ToggleDisplay.psm1
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Add-Type -Namespace Win32API -Name Message -MemberDefinition @'
[DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern IntPtr SendMessage( int hWnd, UInt32 Msg, int wParam, int lParam ); '@ $msg = @{ HWND_Broadcast = 0xFFFF WM_SysCommand = 0x0112 SC_MonitorPower = 0xF170 PowerOn = -1 PowerOff = 2 } Function Start-Display { <# .SYNOPSIS Turns on the display of the computer. .DESCRIPTION Start-Display turns on the display of the computer. This does not turn on the physical monitor, but it will bring the display up from a low-power state. .INPUTS None. You cannot pipe objects to Start-Display. .OUTPUTS None. Start-Display does not generate any output. .EXAMPLE PS C:\> Start-Display This command will turn on the display of the computer. .LINK Add-Type #> [CmdletBinding(HelpURI='https://gallery.technet.microsoft.com/Turn-the-Display-On-and-Off-3414d706')] Param() [Win32API.Message]::SendMessage($msg.HWND_Broadcast, $msg.WM_SysCommand, $msg.SC_MonitorPower, $msg.PowerOn) | Out-Null } Function Stop-Display { <# .SYNOPSIS Turns off the display of the computer. .DESCRIPTION Stop-Display turns off the display of the computer. This does not turn off the physical monitor, but it will send the display to a low-power state. .INPUTS None. You cannot pipe objects to Stop-Display. .OUTPUTS None. Stop-Display does not generate any output. .EXAMPLE PS C:\> Stop-Display This command will turn on the display of the computer. .LINK Add-Type #> [CmdletBinding(HelpURI='https://gallery.technet.microsoft.com/Turn-the-Display-On-and-Off-3414d706')] Param() [Win32API.Message]::SendMessage($msg.HWND_Broadcast, $msg.WM_SysCommand, $msg.SC_MonitorPower, $msg.PowerOff) | Out-Null } New-Alias -Name sadp -Value Start-Display New-Alias -Name spdp -Value Stop-Display |