Methods For Allowing Applications To Filter Out Or Opt Into Tablet Input

• US 20110216028A1
• Filed: 05/17/2011
• Published: 09/08/2011
• Est. Priority Date: 04/22/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Durojaiye, Olumuyiwa M., Zotov, Alexander J., Landstad, Todd M., Dodge, Steven P., Townsend, Reed L., Rangasamy, Vijayakumar, Wick, Stefan
• Granted Patent: US 8,803,824 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers

Abstract

Methods and systems for enabling a tablet input object is described. A tablet input object can take various inputs from touch, a mouse, and a pen and send their information to an application.

Claims

1. A method for handling tablet input, the method comprising:

receiving a message, including a signature from a digitizer, that differentiates between touch input, made via a finger, and pen input;

exchanging the received message with an input sink of a client side application;

determining that the received message represents touch input made via a finger based upon a tablet name, wherein a portion of the tablet name includes a term identifying the tablet as a touch tablet; and

when a determination has been made that touch input, made via a finger, has been received, the client side application providing a touch specific option and disabling areas of a user interface not affected by touch input.

2. The method of claim 1, wherein the exchanging of the received message with an input sink of a client side application comprises using out of process remote procedure calls.

3. The method of claim 1, further comprising receiving touch input and forwarding a mouse event to the client side application.

4. The method of claim 3, further comprising storing additional information in the mouse event indicating that the mouse event was generated based on touch input.

5. A method for handling tablet input, the method comprising:

receiving a message, including a signature from a digitizer, that differentiates between touch input, made via a finger, and a mouse event;

exchanging the received message with an input sink of a client side application;

determining that the received message represents touch input made via a finger based upon a tablet name, wherein a portion of the tablet name includes a term identifying the tablet as a touch tablet;

generating mouse events including a touch signature from the digitizer based on touch input,

passing the mouse events to the client side application; and

upon a determination that touch input, made via a finger, has been received, the client side application providing a touch specific option.

6. The method of claims 5, further comprising modifying a user interface when the mouse event was created from touch input to the digitizer.

7. The method of claims 6, further comprising modifying the user interface to disable areas of the user interface not affected by touch input.

8. The method of claims 6, further comprising modifying the user interface to prevent touch from controlling at least a part of the user interface.

9. The method of claims 5, further comprising restarting an inking client.

10. The method of claims 5, further comprising allowing programmatical control by an application programming interface when touch is enabled.

11. The method of claims 5, further comprising handling touch messages as pen messages.

12. The method of claims 5, further comprising controlling touch modes.

13. The method of claims 5, further comprising disabling of touch input when additional information in a message indicates touch should be disabled.

14. The method of claims 5, further comprising disabling of touch input when a request to disable touch comes from a touch ink stream.

15. The method of claims 5, further comprising determining when a palm has contacted the digitizer and ignoring said contact.

16. The method of claim 5, further comprising handling touch input as both pen input and mouse input.

17. The method of claims 5, further comprising exchanging information with the client side application using a shared memory.

18. The method of claims 5, wherein the touch signature differs from a pen signature by one bit, further comprising determining both pen input and touch input and differencing between pen input and touch input based on said one bit.

19. A computer readable storage medium comprising computer executable instructions that when executed by a processor cause said processor to perform a method for handling tablet input, the method comprising:

receiving a message, including a signature from a digitizer, that differentiates between touch input, made via a finger, and a mouse event;

exchanging the received message with an input sink of a client side application;

determining that the received message represents touch input made via a finger based upon a tablet name, wherein a portion of the tablet name includes a term identifying the tablet as a touch tablet;

generating mouse events including a touch signature from the digitizer based on touch input;

passing the mouse events to the client side application; and

upon a determination that touch input, made via a finger, has been received, the client side application providing a touch specific option.

20. The computer readable storage medium of claim 19, further comprising instructions for:

modifying a user interface when the mouse event was created from touch input to the digitizer.