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- .BIN file to be loaded from within dBASE III PLUS (or Developer's Release) to
- verify that a disk drive has a disk in it before trying to write to it. The
- program expects to be passed a character variable (not a constant) and returns
- an 'X' in that variable if an error occurred (if the disk isn't ready). This
- is done by calling the BIOS routine to verify a specific disk sector. If this
- can't be done, an error is returned without relying on DOS'
- "ABORT, RETRY, IGNORE" message.
-
- To use it from within dBASE III PLUS, type:
-
- LOAD DISK
- STORE 'A' TO drivename && for example
- CALL DISK WITH drivename
- IF drivename = 'X'
- DO error routine
- ELSE
- DO whatever
- ENDIF
-
- (This was taken from DISK.ASM, which is all that came with the file
- DISK.BIN in the way of documentation. Note that the code above works for
- dBASE IV just fine ... Ken)