'Declaration
 
Public Overloads Shared Function GetDocumentPreview( _
   ByVal FilePath As String, _
   ByVal ThumbnailWidth As Integer, _
   ByVal ThumbnailHeight As Integer, _
   ByVal BackColor As Integer, _
   ByRef DocumentFormat As DocumentFormat, _
   ByRef ThumbnailID As Integer, _
   ByRef PageCount As Integer _
) As GdPictureStatus

public static GdPictureStatus GetDocumentPreview( 
   string FilePath,
   int ThumbnailWidth,
   int ThumbnailHeight,
   int BackColor,
   ref DocumentFormat DocumentFormat,
   ref int ThumbnailID,
   ref int PageCount
)

public function GetDocumentPreview( 
    FilePath: String;
    ThumbnailWidth: Integer;
    ThumbnailHeight: Integer;
    BackColor: Integer;
   var  DocumentFormat: DocumentFormat;
   var  ThumbnailID: Integer;
   var  PageCount: Integer
): GdPictureStatus; static; 

public static function GetDocumentPreview( 
   FilePath : String,
   ThumbnailWidth : int,
   ThumbnailHeight : int,
   BackColor : int,
   DocumentFormat : DocumentFormat,
   ThumbnailID : int,
   PageCount : int
) : GdPictureStatus;

public: static GdPictureStatus GetDocumentPreview( 
   string* FilePath,
   int ThumbnailWidth,
   int ThumbnailHeight,
   int BackColor,
   ref DocumentFormat DocumentFormat,
   ref int ThumbnailID,
   ref int PageCount
) 

public:
static GdPictureStatus GetDocumentPreview( 
   String^ FilePath,
   int ThumbnailWidth,
   int ThumbnailHeight,
   int BackColor,
   DocumentFormat% DocumentFormat,
   int% ThumbnailID,
   int% PageCount
) 

Parameters

FilePath

The full file path of the specified document.

ThumbnailWidth

The required width of the generated thumbnail of the first page, in pixels.

ThumbnailHeight

The required height of the generated thumbnail of the first page, in pixels.

BackColor

The required background color of the generated thumbnail, in ARGB format.

DocumentFormat

Output parameter. A member of the DocumentFormat enumeration. The format of the specified document.

ThumbnailID

Output parameter. The unique image identifier of a newly generated thumbnail image of the first page of the specified document. Be aware that you need to subsequently release this image from memory using the DisposeImage method after you have used it.

PageCount

Output parameter. The total number of pages of the specified document.

Return Value

Be aware that you need to release the thumbnail's image resource from memory using the DisposeImage method.

Reference

GdPictureDocumentUtilities Class
GdPictureDocumentUtilities Members
Overload List
DisposeImage Method