static void TestStream()
{
const string IMAGE_FILE = @"test.jpg";
const string THUMB_STREAM = "thumb";
//List all of the alternative streams for the file:
NTFS.FileStreams FS = new NTFS.FileStreams(IMAGE_FILE);
Console.WriteLine(FS.FileName);
foreach (NTFS.StreamInfo s in FS)
{
Console.WriteLine("\t" + s.Name);
}
//Using an alternative stream to store a thumbnail image:
System.Drawing.Image thm;
System.IO.FileStream FileStream;
int i = FS.IndexOf(THUMB_STREAM);
if (i == -1)
{
//Thumbnail stream not found - create and store the thumbnail:
Console.WriteLine("Creating thumbnail:");
System.Drawing.Image img = System.Drawing.Image.FromFile(IMAGE_FILE);
int Width = 100; int Height = 100;
//Maintain aspect ratio:
int lW = (int)(img.Width * Height / img.Height);
int lH = (int)(img.Height * Width / img.Width);
if (lW > Width)
{
Height = lH;
}
else if (lH > Height)
{
Width = lW;
}
thm = img.GetThumbnailImage(Width, Height, null, IntPtr.Zero);
//Save the thumbnail to the stream
FS.Add(THUMB_STREAM);
FileStream = FS[THUMB_STREAM].Open(System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
thm.Save(FileStream, System.Drawing.Imaging.ImageFormat.Jpeg);
FileStream.Close();
Console.WriteLine("Created thumbnail: Size {0}x{1}", thm.Width, thm.Height);
}
else
{
//Thumbnail stream exists - read the thumbnail back
Console.WriteLine("Thumbnail already exists!");
FileStream = FS[THUMB_STREAM].Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
thm = System.Drawing.Image.FromStream(FileStream);
FileStream.Close();
Console.WriteLine("Read thumbnail: Size {0}x{1}", thm.Width, thm.Height);
//Remove the thumbnail stream, for demo purposes only!
FS.Remove(THUMB_STREAM);
}
}
static void TestStream()
{
const string IMAGE_FILE = @"..\..\test.jpg";
const string THUMB_STREAM = "thumb";
//List all of the alternative streams for the file:
NTFS.FileStreams FS = new NTFS.FileStreams(IMAGE_FILE);
Console.WriteLine(FS.FileName);
foreach(NTFS.StreamInfo s in FS) Console.WriteLine("\t" + s.Name);
//Using an alternative stream to store a thumbnail image:
System.Drawing.Image thm;
System.IO.FileStream FileStream;
int i = FS.IndexOf(THUMB_STREAM);
if (i==-1)
{
//Thumbnail stream not found - create and store the thumbnail:
Console.WriteLine("Creating thumbnail:");
System.Drawing.Image img = System.Drawing.Image.FromFile(IMAGE_FILE);
int Width = 100; int Height = 100;
//Maintain aspect ratio:
int lW = (int)(img.Width * Height / img.Height);
int lH = (int)(img.Height * Width / img.Width);
if (lW>Width) Height = lH;
else if (lH>Height) Width = lW;
thm = img.GetThumbnailImage(Width, Height, null, IntPtr.Zero);
//Save the thumbnail to the stream
FS.Add(THUMB_STREAM);
FileStream = FS[THUMB_STREAM].Open(System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
thm.Save(FileStream, System.Drawing.Imaging.ImageFormat.Jpeg);
FileStream.Close();
Console.WriteLine("Created thumbnail: Size {0}x{1}", thm.Width, thm.Height);
}
else
{
//Thumbnail stream exists - read the thumbnail back
Console.WriteLine("Thumbnail already exists!");
FileStream = FS[THUMB_STREAM].Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
thm = System.Drawing.Image.FromStream(FileStream);
FileStream.Close();
Console.WriteLine("Read thumbnail: Size {0}x{1}", thm.Width, thm.Height);
//Remove the thumbnail stream, for demo purposes only!
FS.Remove(THUMB_STREAM);
}
}
