DBStructDef :: GetKeySMCB - Get definition for key structure
The function returns the definition (smcb) for the identifying key. When no identifying has been defined, the function returns NULL.
Return value: Pointer to general structure definition ( smcb * )
The smcb is general way to define any type of structure. It contains information for the structure and its properties. The definition does contain only descriptive information (no access information).