Setting monitor power state in python?

How can I send a monitor into/out-of a different power state (like sleep)?

Asked by: Catherine524 | Posted: 27-01-2022

Answer 1

After looking at this article:

It appears you need to send a SendMessage call similar to:


Although, that is a VB version. What you're really after is the WinAPI call, I'm sure you can convert this bit to however you invoke WinAPI calls in Python. I hope this helps.

Answered by: Julia827 | Posted: 28-02-2022

Answer 2

import win32gui
import win32con

if argument == "on":
  win32gui.SendMessage(win32con.HWND_BROADCAST, win32con.WM_SYSCOMMAND,
                       win32con.SC_MONITORPOWER, -1)

if argument == "off":
  win32gui.SendMessage(win32con.HWND_BROADCAST, win32con.WM_SYSCOMMAND,
                       win32con.SC_MONITORPOWER, 2)

if argument == "sleep":
  win32gui.SendMessage(win32con.HWND_BROADCAST, win32con.WM_SYSCOMMAND,
                       win32con.SC_MONITORPOWER, 1)

Answered by: Sawyer808 | Posted: 28-02-2022

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