ITouchPoint
Represents the interface for the data of a single touch point.
Gets the x-coordinate relative to the client.
Gets the y-coordinate relative to the client.
Gets the id of the touch point.
Gets the x-coordinate relative to the page.
Gets the y-coordinate relative to the page.
Gets the x-coordinate relative to the screen.
Gets the y-coordinate relative to the screen.
Gets the target of the touch point.