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<TITLE>Int 16/AH=4Bh
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Int 16/AH=4Bh - Frank Klemm Keyboard Driver v2.0 - API -
AH = 4Bh
CX = code or action
0000h-FEFFh key code
FF00h-FFFFh action (see #00594)
BL = scan code (normal keys) or scan code + 60h (enhanced keys)
BH = shift state (see #00595)
Return: CX = previous code or action
(Table 00594)
Values for Frank Klemm Keyboard Driver action code:
">
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<h2>Int 16/AH=4Bh
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<h3><font color=#C00040>Frank Klemm Keyboard Driver v2.0 - API</font></h3>
<PRE>
AH = 4Bh
CX = code or action
0000h-FEFFh key code
FF00h-FFFFh action <a href="rb-1805.htm#Table594" tppabs="http://www.ctyme.com/intr/rb-1805.htm#Table594">(see #00594)</a>
BL = scan code (normal keys) or scan code + 60h (enhanced keys)
BH = shift state <a href="rb-1805.htm#Table595" tppabs="http://www.ctyme.com/intr/rb-1805.htm#Table595">(see #00595)</a><br>
<p><b>Return:</b><br>CX = previous code or action
<p>
<a name=table594></a>
(Table 00594)
Values for Frank Klemm Keyboard Driver action code:
FF00h no action
FF01h hardcopy
FF02h left shift
FF03h right shift
FF04h left Ctrl
FF05h right Ctrl
FF06h left Alt
FF07h right Alt / AltGr
FF08h CapsLock
FF09h NumLock
FF0Ah ScrlLock
FF0Bh Insert (returns code 5200h or 52E0h)
FF0Ch Pause
FF0Dh Ctrl-Break function
FF0Eh warm boot via far jump to F000h:FFF0h
FF0Fh terminate current program
FF10h key for entering keys via Alt-numpad (read-only)
FF11h clear keyboard buffer
FF12h reset (warmboot on XT)
FF13h mouse sensitivity (read-only)
FF14h keyjobs (read-only)
FF15h SysRq
FF16h turn on CPU cache (486+)
FF17h turn off CPU cache (486+)
</PRE>
<p><b>See Also:</b>
#00595
<PRE>
<p>
<a name=table595></a>
(Table 00595)
Values for Frank Klemm Keyboard Driver shift state:
00h no shift keys
01h either Shift
02h either Ctrl
03h left Alt
04h Ctrl + Alt
---standard keyboard---
05h right Alt / AltGr
---Russian keyboard---
05h Russian + no shift keys
06h Russian + either Shift
</PRE>
<p><b>See Also:</b>
#00594
<p>
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Keyboard Enhancers</a>
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Int 16h</a>
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