private static void RaiseNonClientMouseMessageAsClient(IntPtr hwnd, int msg, IntPtr lparam)
{
var point = new Core.Platform.Point
{
X = NativeMethods.GetXlParam(lparam.ToInt32()),
Y = NativeMethods.GetYlParam(lparam.ToInt32())
};
NativeMethods.ScreenToClient(hwnd, ref point);
NativeMethods.SendMessage(hwnd, msg + 513 - 161, new IntPtr(PressedMouseButtons),
NativeMethods.MakeParam(point.X, point.Y));
}
private IntPtr WmHcHitTest(IntPtr lparam, ref bool handled)
{
if (PresentationSource.FromDependencyObject(this) == null)
{
return(new IntPtr(0));
}
var point1 = new Point(NativeMethods.GetXlParam(lparam.ToInt32()),
NativeMethods.GetYlParam(lparam.ToInt32()));
var point2 = PointFromScreen(point1);
DependencyObject visualHit = null;
VisualUtilities.HitTestVisibleElements(this,
target =>
{
visualHit = target.VisualHit;
return(HitTestResultBehavior.Stop);
}, new PointHitTestParameters(point2));
var num = 0;
for (; visualHit != null; visualHit = visualHit.GetVisualOrLogicalParent1())
{
var nonClientArea = visualHit as INonClientArea;
if (nonClientArea == null)
{
continue;
}
num = nonClientArea.HitTest(point1);
if (num != 0)
{
break;
}
}
if (num == 0)
{
num = 1;
}
handled = true;
return(new IntPtr(num));
}
private Cursor GetCursor(IntPtr lParam)
{
var xlParam = NativeMethods.GetXlParam(lParam.ToInt32());
var ylParam = NativeMethods.GetYlParam(lParam.ToInt32());
RECT lpRect;
NativeMethods.GetWindowRect(new WindowInteropHelper(this).Handle, out lpRect);
switch (_direction)
{
case Dock.Left:
if (ylParam - 18 < lpRect.Top)
{
return(Cursors.SizeNWSE);
}
return(ylParam + 18 > lpRect.Bottom ? Cursors.SizeNESW : Cursors.SizeWE);
case Dock.Top:
if (xlParam - 18 < lpRect.Left)
{
return(Cursors.SizeNWSE);
}
return(xlParam + 18 > lpRect.Right ? Cursors.SizeNESW : Cursors.SizeNS);
case Dock.Right:
if (ylParam - 18 < lpRect.Top)
{
return(Cursors.SizeNESW);
}
return(ylParam + 18 > lpRect.Bottom ? Cursors.SizeNWSE : Cursors.SizeWE);
default:
if (xlParam - 18 < lpRect.Left)
{
return(Cursors.SizeNESW);
}
return(xlParam + 18 > lpRect.Right ? Cursors.SizeNWSE : Cursors.SizeNS);
}
}