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Part 1 - Classes and Methods / ODStorageUnitView

SetOffset

The SetOffset method sets the offset of the focused value.

void SetOffset (in ODULong offset);

offset

The new offset (in bytes) of the read/write position from the beginning of the data stream in the focused value, expressed as an unsigned 32-bit value.

DISCUSSION

You can call this method if you want to read or write data at a particular position in the focused value. An offset of 0 means the beginning of the data stream corresponding to the focused value; an offset equal to the current size of the focused value (as returned by the GetSize method) means the end of the data stream. You may not specify an offset larger than the current size of the focused value.

EXCEPTIONS

kODErrUnfocusedStorageUnit

The focus context of this storage-unit view is not a value.

If the storage-unit cursor for this storage-unit view does not represent a legal focus context for the storage unit that created this storage-unit view, this method throws exceptions raised by the FocusWithCursor method of that storage unit.

SEE ALSO

The ODStorageUnitView::GetOffset method (page 738).
The ODStorageUnitView::GetSize method (page 742).

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