| Platform SDK: Logon Authentication | 
The SecPkgCredentials_Names structure holds the name of the user associated with a context. The QueryCredentialsAttributes function uses this structure.
typedef struct _SecPkgCredentials_Names {
      SEC_CHAR *  sUserName;
} SecPkgCredentials_Names, * PSecPkgCredentials_Names;
  Windows NT/2000: Requires Windows NT 3.51 or later.
  Windows 95/98: Requires Windows 95 or later.
  Header: Declared in Sspi.h; include Security.h.
  Unicode: Declared as Unicode and ANSI structures.