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Asked: 2026-05-19T01:31:49+00:00

Using Python Win32 extensions, how do you make an arbitrary window on Windows XP

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Using Python Win32 extensions, how do you make an arbitrary window on Windows XP transparent?

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  1. Editorial Team

    SetLayeredWindowsAttributes example:

    import win32gui
import win32con
import winxpgui
import win32api
import subprocess
import time

subprocess.Popen("notepad.exe", shell=True)
time.sleep(1)
hwnd = win32gui.FindWindow(None, "New file - metapad")  ## The caption of my empty notepad (MetaPad)

win32gui.SetWindowLong (hwnd, win32con.GWL_EXSTYLE, win32gui.GetWindowLong (hwnd, win32con.GWL_EXSTYLE ) | win32con.WS_EX_LAYERED )
winxpgui.SetLayeredWindowAttributes(hwnd, win32api.RGB(0,0,0), 180, win32con.LWA_ALPHA)
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