Function 25: Get User Alternate Interrupt Address

ID: Q35366

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 25 returns the interrupt address of the alternate mouse user subroutine identified by the specified call mask. Function 25 may be used prior to a call to Function 24 to retrieve, and later restore, the last alternate interrupt subroutine address.

Input                             Output

AX = 25                           CX = user interrupt call mask
CX = user interrupt call mask     BX:DX = user subroutine address

Mask Bit                          Condition

0                                 Cursor position changes
1                                 Left button pressed
2                                 Left button released
3                                 Right button pressed
4                                 Right button released
5                                 SHIFT key pressed with button
6                                 CTRL key pressed with button
7                                 ALT key pressed with button
8-15                              Not used

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

Last Reviewed: September 16, 1996