Function 20 - Swap Interrupt Subroutines (19859)
The information in this article applies to:
- Microsoft Mouse driver for MS-DOS 6.x
- Microsoft Mouse driver for MS-DOS 7.x
- Microsoft Mouse driver for MS-DOS 8.x
- Microsoft Mouse driver for MS-DOS 9.0
This article was previously published under Q19859 SUMMARY
The following is a description of Function 20: - Swap Interrupt
Subroutines (Mouse Version 6.0). Function 20 allows you to get the
address and call mask for a Mouse Function 12 subroutine or to
exchange the vector and mask.
Inputs:
AX = 20
BX = segment of new subroutine
CX = new call mask
DX = offset of new subroutine
Outputs:
BX = segment of old subroutine
CX = old call mask
DX = offset of old subroutine
For more information on mouse function subroutines, refer to the
entries on Function 12. A well-coded application returns the old
subroutine address (vector) and mask via this function when it
terminates. This function is also useful for swapping between a set of
Function 12 subroutines within an application.
| Modification Type: | Major | Last Reviewed: | 10/3/2003 |
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| Keywords: | KB19859 |
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