Delegate SourceCustom.SeekDelegate
A seek delegate.
Namespace: NetVips
Assembly: NetVips.dll
Syntax
public delegate long SeekDelegate(long offset, SeekOrigin origin);Parameters
| Type | Name | Description |
|---|---|---|
| System.Int64 | offset | A byte offset relative to the |
| System.IO.SeekOrigin | origin | A value of type System.IO.SeekOrigin indicating the reference point used to obtain the new position. |
Returns
| Type | Description |
|---|---|
| System.Int64 | The new position within the current source. |
Remarks
The interface is exactly as System.IO.Stream.Seek(System.Int64,System.IO.SeekOrigin). The handler is given parameters for offset and whence with the same meanings. It also returns the new position within the current source.
Seek handlers are optional. If you do not set one, your source will be treated as unseekable and libvips will do extra caching.