Inside Macintosh: Files /

Chapter 5 - Disk Initialization Manager / Disk Initialization Manager Reference

Routines / Low-Level Disk Initialization Routines

DIVerify

To verify a disk you have formatted, you can use the DIVerify function.

FUNCTION DIVerify (drvNum: Integer): OSErr;

drvNum

The number of the drive containing the disk to be verified.

DESCRIPTION

The DIVerify function verifies the format of the disk in the drive specified by the drvNum parameter. It reads each bit from the disk and returns a result code indicating whether all bits were read successfully or not. The DIVerify function does not affect the contents of the disk itself.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for DIVerify are

Trap macro	Selector
_Pack2	$0008

SPECIAL CONSIDERATIONS

You should not call DIVerify at interrupt time.

RESULT CODES

noErr	0	No error
lastDskErr	-64	Last of the range of low-level disk errors
...
firstDskErr	-84	First of the range of low-level disk errors