1 ```python3
2 # 通过窗口类名、窗口标题获取控件句柄
3 hwnd = win32gui.FindWindow("ClassName", "TitleName")
4 # 通过句柄设置控件内容
5 win32gui.SendMessage(hwnd , 12, 0, '文本内容')
6 # 修改窗口标题
7 SetWindowText(hwnd, "Title")
8 #通过句柄获取子窗口句柄
9 ch_hwnd = win32gui.FindWindowEx(hwnd, 0, "ClassName", "TitleName")
10
11 # 获取所有子窗口
12 hwndChildList = []
13 win32gui.EnumChildWindows(hwnd, lambda hwnd, param: param.append(hwnd), hwndChildList)
14 print(hwndChildList)
15 # 模糊查询句柄
16 def FindWinHwnd(title, top=True):
17 titles = []
18
19 def foo(hwnd, mouse):
20 if top:
21 if IsWindow(hwnd) and IsWindowEnabled(hwnd) and IsWindowVisible(hwnd):
22 if title in GetWindowText(hwnd):
23 titles.append(hwnd)
24 else:
25 if title in GetWindowText(hwnd):
26 titles.append(hwnd)
27
28 EnumWindows(foo, 0)
29 if titles:
30 return titles[0]
31 else:
32 return 0
33
34 # 截图
35 def window_api_capture(file, hWnd=0):
36 if hWnd == 0:
37 MoniterDev = win32api.EnumDisplayMonitors(None, None)
38 width = MoniterDev[0][2][2]
39 height = MoniterDev[0][2][3]
40 else:
41 left, top, right, bot = win32gui.GetWindowRect(hWnd)
42 width = right - left
43 height = bot - top
44 # 返回句柄窗口的设备环境，覆盖整个窗口，包括非客户区，标题栏，菜单，边框
45 hWndDC = win32gui.GetWindowDC(hWnd)
46 # 创建设备描述表
47 mfcDC = win32ui.CreateDCFromHandle(hWndDC)
48 # 创建内存设备描述表
49 saveDC = mfcDC.CreateCompatibleDC()
50 # 创建位图对象准备保存图片
51 saveBitMap = win32ui.CreateBitmap()
52 # 为bitmap开辟存储空间
53 saveBitMap.CreateCompatibleBitmap(mfcDC, width, height)
54 # 将截图保存到saveBitMap中
55 saveDC.SelectObject(saveBitMap)
56 # 保存bitmap到内存设备描述表
57 saveDC.BitBlt((0, 0), (width, height), mfcDC, (0, 0), win32con.SRCCOPY)
58 try:
59 saveBitMap.SaveBitmapFile(saveDC, file)
60 except:
61 pass
62 win32gui.DeleteObject(saveBitMap.GetHandle())
63 saveDC.DeleteDC()
64 mfcDC.DeleteDC()
65 win32gui.ReleaseDC(hWnd, hWndDC)
