internal static Rect GetOnScreenPosition(Rect floatRect)
{
Rect rect1 = floatRect;
floatRect = floatRect.LogicalToDeviceUnits();
Rect rect2;
Rect rect3;
Screen.FindMaximumSingleMonitorRectangle(floatRect, out rect2, out rect3);
if (floatRect.IntersectsWith(rect3))
return rect1;
Screen.FindMonitorRectsFromPoint(NativeMethods.NativeMethods.GetCursorPos(), out rect2, out rect3);
var rect4 = rect3.DeviceToLogicalUnits();
if (rect1.Width > rect4.Width)
rect1.Width = rect4.Width;
if (rect1.Height > rect4.Height)
rect1.Height = rect4.Height;
if (rect4.Right <= rect1.X)
rect1.X = rect4.Right - rect1.Width;
if (rect4.Left > rect1.X + rect1.Width)
rect1.X = rect4.Left;
if (rect4.Bottom <= rect1.Y)
rect1.Y = rect4.Bottom - rect1.Height;
if (rect4.Top > rect1.Y + rect1.Height)
rect1.Y = rect4.Top;
return rect1;
}