SetupQueryInfVersionInformation  1SVF_H. 

[New - Windows NT]

The SetupQueryInfVersionInformation function returns INF file version information from an SP_INF_INFORMATION_LVXGE structure to a caller-supplied buffer.

BOOL SetupQueryInfVersionInformation(

Parameters

InfInformation

Points to an SP_INF_INFORMATION structure previously returned from a call to the SetupGetInfInformationLCA0LF function.

InfIndex

Specifies the index of the constituent INF file to retrieve version information from. This index can be in the range [0, InfInformation.InfCount).   Meaning that the values zero through, but not including, InfInformation.InfCount are valid.

Key

An optional parameter that points to a null-terminated string containing the key name whose associated string is to be retrieved. If this parameter is NULL, all resource keys are copied to the supplied buffer. Each string is null-terminated, with an extra null at the end of the list.

ReturnBuffer

If not NULL, ReturnBuffer points to a call-supplied character buffer in which this function returns the INF file style.

ReturnBufferSize

Specifies the size of the buffer pointed to by the ReturnBuffer parameter.

RequiredSize

If not NULL, points to a caller-supplied variable in which this function returns the size required for the buffer pointed to by the ReturnBuffer parameter. If ReturnBuffer is specified and the actual size is larger than the value specified by ReturnBufferSize, the function fails and a call to GetLastError11C2VS7 returns ERROR_INSUFFICIENT_BUFFER.

Return Values

If the function succeeds, the return value is TRUE.

If the function fails, the return value is FALSE. To get extended error information, call GetLastError11C2VS7.

Remarks

For the Unicode version of this function, the buffer sizes ReturnBufferSize, and ReturnRequiredSize are specified in number of characters. This number includes the null terminator. For the ANSI version of this function, the sizes are specified in number of bytes.

If this function is called with a ReturnBuffer of NULL and a ReturnBufferSize of zero, the function puts the buffer size needed to hold the specified data into the variable pointed to by RequiredSize. If the function succeeds in this, the return value is TRUE. Otherwise, the return value is FALSE and extended error information can be obtained by calling GetLastError11C2VS7.

Thus, you can call the function once to get the required buffer size, allocate the necessary memory, and then call the function a second time to retrieve the data. Using this technique, you can avoid errors due to an insufficient buffer size.

If SetupQueryInfVersionInformation is called on a Windows NT 3.x INF file, then version information is generated from the Windows NT 3.x INF file in the following manner:

  1.  The OptionType key in the Identification section of the Windows NT 3.x INF file is returned as the Class key value.

  2.  The FileType key in the Signature section of the Windows NT 3.x INF file becomes the Signature key value.

  3.  If the value of the FileType key of the Windows NT 3.x INF file is MICROSOFT_FILE, then the Provider key value is set to  Microsoft .

The following table summarizes how the information is translated before it is passed into the SP_INF_INFORMATION structure.

See Also