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Copyright 1991 David Jurgens |
INT 33,21 - Reset Mouse Software
AX = 21h
on return:
AX = 0021 mouse driver not installed
FFFF mouse driver installed
BX = 2 mouse driver installed
- similar to INT 33,0 but does not reset the mouse hardware or
display variables
- both AX and BX must be correct for successful reset
- interrupt routines set through INT 33,18 are preserved
- resets the mouse to the following defaults:
. mouse is positioned to screen center
. mouse cursor is reset and hidden
. no interrupts are enabled (mask = 0)
. double speed threshold set to 64 mickeys per second
. horizontal mickey to pixel ratio (8 to 8)
. vertical mickey to pixel ratio (16 to 8)
. max width and height are set to maximum for video mode
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| Esc or Alt-X to exit |
int 33,21 |
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