#this script minimizes the content player and switches to the start screen

#minimize Powershell script
$sig = '[DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);'
Add-Type -MemberDefinition $sig -name NativeMethods -namespace Win32
$PSId = @(Get-Process "powershell" -ErrorAction SilentlyContinue)[0].MainWindowHandle 
If ($PSId -ne $NULL) {  [Win32.NativeMethods]::ShowWindowAsync($PSId, 2)}

#Minimize the content player
$sig = '[DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);'
Add-Type -MemberDefinition $sig -name NativeMethods -namespace Win32

#find the process ID for the content player
$hwnd = @(Get-Process "signage")[0].MainWindowHandle

#        "Hidden"             {$WinStateInt =  0}
#        "Normal"             {$WinStateInt =  1}
#        "ShowMinimized"      {$WinStateInt =  2}
#        "Maximized"          {$WinStateInt =  3}
#        "ShowNoActivate"     {$WinStateInt =  4}
#        "Show"               {$WinStateInt =  5}
#        "Minimized"          {$WinStateInt =  6}
#        "ShowMinNoActive"    {$WinStateInt =  7}
#        "ShowNA"             {$WinStateInt =  8}
#        "Restore"            {$WinStateInt =  9}
#        "ShowDefault"        {$WinStateInt = 10}
#        "ForceMinimize"      {$WinStateInt = 11}

# minimize content player window
[Win32.NativeMethods]::ShowWindowAsync($hwnd, 11)

#execute CTRL=ESC command to switch to start screen
[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")
[System.Windows.Forms.SendKeys]::SendWait("^{ESC}")