/// <summary>
/// 获取windows任务栏的方位和工作区距离屏幕边缘的距离。
/// </summary>
/// <param name="margin">任务栏与工作区的接触边距离屏幕边的距离</param>
/// <returns></returns>
public static WindowsTaskbarEdge GetWindowsTaskbarEdge(out double margin)
{
IntPtr hwnd = SafeNativeMethods.FindWindow("Shell_TrayWnd", null);
var abd = new SafeNativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = hwnd;
SafeNativeMethods.SHAppBarMessage(5, ref abd);
switch (abd.uEdge)
{
case (int)WindowsTaskbarEdge.Left:
margin = Math.Abs(abd.rc.Left - abd.rc.Right);
return(WindowsTaskbarEdge.Left);
case (int)WindowsTaskbarEdge.Top:
margin = Math.Abs(abd.rc.Top - abd.rc.Bottom);
return(WindowsTaskbarEdge.Top);
case (int)WindowsTaskbarEdge.Right:
margin = Math.Abs(abd.rc.Left - abd.rc.Right);
return(WindowsTaskbarEdge.Right);
case (int)WindowsTaskbarEdge.Bottom:
margin = Math.Abs(abd.rc.Top - abd.rc.Bottom);
return(WindowsTaskbarEdge.Bottom);
default:
margin = 0;
return(WindowsTaskbarEdge.Bottom);
}
}