Changeset 2187 for trunk/eraser/Eraser.Util/NativeMethods/Kernel.cs

Timestamp:

6/18/2010 11:33:59 AM (2 years ago)

Author:

lowjoel

Message:

Allow us to query the size of non-ready partitions and disks (for more informative UIs)

File:

• trunk/eraser/Eraser.Util/NativeMethods/Kernel.cs (modified) (1 diff)

trunk/eraser/Eraser.Util/NativeMethods/Kernel.cs

@@ -675 +675 @@
         }
 
+        [DllImport("Kernel32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        private extern static bool DeviceIoControl(SafeFileHandle hDevice,
+            uint dwIoControlCode, IntPtr lpInBuffer, uint nInBufferSize,
+            out long lpOutBuffer, uint nOutBufferSize, out uint lpBytesReturned,
+            IntPtr lpOverlapped);
+
+        public static bool DeviceIoControl(SafeFileHandle hDevice,
+            uint dwIoControlCode, IntPtr lpInBuffer, uint nInBufferSize,
+            out long lpOutBuffer, out uint lpBytesReturned, IntPtr lpOverlapped)
+        {
+            return DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize,
+                out lpOutBuffer, sizeof(long), out lpBytesReturned, lpOverlapped);
+        }
+
+        /// <summary>
+        /// Retrieves the length of the specified disk, volume, or partition.
+        /// </summary>
+        public const int IOCTL_DISK_GET_LENGTH_INFO =
+            (0x00000007 << 16) | (0x0001 << 14) | (0x0017 << 2);
+
         [DllImport("Kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
         [return: MarshalAs(UnmanagedType.Bool)]