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CryptCATCDFEnumMembersByCDFTagEx function

[The CryptCATCDFEnumMembersByCDFTagEx function is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]

The CryptCATCDFEnumMembersByCDFTagEx function enumerates the individual file members in the CatalogFiles section of a catalog definition file (CDF). CryptCATCDFEnumMembersByCDFTagEx is called by MakeCat.

Note  This function has no associated header file or import library. To call this function, you must create a user-defined header file and use the LoadLibrary and GetProcAddress functions to dynamically link to Mssign32.dll.

Syntax


LPWSTR WINAPI CryptCATCDFEnumMembersByCDFTagEx(
  _In_     CRYPTCATCDF *pCDF,
  _Inout_  LPWSTR pwszPrevCDFTag,
  _In_     PFN_CDF_PARSE_ERROR_CALLBACK pfnParseError,
  _In_     CRYPTCATMEMBER **ppMember,
  _In_     BOOL fContinueOnError,
  _In_     LPVOID pvReserved
);

Parameters

pCDF [in]

A pointer to a CRYPTCATCDF structure.

pwszPrevCDFTag [in, out]

A pointer to a null-terminated string that identifies the catalog file member.

pfnParseError [in]

A pointer to a user-defined function to handle file parse errors.

ppMember [in]

A pointer to a CRYPTCATMEMBER structure that contains the file member information.

fContinueOnError [in]

A value that specifies whether to keep in memory a reference to the last enumerated member.

pvReserved [in]

This parameter is reserved; do not use it.

Return value

Upon success, this function returns a pointer to a null-terminated string that identifies a file member in the CatalogFiles section of a CDF. The CryptCATCDFEnumMembersByCDFTagEx function returns a NULL pointer if it fails.

Remarks

You typically call this function in a loop to enumerate all of the catalog file members in a CDF. Before entering the loop, set pwszPrevCDFTag to NULL. The function returns a pointer to the first member. Set pwszPrevCDFTag to the return value of the function for subsequent iterations of the loop.

Examples

The following example shows the correct sequence of assignments for the pwszPrevCDFTag parameter (pwszMemberTag).


    CRYPTCATMEMBER      *pMember;
    LPWSTR              pwszMemberTag;
    CRYPTCATCDF         *pCDF;

    pCDF = CryptCATCDFOpen(L'myCDF', NULL);
    

    pMember = NULL;
    pwszMemberTag = NULL;

    while (pwszMemberTag = CryptCATCDFEnumMembersByCDFTagEx(pCDF,
                                                            pwszMemberTag,
                                                            NULL,
                                                            &pMember,
                                                            FALSE,
                                                            NULL))
    {
        //do something with pwszMemberTag and pMember
    }

    CryptCATCDFClose(pCDF);

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

DLL

Wintrust.dll

See also

MakeCat
CRYPTCATCDF
CRYPTCATMEMBER
GetProcAddress
LoadLibrary

 

 

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