Function 24: Set Alternate Subroutine Call Mask and Address (35365)
The information in this article applies to:
- Microsoft Mouse driver for MS-DOS 9.0
- Microsoft Mouse driver for MS-DOS 6.x
- Microsoft Mouse driver for MS-DOS 7.x
- Microsoft Mouse driver for MS-DOS 8.x
This article was previously published under Q35365 SUMMARY
Function 24 sets the interrupt call mask and user subroutine address
for mouse hardware interrupts. Subroutine calls using Function 24
allow the called routine to be reentrant; that is, the subroutine
called can itself make interrupt calls.
Input Output
AX = 24 AX = error status (-1 if error
occurred)
CX = user interrupt call mask
ES: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
Note: One of at least bits 5,6,7 must be set in order for this function
to work properly.
| Modification Type: | Major | Last Reviewed: | 9/24/2003 |
|---|
| Keywords: | KB35365 |
|---|
|