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