Function crypt32::CryptExportPKCS8

pub unsafe extern "system" fn CryptExportPKCS8(
    hCryptProv: HCRYPTPROV, 
    dwKeySpec: DWORD, 
    pszPrivateKeyObjId: LPSTR, 
    dwFlags: DWORD, 
    pvAuxInfo: *mut c_void, 
    pbPrivateKeyBlob: *mut BYTE, 
    pcbPrivateKeyBlob: *mut DWORD
) -> BOOL