Touch input data handling

摘要

A system for enabling a tablet input object is described. A tablet input object can take various inputs from touch, a mouse, and a pen and sends their information to an application or operating system. Also, a pen message pathway may also be used to handle touch messages, thereby reusing an existing pen message pathway for messages created by something other than a pen.

主权项

1. A computer-readable storage device comprising computer executable instructions that when executed by a computing device cause said computing device to perform the instructions comprising:
receiving at a module a request for one of a number of types of input devices connected to a computer system, said request originating from a requester; retrieving a pen or touch signature associated with said one type of input device from a storage; forwarding said pen or touch signature associated with said one type of input device to said requester to control the type of input device functionality available to the requester where the one type of input device is identified as a pen input device or a touch input device by the pen or touch signatures of the respective input devices; and forwarding touch packets to the requester from said one type of input device in processing streams as mouse events, said touch packets including touch input data or pen input data, a corresponding touch or pen signature, and confidence data providing at least a measure of confidence of said one type of input device that inputs to said one type of input device are intentional or accidental, said confidence data representing high confidence that any number of input contacts were intentional or a user's finger or finger nail and low confidence that any number of input contacts were accidental or a user's palm, whereby the requester differentiates data in said touch packets as pen data or touch data based on the pen or touch signatures in received touch packets.