Should DWORD map to int or uint?

user_541686 0
Viewed 46716

When translating the Windows API (including data types) into P/Invoke, should I replace DWORD with int or uint?

It's normally unsigned, but I see people using int everywhere instead (is it just because of the CLS warning? even the .NET Framework itself does this), and so I'm never really sure which one is the correct one to use.

dword pinvoke winapi .net c#
7 Answers
user_6396870

Sadly,read Registry must use int otherwise throw exception.this microsoft code:

private static void Get45or451FromRegistry()
{
    using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
        if (ndpKey != null && ndpKey.GetValue("Release") != null) {
            Console.WriteLine("Version: " + CheckFor45DotVersion((int) ndpKey.GetValue("Release")));
        }
      else {
         Console.WriteLine("Version 4.5 or later is not detected.");
      } 
    }
}

although release is REG_DWORD

user_83418490
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