Get the Total Free Space on a Drive by using kernel32.dll
using System;
using System.Runtime.InteropServices;
public class GetFreeSpace {
[DllImport("kernel32.dll", EntryPoint="GetDiskFreeSpaceExA" )]
private static extern long GetDiskFreeSpaceEx(string lpDirectoryName, out long lpFreeBytesAvailableToCaller, out long lpTotalNumberOfBytes, out long lpTotalNumberOfFreeBytes);
private static void Main() {
long result, total, free, available;
result = GetDiskFreeSpaceEx("c:", out available, out total, out free);
if (result != 0) {
Console.WriteLine("Total Bytes: {0:N}", total);
Console.WriteLine("Free Bytes: {0:N}", free);
Console.WriteLine("Available Bytes: {0:N}", available);
}
}
}
