public void SaveThumbnail( 
   System.Guid id,
   System.int width,
   System.int height,
   System.Drawing.Imaging.ImageFormat imageFormat,
   System.long quality
)

Parameters

id

Record Id in the SysImage table.

width

The width of the thumbnail image.

height

The hight of the thumbnail image.

imageFormat

Image format (JPEG, PNG, BMP, etc.).

quality

The quality of the saved image (percents).

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference