winapi_ui_automation::um::setupapi

Function SetupDiOpenClassRegKeyExA

Source 
pub unsafe extern "system" fn SetupDiOpenClassRegKeyExA(
    ClassGuid: *const GUID,
    samDesired: REGSAM,
    Flags: DWORD,
    MachineName: PCSTR,
    Reserved: PVOID,
) -> HKEY