Casio IT-2000D - Manual (Page 124)

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Startup Method
This utility is included in the SDK. Since this is a memory-resident type COM execution file,
it should only be used if it resides in memory.
Startup Option
Format: SYSDRVP [Options]
Options /R Releases residence, if it is currently resident.
/H1=code Specifies a hot key which displays internal status. Code of the hot
key can be specified by a value in hexadecimal number which is
returned with INT16 (AH=10h). When this option is omitted, the
operation is the same with that of which “/H1 = 4300” is specified.
/H2=code Specifies a hot key which displays status change menu. Code of the
hot key can be specified by a value in hexadecimal number which
is returned with INT16 (AH=10h). When this option is omitted, the
operation will be the same with that of which “/H2 = 4400” is
specified.
Termination Codes and Messages
Termination code Message Description
00 NORMAL END End normally.
01 ABNORMAL END Parameter error.