(int x, int y)

import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *


class Demo(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Main Window')
        test_button = QPushButton('test')
        test_button.clicked.connect(self.onClick)
        self.setCentralWidget(test_button)

    def onClick(self):
        # dlg = QDialog(self)
        dlg = QMainWindow(self)
        dlg.setWindowTitle('Dialog Window')

        dlg.move(self.geometry().x() + self.geometry().width() + 30,         # <---
                 self.geometry().y() - 30)

        dlg.setWindowFlag(Qt.WindowStaysOnTopHint, False)
        dlg.show()

    def sizeHint123(self):
        return QSize(200, 200)

app = QApplication([])
demo = Demo()
demo.show()
app.exec()

---

更新

import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *


class Demo(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Main Window')

        self.setWindowFlags(Qt.WindowStaysOnTopHint)                            # +++

        test_button = QPushButton('test')
        test_button.clicked.connect(self.onClick)
        self.setCentralWidget(test_button)

    def onClick(self):
        # dlg = QDialog(self)
        self.dlg = QMainWindow()                                                 # --- self
        self.dlg.setWindowTitle('Dialog Window')

        self.dlg.move(self.geometry().x() + self.geometry().width() + 30,         
                 self.geometry().y() - 30)

#        dlg.setWindowFlag(Qt.WindowStaysOnTopHint, False)
        self.dlg.show()

    def sizeHint123(self):
        return QSize(200, 200)

app = QApplication([])
demo = Demo()
demo.show()
app.exec()