/// For use with ChildWindowFromPointEx

public enum WindowFromPointFlags

Enum ChildWindowFromPointFlags

    ''' or in response to a call to a function such as <c>WindowFromPoint</c>.

IntPtr hWnd = WindowFromPoint(pt);

static extern IntPtr ChildWindowFromPointEx(IntPtr hWndParent, Point pt, uint uFlags);

Public Function ChildWindowFromPointEx(ByVal hWndParent As IntPtr, ByVal P As POINTAPI, ByVal uFlags As CWPFlags) As IntPtr

ChildWindowFromPointFlags Enum

static extern IntPtr ChildWindowFromPointEx(IntPtr hWndParent, Point pt, uint uFlags);

Public Function ChildWindowFromPointEx(ByVal hWndParent As IntPtr, ByVal P As POINTAPI, ByVal uFlags As CWPFlags) As IntPtr

public enum ChildWindowFromPointFlags : uint

Useful to force a redraw when you don't have control of the area, when using WindowFromPoint() for example. If you do have control of the object, you can called the managed Control.Invalidate()

IntPtr hWnd = WindowFromPoint(pt);

static extern IntPtr RealChildWindowFromPoint(IntPtr hwndParent, POINT ptParentClientCoords);

Private Shared Function RealChildWindowFromPoint(hwndParent As IntPtr, ptParentClientCoords As POINT) As IntPtr

<DllImport("user32", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)> Public Function RealChildWindowFromPoint(ByVal hwndParent As IntPtr, ByVal ptParentClientCoords As POINTAPI) As IntPtr

static extern IntPtr WindowFromPoint(System.Drawing.Point p);

Private Shared Function WindowFromPoint(ByVal p As Point) As IntPtr

class method WindowFromPoint(aPoint: System.Drawing.Point): IntPtr; external;

The WindowFromPoint function retrieves a handle to the window that contains the specified point.

   IntPtr hWnd = WindowFromPoint(p);