Reset-Ansi terminal

ResetAnsi.ps1

Add-Type -MemberDefinition @"

[DllImport("kernel32.dll", SetLastError=true)]
public static extern bool SetConsoleMode(IntPtr hConsoleHandle, int mode);

[DllImport("kernel32.dll", SetLastError=true)]
public static extern IntPtr GetStdHandle(int handle);

[DllImport("kernel32.dll", SetLastError=true)]
public static extern bool GetConsoleMode(IntPtr handle, out int mode);

"@ -Namespace FB.Win32 -Name NativeConsoleMethods

function Reset-Ansi {
    $Handle = [FB.Win32.NativeConsoleMethods]::GetStdHandle(-11) #  stdout
    $Mode = 0
    $Result = [FB.Win32.NativeConsoleMethods]::GetConsoleMode($Handle, [ref]$Mode)
    $Mode = $Mode -bor 4 # undocumented flag to enable ansi/vt100
    $Result = [FB.Win32.NativeConsoleMethods]::SetConsoleMode($Handle, $Mode)
}

[Flags()]
enum ConsoleMode {
    None = 0
    EnableProcessedOutput = 1
    EnableWrapAtEolOutput = 2
    EnableVirtualTerminalProcessing = 4
    DisableNewlineAutoReturn = 8

}

function Set-ConsoleMode{
    param(
        [Parameter(Mandatory)]
        [ConsoleMode] $Mode
        )

    $Handle = [FB.Win32.NativeConsoleMethods]::GetStdHandle(-11) #  stdout    
    [FB.Win32.NativeConsoleMethods]::SetConsoleMode($Handle, $Mode)
    [void] [FB.Win32.NativeConsoleMethods]::GetConsoleMode($Handle, [ref]$Mode)
    $mode
}


function Get-ConsoleMode{
    [OutputType([ConsoleMode])]
    param()

    $Handle = [FB.Win32.NativeConsoleMethods]::GetStdHandle(-11) #  stdout
    $Mode = 0
    [void] [FB.Win32.NativeConsoleMethods]::GetConsoleMode($Handle, [ref]$Mode)
    [ConsoleMode]$Mode
}