c# - What does dwFlagsAndAttributes = 0 mean in the CreateFile Method?

Question

So I'm using the CreateFile function for a C# project that I'm currently working on. I've seen some examples that pass 0 as the argument for dwFlagsAndAttributes.

While I'm reading through the documentation it doesn't specify what setting dwFlagsAndAttributes = 0 entails. Is this just a way of setting no flags or attributes?

The C# syntax for this method is:

[DllImport("kernel32.dll", SetLastError = true)]
static extern SafeFileHandle CreateFile(string lpFileName, 
       FileAccess dwDesiredAccess, uint dwShareMode, IntPtr lpSecurityAttributes,
       FileMode dwCreationDisposition, uint dwFlagsAndAttributes, 
       IntPtr hTemplateFile);

Any help is greatly appreciated.

Answer 1

Yup, it just means that the file is nothing special (ie, it doesnt match any of the File Attribute Constants attributes.