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Autodocs
 Devices:
 trackdisk.device
  CMD_CLEAR
  CMD_READ
  CMD_UPDATE
  CMD_WRITE
  TD_ADDCHANGEINT
  TD_CHANGENUM
  TD_CHANGESTATE
  TD_EJECT
  TD_FORMAT
  TD_GETDRIVETYPE
  TD_GETGEOMETRY
  TD_GETNUMTRACKS
  TD_MOTOR
  TD_PROTSTATUS
  TD_RAWREAD
  TD_RAWWRITE
  TD_REMCHANGEINT
  TD_SEEK
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GuruMeditation
Docs » Autodocs » trackdisk.device » TD_CHANGENUM

NAME

	TD_CHANGENUM -- return the current value of the disk-change counter.

FUNCTION

	This command returns the current value of the disk-change counter (as
	used by the enhanced commands). The disk change counter is incremented
	each time a disk is inserted or removed from the trackdisk unit.
   IO REQUEST INPUT
	io_Device	preset by the call to OpenDevice()
	io_Unit		preset by the call to OpenDevice()
	io_Command	TD_CHANGENUM
	io_Flags	0 or IOF_QUICK
   IO REQUEST RESULT
	io_Error - 0 for success, or an error code as defined in
	           <devices/trackdisk.h>
	io_Actual - if io_Error is 0, this contains the current value of the
		    disk-change counter.

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