Microsoft KB Archive/35369

Function 28: Set Mouse Interrupt Rate PSS ID Number: Q35369 Article last modified on 05-14-1993 PSS database name: H_Mouse

6.x 7.x 8.x 9.00

MS-DOS

The information in this article applies to:

- Microsoft Mouse Driver for MS-DOS, versions 6.x, 7.x, 8.x, and 9.0

Summary:

Function 28 operates only with the InPort mouse. Function 28 sets the rate at which the mouse driver polls the status of the mouse. Faster interrupt rates provide better resolution in graphics applications. Slower interrupt rates may allow applications to run faster.

Input Output

AX = 28 none BX = interrupt rate

Rate value fo BX: Maximum interrupt rate

0 No interrupts allowed 1 30 interrupts/second rate 2 50 interrupts/second rate 3 100 interrupts/second rate 4 200 interrupts/second rate

Additional reference words: 7.00 7.04 7.05 8.00 8.10 1.00 8.20 9.00

Copyright Microsoft Corporation 1993.