获取每个窗口的 HWND? [英] Get HWND of each Window?

问题描述

我正在开发一个 python 应用程序，我想获取每个打开的窗口的 HWND.我需要窗口的名称和 HWND 来过滤列表以管理一些特定的窗口，移动和调整它们的大小.

I am developing a python application and I want to get the HWND of each open windows. I need the name of the windows and the HWND to filter the list to manage some specifics windows, moving and resizing them.

我曾尝试自己查看周围的信息，但没有得到正确的代码段.我试过这个代码，但我只获取每个窗口的标题(这很好)，但我也需要 HWND.

I have tried to do it myself looking information around but I did not get the correct piece of code. I tried with this code but I only get the title of each windows (that is great), but I need the HWND too.

import ctypes
import win32gui
EnumWindows = ctypes.windll.user32.EnumWindows
EnumWindowsProc = ctypes.WINFUNCTYPE(ctypes.c_bool, ctypes.POINTER(ctypes.c_int), ctypes.POINTER(ctypes.c_int))
GetWindowText = ctypes.windll.user32.GetWindowTextW
GetWindowTextLength = ctypes.windll.user32.GetWindowTextLengthW
IsWindowVisible = ctypes.windll.user32.IsWindowVisible

titles = []
def foreach_window(hwnd, lParam):
    if IsWindowVisible(hwnd):
        length = GetWindowTextLength(hwnd)
        buff = ctypes.create_unicode_buffer(length + 1)
        GetWindowText(hwnd, buff, length + 1)
        titles.append((hwnd, buff.value))
    return True
EnumWindows(EnumWindowsProc(foreach_window), 0)

for i in range(len(titles)):
    print(titles)[i]

win32gui.MoveWindow((titles)[5][0], 0, 0, 760, 500, True)

这里有一个错误:

win32gui.MoveWindow((titles)[5][0], 0, 0, 760, 500, True)
 TypeError: The object is not a PyHANDLE object

推荐答案

你混淆了 ctypes 和 win32gui.
你得到的 hwnd 是通过 ctypes 获得的，是一个 LP_c_long 对象.这就是 win32gui.MoveWindow 不接受它的原因.你应该把它传给

You mixed up ctypes and win32gui.
The hwnd you've got is obtained via ctypes and is a LP_c_long object. That's why win32gui.MoveWindow didn't accept it. You should pass it to

ctypes.windll.user32.MoveWindow(titles[5][0], 0, 0, 760, 500, True)

如果你想使用win32gui.MoveWindow，你可以直接使用python函数作为回调.
例如，

If you want to use win32gui.MoveWindow, you can use python function as callback directly.
For example,

import win32gui

def enumHandler(hwnd, lParam):
    if win32gui.IsWindowVisible(hwnd):
        if 'Stack Overflow' in win32gui.GetWindowText(hwnd):
            win32gui.MoveWindow(hwnd, 0, 0, 760, 500, True)

win32gui.EnumWindows(enumHandler, None)

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