Question:
New to powershell & .NET.
It is possible to configure powershell console colors.
However how can i set the opacity of the window. It seems that the InternalHostRawUserInterface class’s property takes an enum ConsoleColor.
Is it possible to set the windows transparency?
Answer:
As Joey mentioned in his comment, you’ll have to talk to a low-level API to modify the transparency of the window.
Using this example, we can adapt it to PowerShell like so:
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function Set-ConsoleOpacity { param( [ValidateRange(10,100)] [int]$Opacity ) # Check if pinvoke type already exists, if not import the relevant functions try { $Win32Type = [Win32.WindowLayer] } catch { $Win32Type = Add-Type -MemberDefinition @' [DllImport("user32.dll")] public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); [DllImport("user32.dll")] public static extern int GetWindowLong(IntPtr hWnd, int nIndex); [DllImport("user32.dll")] public static extern bool SetLayeredWindowAttributes(IntPtr hwnd, uint crKey, byte bAlpha, uint dwFlags); '@ -Name WindowLayer -Namespace Win32 -PassThru } # Calculate opacity value (0-255) $OpacityValue = [int]($Opacity * 2.56) - 1 # Grab the host windows handle $ThisProcess = Get-Process -Id $PID $WindowHandle = $ThisProcess.MainWindowHandle # "Constants" $GwlExStyle = -20; $WsExLayered = 0x80000; $LwaAlpha = 0x2; if($Win32Type::GetWindowLong($WindowHandle,-20) -band $WsExLayered -ne $WsExLayered){ # If Window isn't already marked "Layered", make it so [void]$Win32Type::SetWindowLong($WindowHandle,$GwlExStyle,$Win32Type::GetWindowLong($WindowHandle,$GwlExStyle) -bxor $WsExLayered) } # Set transparency [void]$Win32Type::SetLayeredWindowAttributes($WindowHandle,0,$OpacityValue,$LwaAlpha) } |
And then use it like:
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Set-ConsoleOpacity -Opacity 50 |
Which will then set the opacity of the window to 50%