/// <summary>
/// Gets the current Taskbar state
/// </summary>
/// <returns>current Taskbar state</returns>
public static AppBarStates GetTaskbarState()
{
Appbardata msgData = new Appbardata();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = FindWindow("System_TrayWnd", null);
return((AppBarStates)SHAppBarMessage((UInt32)AppBarMessages.GetState, ref msgData));
}
/// <summary>
/// Set the Taskbar State option
/// </summary>
/// <param name="option">AppBarState to activate</param>
public static void SetTaskbarState(AppBarStates option)
{
Appbardata msgData = new Appbardata();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = FindWindow("System_TrayWnd", null);
msgData.lParam = (int)option;
SHAppBarMessage((UInt32)AppBarMessages.SetState, ref msgData);
}
private static Minmaxinfo AdjustWorkingAreaForAutoHide(IntPtr monitor, Minmaxinfo mmi)
{
var hwnd = NativeMethods.FindWindow("Shell_TrayWnd", null);
var monitorWithTaskBar = NativeMethods.MonitorFromWindow(hwnd, MonitorDefaulttonearest);
if (!monitor.Equals(monitorWithTaskBar))
{
return(mmi);
}
var abd = new Appbardata();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = hwnd;
NativeMethods.SHAppBarMessage((int)AbMsg.AbmGettaskbarpos, ref abd);
var uEdge = GetEdge(abd.rc);
var autoHide = Convert.ToBoolean(NativeMethods.SHAppBarMessage((int)AbMsg.AbmGetstate, ref abd));
if (!autoHide)
{
return(mmi);
}
switch (uEdge)
{
case (int)AbEdge.AbeLeft:
mmi.ptMaxPosition.X += 2;
mmi.ptMaxTrackSize.X -= 2;
mmi.ptMaxSize.X -= 2;
break;
case (int)AbEdge.AbeRight:
mmi.ptMaxSize.X -= 2;
mmi.ptMaxTrackSize.X -= 2;
break;
case (int)AbEdge.AbeTop:
mmi.ptMaxPosition.Y += 2;
mmi.ptMaxTrackSize.Y -= 2;
mmi.ptMaxSize.Y -= 2;
break;
case (int)AbEdge.AbeBottom:
mmi.ptMaxSize.Y -= 2;
mmi.ptMaxTrackSize.Y -= 2;
break;
default:
return(mmi);
}
return(mmi);
}
private void RegisterBar(bool register)
{
var abd = new Appbardata();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = new WindowInteropHelper(this).Handle;
if (register)
{
_appBarId = RegisterWindowMessage("AppBarMessage");
abd.uCallbackMessage = _appBarId;
SHAppBarMessage((int)AbMsg.AbmNew, ref abd);
}
else
{
SHAppBarMessage((int)AbMsg.AbmRemove, ref abd);
}
}
private void GetPosition(string strClassName, string strWindowName)
{
_mData = new Appbardata();
_mData.cbSize = (UInt32)Marshal.SizeOf(_mData.GetType());
IntPtr hWnd = FindWindow(strClassName, strWindowName);
if (hWnd != IntPtr.Zero)
{
UInt32 uResult = SHAppBarMessage(AbmGettaskbarpos, ref _mData);
if (uResult != 1)
{
throw new Exception("Failed to communicate with the given AppBar");
}
}
else
{
throw new Exception("Failed to find an AppBar that matched the given criteria");
}
}
internal static extern int SHAppBarMessage(int dwMessage, ref Appbardata pData);
public static extern uint SHAppBarMessage(int dwMessage, ref Appbardata pData);
private static extern UInt32 SHAppBarMessage(UInt32 dwMessage, ref Appbardata pData);
public static extern uint SHAppBarMessage( int dwMessage, ref Appbardata pData );
