GdPicture image identifier.
GdPicture image identifier. The thumbnail bitmap.
Example





In This Topic
GdPicture14 Namespace / GdPictureImaging Class / AttachThumbnail Method

AttachThumbnail Method (GdPictureImaging)

In This Topic
Attaches a thumbnail bitmap to a GdPicture image. If the GdPicture image already embeds a thumbnail it will be replaced.
Syntax
'Declaration

 


Public Function AttachThumbnail( _

   ByVal ImageID As Integer, _

   ByVal ThumbnailImageID As Integer _

) As GdPictureStatus
public GdPictureStatus AttachThumbnail( 

   int ImageID,

   int ThumbnailImageID

)
public function AttachThumbnail( 

    ImageID: Integer;

    ThumbnailImageID: Integer

): GdPictureStatus; 
public function AttachThumbnail( 

   ImageID : int,

   ThumbnailImageID : int

) : GdPictureStatus;
public: GdPictureStatus AttachThumbnail( 

   int ImageID,

   int ThumbnailImageID

) 
public:

GdPictureStatus AttachThumbnail( 

   int ImageID,

   int ThumbnailImageID

)

Parameters

ImageID
GdPicture image identifier.
ThumbnailImageID
GdPicture image identifier. The thumbnail bitmap.

Return Value

A member of the GdPictureStatus enumeration.
Remarks

This method requires the Image Documents component to run.

Example
Removing the existing thumbnail and creating and attaching a new one to a GdPicture image. 
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())

{

    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg");

 

    int thumbnailID = 0;

    if (gdpictureImaging.HasAttachedThumbnail(imageID))

    {

        // Get the already attached thumbnail and save it as an image, then detach it.

        thumbnailID = gdpictureImaging.GetAttachedThumbnail(imageID);

        gdpictureImaging.SaveAsJPEG(thumbnailID, "thumbnail.jpg", 75);

        gdpictureImaging.DetachThumbnail(imageID);

        gdpictureImaging.ReleaseGdPictureImage(thumbnailID);

    }

 

    // Create a new thumbnail with a system-defined size and attach it to an image.

    thumbnailID = gdpictureImaging.CreateThumbnail(imageID, 0, 0);

    gdpictureImaging.AttachThumbnail(imageID, thumbnailID);

 

    // Release used resources.

    gdpictureImaging.ReleaseGdPictureImage(thumbnailID);

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members
HasAttachedThumbnail Method