Function GetPrinterDataExA 

pub unsafe extern "system" fn GetPrinterDataExA(
    hprinter: PRINTER_HANDLE,
    pkeyname: PCSTR,
    pvaluename: PCSTR,
    ptype: *mut u32,
    pdata: *mut u8,
    nsize: u32,
    pcbneeded: *mut u32,
) -> u32