Function CryptSIPGetSignedDataMsg
pub unsafe extern "system" fn CryptSIPGetSignedDataMsg(
psubjectinfo: *mut SIP_SUBJECTINFO,
pdwencodingtype: *mut CERT_QUERY_ENCODING_TYPE,
dwindex: u32,
pcbsigneddatamsg: *mut u32,
pbsigneddatamsg: *mut u8,
) -> BOOL