Reference Guide
GdPicture14 Namespace / GdPictureImaging Class / AttachThumbnail Method
GdPicture image identifier.
GdPicture image identifier. The thumbnail bitmap.
Example





In This Topic
    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.
    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