请教一个dllcall的问题

yamakawa

原型是
§ wimlib_get_xml_data()

int wimlib_get_xml_data        (        WIMStruct *         wim,
void **         buf_ret,
size_t *         bufsize_ret 
)        

Read a WIM file's XML document into an in-memory buffer.

The XML document contains metadata about the WIM file and the images stored in it.

Parameters
wim        Pointer to the WIMStruct to query. This need not represent a standalone WIM (e.g. it could represent part of a split WIM).
buf_ret        On success, a pointer to an allocated buffer containing the raw UTF16-LE XML document is written to this location.
bufsize_ret        The size of the XML document in bytes is written to this location.
Returns
0 on success; a wimlib_error_code value on failure.
Return values
WIMLIB_ERR_NO_FILENAME        wim is not backed by a file and therefore does not have an XML document.
WIMLIB_ERR_READ        Failed to read the XML document from the WIM file.
WIMLIB_ERR_UNEXPECTED_END_OF_FILE        Failed to read the XML document from the WIM file.

如何在au3中调用