Gets a unsigned 64-bit integer contained within the attribute. If the attribute does not contain an unsigned 64-bit integer, or is invalid, 0 will be returned.
a file attribute key.
Return: a unsigned 64-bit integer from the attribute.
See Implementation
Gets a unsigned 64-bit integer contained within the attribute. If the attribute does not contain an unsigned 64-bit integer, or is invalid, 0 will be returned.