Class MappedFile
MappedFile is a utility class to read files on a file system. Because MappedFile file is derived from pdftron.Filters.Filter you can directly chain MappedFile objects to other 'pdftron.Filters'.
MappedFile objects support random access to files using the Seek method. Seek
allows the read/write position to be moved to any position within the file. This
is done through a shared memory mapped chunk manager. The byte offset is relative
to the seek reference point, which can be the beginning, the current position,
or the end of the underlying file, as represented by the three properties of the
Filter.ReferencePos class.
MappedFile objects are thread-safe, meaning separate copies of a MappedFile can Seek
to different locations in the file, without conflicting with one another.
Disk files always support random access. At the time of construction, the CanSeek()
property value is set to true or false depending on the underlying file type.
Implements
Inherited Members
Namespace: pdftron.Filters
Assembly: PDFTronDotNet.dll
Syntax
public class MappedFile : Filter, IDisposable
Remarks
.NET or Java applications should explicitly Close() files when they are not needed.
Constructors
MappedFile(string)
Create a new instance of MappedFile class with the specified path.
Declaration
public MappedFile(string filename)
Parameters
Type | Name | Description |
---|---|---|
string | filename | filename |
Exceptions
Type | Condition |
---|---|
PDFNetException | PDFNetException the PDFNet exception |
Methods
Close()
close filter and release relevant resources
Declaration
public void Close()
FileSize()
Gets File size.
Declaration
public int FileSize()
Returns
Type | Description |
---|---|
int | the size of the current file. |
Exceptions
Type | Condition |
---|---|
PDFNetException | PDFNetException the PDFNet exception |
~MappedFile()
Releases all resources used by the MappedFile
Declaration
protected ~MappedFile()