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<TITLE>Int 33/AX=0000h
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Int 33/AX=0000h - MS MOUSE - RESET DRIVER AND READ STATUS -
AX = 0000h
Return: AX = status
0000h hardware/driver not installed
FFFFh hardware/driver installed
BX = number of buttons
0000h other than two
0002h two buttons (many drivers)
0003h Mouse Systems/Logitech three-button mouse
FFFFh two buttons
Notes: since INT 33 might be uninitialized on old machines, the caller
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<h2>Int 33/AX=0000h
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<h3><font color=#C00040>MS MOUSE - RESET DRIVER AND READ STATUS</font></h3>
<PRE>
AX = 0000h<br>
<p><b>Return:</b><br>AX = status
0000h hardware/driver not installed
FFFFh hardware/driver installed
BX = number of buttons
0000h other than two
0002h two buttons (many drivers)
0003h Mouse Systems/Logitech three-button mouse
FFFFh two buttons
</PRE>
<p><b>Notes:</b>
Since INT 33 might be uninitialized on old machines, the caller
should first check that INT 33 is neither 0000h:0000h nor points at
an IRET instruction (BYTE CFh) before calling this API.
To use mouse on a Hercules-compatible monographics card in graphics
mode, you must first set 0040h:0049h to 6 for page 0 or 5 for page 1,
and then call this function. Logitech drivers v5.01 and v6.00
reportedly do not correctly use Hercules graphics in dual-monitor
systems, while version 4.10 does..
The Logitech mouse driver contains the signature string "LOGITECH"
three bytes past the interrupt handler; many of the Logitech mouse
utilities check for this signature..
Logitech MouseWare v6.30 reportedly does not support CGA video modes
if no CGA is present when it is started and the video board is
later switched into CGA emulation
<p><b>See Also:</b>
<a href="rb-5974.htm" tppabs="http://www.ctyme.com/intr/rb-5974.htm">AX=0011h</a> - <a href="rb-5990.htm" tppabs="http://www.ctyme.com/intr/rb-5990.htm">AX=0021h</a> - <a href="rb-6005.htm" tppabs="http://www.ctyme.com/intr/rb-6005.htm">AX=002Fh</a> - <a href="rb-7029.htm" tppabs="http://www.ctyme.com/intr/rb-7029.htm">INT 62/AX=007A
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<b>Category: <a href="cat-025.htm" tppabs="http://www.ctyme.com/intr/cat-025.htm">
Mouse/Pointing Device</a>
- <a href="int-33.htm" tppabs="http://www.ctyme.com/intr/int-33.htm">
Int 33h</a>
- <a href="alpha-m.htm" tppabs="http://www.ctyme.com/intr/alpha-m.htm">
M</a>
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