PyQt/Demo/嵌入外部窗口.py
2018-12-28 23:09:46 +08:00

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from PyQt5.QtGui import QWindow
from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton, QListWidget,\
QLabel
import win32con
import win32gui
class Window(QWidget):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.resize(800, 600)
layout = QVBoxLayout(self)
self.myhwnd = int(self.winId()) # 自己的句柄
layout.addWidget(QPushButton('获取所有可用、可视窗口', self,
clicked=self._getWindowList, maximumHeight=30))
layout.addWidget(
QLabel('双击列表中的项目则进行嵌入目标窗口到下方\n格式为:句柄|父句柄|标题|类名', self, maximumHeight=30))
self.windowList = QListWidget(
self, itemDoubleClicked=self.onItemDoubleClicked, maximumHeight=200)
layout.addWidget(self.windowList)
def closeEvent(self, event):
"""窗口关闭"""
if self.layout().count() == 4:
self.restore()
super(Window, self).closeEvent(event)
def _getWindowList(self):
"""清空原来的列表"""
self.windowList.clear()
win32gui.EnumWindows(self._enumWindows, None)
def onItemDoubleClicked(self, item):
"""列表双击选择事件"""
# 先移除掉item
self.windowList.takeItem(self.windowList.indexFromItem(item).row())
hwnd, phwnd, _, _ = item.text().split('|')
# 开始嵌入
if self.layout().count() == 4:
# 如果数量等于4说明之前已经嵌入了一个窗口现在需要把它释放出来
self.restore()
hwnd, phwnd = int(hwnd), int(phwnd)
# 嵌入之前的属性
style = win32gui.GetWindowLong(hwnd, win32con.GWL_STYLE)
exstyle = win32gui.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)
print('save', hwnd, style, exstyle)
widget = QWidget.createWindowContainer(QWindow.fromWinId(hwnd))
widget.hwnd = hwnd # 窗口句柄
widget.phwnd = phwnd # 父窗口句柄
widget.style = style # 窗口样式
widget.exstyle = exstyle # 窗口额外样式
self.layout().addWidget(widget)
def restore(self):
"""归还窗口"""
# 有bug归还后窗口没有了WS_VISIBLE样式不可见
widget = self.layout().itemAt(3).widget()
print('restore', widget.hwnd, widget.style, widget.exstyle)
win32gui.SetParent(widget.hwnd, widget.phwnd) # 让它返回它的父窗口
win32gui.SetWindowLong(
widget.hwnd, win32con.GWL_STYLE, widget.style | win32con.WS_VISIBLE) # 恢复样式
win32gui.SetWindowLong(
widget.hwnd, win32con.GWL_EXSTYLE, widget.exstyle) # 恢复样式
win32gui.ShowWindow(
widget.hwnd, win32con.SW_SHOW) # 显示窗口
widget.close()
self.layout().removeWidget(widget) # 从布局中移出
widget.deleteLater()
def _enumWindows(self, hwnd, _):
"""遍历回调函数"""
if hwnd == self.myhwnd:
return # 防止自己嵌入自己
if win32gui.IsWindow(hwnd) and win32gui.IsWindowVisible(hwnd) and win32gui.IsWindowEnabled(hwnd):
phwnd = win32gui.GetParent(hwnd)
title = win32gui.GetWindowText(hwnd)
name = win32gui.GetClassName(hwnd)
self.windowList.addItem(
'{0}|{1}|\t标题:{2}\t|\t类名:{3}'.format(hwnd, phwnd, title, name))
if __name__ == '__main__':
import sys
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv)
w = Window()
w.show()
sys.exit(app.exec_())