Microsoft KB Archive/19858

Function 19 - Set Double Speed Threshold PSS ID Number: Q19858 Article last modified on 05-14-1993 PSS database name: H_Mouse

5.x 6.x 7.x 8.x 9.00

MS-DOS

Summary:

The following function increases the mouse cursor motion sensitivity:

FUNCTION 19: GENERAL INFO - SET DOUBLE SPEED THRESHOLD Inputs: AX = 19 DX = Threshold speed in mickeys/second Outputs: None

The default threshold value is 64 mickeys per second (.32 ips). If the mouse is moved faster than the threshold value, the cursor motion doubles in speed. Once used, this feature is always on, unless modified by another call to Function 19. It may be effectively “turned off” by setting the threshold to a speed faster than the mouse can be physically moved (10,000, for example).

Additional reference words: 7.00 7.04 7.05 8.00 8.10 8.20 9.00

Copyright Microsoft Corporation 1993.