Inside Macintosh: OpenDoc Class Reference /

Part 1 - Classes and Methods / ODStorageUnit

DeleteValue

The DeleteValue method deletes data from the currently focused value, starting at the offset (inclusive).

void DeleteValue (in ODULong length);

length

The number of bytes of data to delete, expressed as an unsigned 32-bit value.

DISCUSSION

You call this method to delete data from the currently focused value. If that value is a promise value, the promise is fulfilled before the data is deleted. This method starts deleting data at the current offset and stops after deleting the number of bytes specified by the length parameter or after reaching the end of the data in the currently focused value, whichever comes first.

EXCEPTIONS

kODErrUnfocusedStorageUnit

This storage unit is not focused on a value.

kODErrZeroRefCount

This storage unit has a reference count of 0.

SEE ALSO

The ODStorageUnit::InsertValue method (page 701).
The ODStorageUnit::Remove method (page 707).
"Manipulating the Data in a Value" on page 276 in OpenDoc Programmer's Guide.

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