Nabízím moje "simple" řešení pro Windows.
Testováno jen na Windows7, ale asi funguje i ve všech vyšších.

Spouští se soubor taskbar.exe.

Takže taskbar hide -> skryje panel
nebo
taskbar show -> zobrazí panel

Aplikačka ke stažení.


Zde je celý zdroják:

using System;
using System.Runtime.InteropServices;

public class Taskbar
{
    [DllImport("user32.dll")]
    private static extern int FindWindow(string className, string windowText);

    [DllImport("user32.dll")]
    private static extern int ShowWindow(int hwnd, int command);

    [DllImport("user32.dll")]
    public static extern int FindWindowEx(int parentHandle, int childAfter, string className, int windowTitle);

    [DllImport("user32.dll")]
    private static extern int GetDesktopWindow();

    private const int SW_HIDE = 0;
    private const int SW_SHOW = 1;

    protected static int Handle
    {
        get
        {
            return FindWindow("Shell_TrayWnd", "");
        }
    }

    protected static int HandleOfStartButton
    {
        get
        {
            int handleOfDesktop = GetDesktopWindow();
            int handleOfStartButton = FindWindowEx(handleOfDesktop, 0, "button", 0);
            return handleOfStartButton;
        }
    }
	
	public static void Main()
   {
       String[] arguments = Environment.GetCommandLineArgs();
	  
       Console.WriteLine("Type: \"taskbar show\" To show taskbar ");      

	  Console.WriteLine("Type: \"taskbar hide\" To hide taskbar "); 
	  
	  if (arguments.Length != 2)
		  return;

	  if(arguments[1] == "show")
	   {	
	    Console.WriteLine("Showing taskbar... ");
		Show();
       }
 
 
	  if(arguments[1] == "hide")
	  {
		Console.WriteLine("Hidding taskbar... ");
		Hide();
	  }
	  
      
   }

    private Taskbar()
    {
        // hide ctor
    }

    public static void Show()
    {
        ShowWindow(Handle, SW_SHOW);
        ShowWindow(HandleOfStartButton, SW_SHOW);
    }

    public static void Hide()
    {
        ShowWindow(Handle, SW_HIDE);
        ShowWindow(HandleOfStartButton, SW_HIDE);
    }
}