Powershell function to show/hide the console window. I’ve used this format to start a process of a powershell GUI and hid the console after load. Can then be used to toggle the console as well.

ConsoleView.ps1

function Show-Console
{
    param ([Switch]$Show,[Switch]$Hide)
    if (-not ("Console.Window" -as [type])) { 

        Add-Type -Name Window -Namespace Console -MemberDefinition '
        [DllImport("Kernel32.dll")]
        public static extern IntPtr GetConsoleWindow();

        [DllImport("user32.dll")]
        public static extern bool ShowWindow(IntPtr hWnd, Int32 nCmdShow);
        '
    }

    if ($Show)
    {
        $consolePtr = [Console.Window]::GetConsoleWindow()

        # Hide = 0,
        # ShowNormal = 1,
        # ShowMinimized = 2,
        # ShowMaximized = 3,
        # Maximize = 3,
        # ShowNormalNoActivate = 4,
        # Show = 5,
        # Minimize = 6,
        # ShowMinNoActivate = 7,
        # ShowNoActivate = 8,
        # Restore = 9,
        # ShowDefault = 10,
        # ForceMinimized = 11

        $null = [Console.Window]::ShowWindow($consolePtr, 5)
    }

    if ($Hide)
    {
        $consolePtr = [Console.Window]::GetConsoleWindow()
        #0 hide
        $null = [Console.Window]::ShowWindow($consolePtr, 0)
    }
}

# to hide the console
Show-Console -hide

# to show the console 
Show-Console -show