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PowerShell: Turn off computer screen
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# Source: http://www.powershellmagazine.com/2013/07/18/pstip-how-to-switch-off-display-with-powershell/ | |
# Turn display off by calling WindowsAPI. | |
# PostMessage(HWND_BROADCAST,WM_SYSCOMMAND, SC_MONITORPOWER, POWER_OFF) | |
# HWND_BROADCAST 0xffff | |
# WM_SYSCOMMAND 0x0112 | |
# SC_MONITORPOWER 0xf170 | |
# POWER_OFF 0x0002 | |
Add-Type -TypeDefinition ' | |
using System; | |
using System.Runtime.InteropServices; | |
namespace Utilities { | |
public static class Display | |
{ | |
[DllImport("user32.dll", CharSet = CharSet.Auto)] | |
private static extern IntPtr PostMessage( | |
IntPtr hWnd, | |
UInt32 Msg, | |
IntPtr wParam, | |
IntPtr lParam | |
); | |
public static void PowerOff () | |
{ | |
PostMessage( | |
(IntPtr)0xffff, // HWND_BROADCAST | |
0x0112, // WM_SYSCOMMAND | |
(IntPtr)0xf170, // SC_MONITORPOWER | |
(IntPtr)0x0002 // POWER_OFF | |
); | |
} | |
} | |
} | |
' | |
[Utilities.Display]::PowerOff() |
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