The EFS_ENCRYPTION_STATUS_INFO structure is used to represent the predicted outcome if an attempt were made to convert an unencrypted object to an encrypted state.

 typedef struct {
   BOOL bHasCurrentKey;
   DWORD dwEncryptionError;
 } EFS_ENCRYPTION_STATUS_INFO;

bHasCurrentKey: A Boolean value signifying whether an appropriate key was found that could be used for encryption.

dwEncryptionError: The error code returned if encryption were attempted. If the operation were to succeed, this value MUST be zero. Otherwise, it MUST be set to a nonzero value.