Location: Symbol Reference > Classes > TJwHash Class > TJwHash Methods > RetrieveHash Method > TJwHash.RetrieveHash Method (Cardinal)
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TJwHash.RetrieveHash Method (Cardinal)
TJwHash Class  TJwHash Members  RetrieveHash Method  Send Feedback
Pascal
function RetrieveHash(out Len: Cardinal): Pointer; overload;
Parameters
Parameters 
Description 
out Len: Cardinal 
Returns the size of the hash  
Returns

Pointer to a buffer containing the hash

Description

RetrieveHash computes the hash of the data previously added to the hash using HashData . After a successful call to this function you cannot add more data to the hash. Any additional calls to HashData will fail. The buffer returned by this function must be freed using FreeBuffer .

Exceptions
Exceptions 
Description 
EJwsclHashApiException 
will be raised if the underlying Windows call fails. 
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