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Apply Method
See Also 
Leadtools.Annotations Namespace > AnnEncryptObject Class : Apply Method




viewer
The RasterImageViewer containing the RasterImage to which to apply this AnnEncryptObject object.
Applies this AnnEncryptObject object to the image inside a given viewer.

Syntax

Visual Basic (Declaration) 
Public Overridable Sub Apply( _
   ByVal viewer As RasterImageViewer _
) 
Visual Basic (Usage)Copy Code
Dim instance As AnnEncryptObject
Dim viewer As RasterImageViewer
 
instance.Apply(viewer)
C# 
public virtual void Apply( 
   RasterImageViewer viewer
)
Managed Extensions for C++ 
public: virtual void Apply( 
   RasterImageViewer viewer
) 
C++/CLI 
public:
virtual void Apply( 
   RasterImageViewer viewer
) 

Parameters

viewer
The RasterImageViewer containing the RasterImage to which to apply this AnnEncryptObject object.

Example

For an example, refer to AnnEncryptObject.

Remarks

An AnnEncryptObject object can have two states: it can be an encryptor or it can be a decryptor (Refer to Encryptor).

Use this method to apply this AnnEncryptObject object, whether it is an encryptor or a decryptor. Applying an encryptor means that the part of the image under the encryptor is scrambled according to the Key value.

Once applied, the portion of the image under the encrypt object becomes scrambled or unscrambled, and the encrypt object changes states (encryptors become decryptors, and decryptors be encryptors). Using different keys before calling this method gives different scrambling patterns. The decryptor state differs from the encryptor state in that a decryptor cannot be moved, and cannot be changed to an encryptor. The scrambling can be removed by calling Apply on the decryptor with the appropriate Key. If successful, the decryptor again changes state to become an encryptor. An encryptor can be moved, and can be changed to a decryptor.

The AnnEncryptObject is useful for encrypting portions of an image. After encrypting, the scrambled image cannot easily be unscrambled without the associated annotation file. The scrambling can be removed by using the associated annotation file, or by using automation mode to manually change the encrypt state from encryptor to a decryptor, position the object correctly, and setting the Key appropriately.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Raster Pro/Document/Medical Features