public static void SetAutoHide(bool enable)
{
var data = new APPBARDATA();
data.cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA));
data.hWnd = ShellHandle;
data.lParam = (int)ABS.ABS_ALWAYSONTOP;
if (enable) data.lParam |= (int)ABS.ABS_AUTOHIDE;
var result = SHAppBarMessage((int)ABM.ABM_SETSTATE, ref data);
if (result == IntPtr.Zero) throw new InvalidOperationException();
}
public static ABS GetState()
{
var data = new APPBARDATA();
data.cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA));
data.hWnd = ShellHandle;
var result = SHAppBarMessage((int)ABM.ABM_GETSTATE, ref data);
return (ABS)result.ToInt32();
}
public static Rectangle GetBounds()
{
var data = new APPBARDATA();
data.hWnd = ShellHandle;
// Get position and bounds.
data.cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA));
var result = SHAppBarMessage((int)ABM.ABM_GETTASKBARPOS, ref data);
if (result == IntPtr.Zero) throw new InvalidOperationException();
return Rectangle.FromLTRB(data.rc.left, data.rc.top, data.rc.right, data.rc.bottom);
}
public static ABE GetPosition()
{
var data = new APPBARDATA();
data.hWnd = ShellHandle;
data.cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA));
var result = SHAppBarMessage((int)ABM.ABM_GETTASKBARPOS, ref data);
if (result == IntPtr.Zero) throw new InvalidOperationException();
return (ABE)data.uEdge;
}
public static extern IntPtr SHAppBarMessage(int dwMessage, [MarshalAs(UnmanagedType.Struct)] ref APPBARDATA pData);