SHEnumValueA function (shlwapi.h)
Enumerates the values of the specified open registry key.
LSTATUS SHEnumValueA( [in] HKEY hkey, [in] DWORD dwIndex, PSTR pszValueName, [in, out, optional] LPDWORD pcchValueName, [out, optional] LPDWORD pdwType, void *pvData, [in, out, optional] LPDWORD pcbData );
A handle to the currently open key, or any of the following predefined values.
The index of the value to retrieve. This parameter should be zero for the first call and incremented for subsequent calls.
The address of a character buffer that receives the enumerated value name. The size of this buffer is specified in pcchValueName.
[in, out, optional] pcchValueName
The address of a DWORD that, on entry, contains the size of the buffer at pszValueName, in characters. On exit, this contains the number of characters that were copied to pszValueName.
[out, optional] pdwType
The address of a DWORD that receives the data type of the value. These are the same values as those described under the lpType parameter of RegEnumValue.
The address of a buffer that receives the data for the value entry. The size of this buffer is specified in pcbData. This parameter can be NULL if the data is not required.
[in, out, optional] pcbData
The address of a DWORD that, on entry, contains the size of the buffer at pvData, in bytes. On exit, this contains the number of bytes that were copied to pvData.
Returns ERROR_SUCCESS if successful, or a nonzero error code defined in Winerror.h otherwise. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to retrieve a textual description of the error.
The shlwapi.h header defines SHEnumValue as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
|Minimum supported client||Windows 2000 Professional, Windows XP [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|DLL||Shlwapi.dll (version 4.71 or later)|