Function RegQueryValueExA

pub unsafe fn RegQueryValueExA<P1>(
    hkey: HKEY,
    lpvaluename: P1,
    lpreserved: Option<*const u32>,
    lptype: Option<*mut REG_VALUE_TYPE>,
    lpdata: Option<*mut u8>,
    lpcbdata: Option<*mut u32>,
) -> WIN32_ERROR
where
    P1: Param<PCSTR>,