Python Notes32:pywin32获取窗口句柄

用到的库

import sys
import win32gui
import win32con

显示窗口属性

1. 获取所有窗口的句柄

def get_all_windows():
    hWnd_list = []
    win32gui.EnumWindows(lambda hWnd, param: param.append(hWnd), hWnd_list)
    print(hWnd_list)
    return hWnd_list

>>[66364, 66014, 65964, 65854, 65850, 65846, 65842, 65826, 65812, 65802, 65858, 65862, 65876, 65794, ....]

2.获取窗口的子窗口句柄

def get_son_windows(parent):
      hWnd_child_list = []
      win32gui.EnumChildWindows(parent, lambda hWnd, param: param.append(hWnd), hWnd_child_list)
      print(hWnd_child_list)
      return hWnd_child_list

>>[66364, 66014, 65964, 65854, ...]

3. 获取句柄的标题

def get_title(hwnd):
    title = win32gui.GetWindowText(hwnd)
    print('窗口标题:%s' % (title))
    return title

>>窗口标题:设置

4. 获取窗口类名

def get_clasname(hwnd):
    clasname = win32gui.GetClassName(hwnd)
    print('窗口类名:%s' % (clasname))
    return clasname

>>窗口类名:ApplicationFrameWindow

其他

1. 置顶和取消

窗口置顶

def set_top(hwnd):
    win32gui.SetWindowPos(hwnd, win32con.HWND_TOPMOST, 0, 0, 0, 0,
                          win32con.SWP_NOMOVE | win32con.SWP_NOACTIVATE | win32con.SWP_NOOWNERZORDER | win32con.SWP_SHOWWINDOW | win32con.SWP_NOSIZE)

窗口取消置顶

def set_down(hwnd):
    win32gui.SetWindowPos(hwnd, win32con.HWND_NOTOPMOST, 0, 0, 0, 0,
                          win32con.SWP_SHOWWINDOW | win32con.SWP_NOSIZE | win32con.SWP_NOMOVE)

2. 显示和隐藏窗口

根据窗口名称获取句柄

def get_hwnd_from_name(name):
    hWnd_list = get_all_windows()
    for hwd in hWnd_list:
        title = get_title(hwd)
        if title == name:
            return hwd

窗口显示

def xianshi(name):
    hwd = get_hwnd_from_name(name)
    win32gui.ShowWindow(hwd, win32con.SW_SHOW)

窗口隐藏

def yingcang(name):
    hwd = get_hwnd_from_name(name)
    win32gui.ShowWindow(hwd, win32con.SW_HIDE)

显示和隐藏托盘

获取右下角托盘的任务句柄

def get_tuopan_hwd():
    handle = win32gui.FindWindow("Shell_TrayWnd", None)
    hWnd_child_list = get_son_windows(handle)[1:]
    tuopan_hwd_list = []
    flag = False
    for i in hWnd_child_list:
        if get_clasname(i) ==  'TrayNotifyWnd':
            flag = True
        if flag:
            tuopan_hwd_list.append(i)
    return tuopan_hwd_list

隐藏托盘

def yingcang(name=''):
    tuopan_hwd_list = get_tuopan_hwd()
    if name == '':
        for i in tuopan_hwd_list[:7] :
            win32gui.ShowWindow(i, win32con.SW_HIDE)
    else:
        win32gui.ShowWindow(name, win32con.SW_HIDE)

显示托盘

def xianshi(name = ''):
    tuopan_hwd_list = get_tuopan_hwd()
    if name == '':
        for i in tuopan_hwd_list:
            win32gui.ShowWindow(i, win32con.SW_SHOW)
    else:
        win32gui.ShowWindow(name, win32con.SW_SHOW)

Demo

import win32gui

hwnd_title = dict() #创建字典保存窗口的句柄与名称映射关系
hwnd_class = dict() 
hwnd_class_title = dict() 

def get_all_hwnd(hwnd, mouse):
  if win32gui.IsWindow(hwnd) and win32gui.IsWindowEnabled(hwnd) and win32gui.IsWindowVisible(hwnd):
    # hwnd_title.update({hwnd: win32gui.GetWindowText(hwnd)})
    # hwnd_class.update({hwnd: win32gui.GetClassName(hwnd)})
    hwnd_class_title.update({win32gui.GetClassName(hwnd):win32gui.GetWindowText(hwnd)})

win32gui.EnumWindows(get_all_hwnd, 0)
# 窗口类型 --- 窗口名
# print(hwnd_class_title)


for h, t in hwnd_class_title.items():
    if t!= "":
      print(h, "---",t)

# for h, t in hwnd_title.items():
#     if t!= "":
#       print(h, t)

# for h, t in hwnd_class.items():
#   if t!= "":
#       print(h, t)

from PyQt6.QtWidgets import QApplication
from PyQt6.QtGui import *
import win32gui
import sys
 
# hwnd = win32gui.FindWindow("TaskManagerWindow", '任务管理器')
hwnd = win32gui.FindWindow("WeChatMainWndForPC", '微信')
app = QApplication(sys.argv)
screen = QApplication.primaryScreen()
img = screen.grabWindow(hwnd).toImage()
img.save("screenshot.jpg")

• 有个小问题是，有的画面部分不显示