GetGenerationNumber

Inside Macintosh: OpenDoc Class Reference /: Part 1 - Classes and Methods / ODStorageUnit

GetGenerationNumber
The GetGenerationNumber method returns the generation number of the currently focused value.
ODULong GetGenerationNumber ();
return value
The generation number of the currently focused value, expressed as an unsigned 32-bit value.

DISCUSSION
You can use the generation number of a value to tell whether the data in the value has changed. For example, your part could compare the number returned by this method with a saved generation number.

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::IncrementGenerationNumber method (page 700).