Using thumbnail image data

There is an option to write image data for the exported Vault entity into the DI – EcENTITY.thumbnail. To save the image to disk, cast sql value as byte array and write this data as jpg file.

To get an .NET FRAMEWORK System.Drawing.Image object you can use this sample:

/// <summary>
/// 
http://justonesandzeros.typepad.com/blog/2011/05/viewing-thumbnails.html

/// </summary>
/// <param name="propVal">the value of the property Thumbnail</param>
/// <param name="width">image width</param>
/// <param name="height">image height</param>
/// <returns></returns>
public static System.Drawing.Image GetThumbnail(object propVal, int width, int height)
{
if (propVal == null || false == (propVal is byte[])) return null;
byte[] thumbnailRaw = (byte[])propVal; System.Drawing.Image retVal = null;
using (System.IO.MemoryStream ms = new System.IO.MemoryStream(thumbnailRaw))
{
try
{
}
ms.Seek(12, System.IO.SeekOrigin.Begin); System.Drawing.Imaging.Metafile metafile =
new System.Drawing.Imaging.Metafile(ms); retVal = metafile.GetThumbnailImage(width, height,
new System.Drawing.Image.GetThumbnailImageAbort(GetThumbnailImageAbort), System.IntPtr.Zero);
catch
{
retVal = null;
}
if (retVal == null)
{
try
{
}
ms.Seek(0, System.IO.SeekOrigin.Begin);
System.Drawing.Image rawImage = System.Drawing.Image.FromStream(ms, true); retVal = rawImage.GetThumbnailImage(width, height,
new System.Drawing.Image.GetThumbnailImageAbort(GetThumbnailImageAbort), System.IntPtr.Zero);
catch
{
retVal = null;
}
}
}
return retVal;
}