Control.GetChildAtPoint Method (Point, GetChildAtPointSkip)
Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
A Point that contains the coordinates where you want to look for a control. Coordinates are expressed relative to the upper-left corner of the control's client area.
Available since 2.0