GdPicture image identifier.
Example





In This Topic
GdPicture14 Namespace / GdPictureImaging Class / DetachThumbnail Method

DetachThumbnail Method (GdPictureImaging)

In This Topic
Detaches a thumbnail bitmap to a GdPicture image.
Syntax
'Declaration
 

Public Function DetachThumbnail( _
   ByVal ImageID As Integer _
) As GdPictureStatus
public GdPictureStatus DetachThumbnail( 
   int ImageID
)
public function DetachThumbnail( 
    ImageID: Integer
): GdPictureStatus; 
public function DetachThumbnail( 
   ImageID : int
) : GdPictureStatus;
public: GdPictureStatus DetachThumbnail( 
   int ImageID
) 
public:
GdPictureStatus DetachThumbnail( 
   int ImageID
)

Parameters

ImageID
GdPicture image identifier.

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