Function winapi::um::wincrypt::CryptEnumProviderTypesA

pub unsafe extern "system" fn CryptEnumProviderTypesA(
    dwIndex: DWORD, 
    pdwReserved: *mut DWORD, 
    dwFlags: DWORD, 
    pdwProvType: *mut DWORD, 
    szTypeName: LPSTR, 
    pcbTypeName: *mut DWORD
) -> BOOL