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# Enum MappedFile.OpenMode

open file mode

###### Namespace: pdftron.Filters

###### Assembly: PDFTronDotNet.dll

##### Syntax

    public enum MappedFile.OpenMode

### Fields

Name | Description
--- | ---
e_append_mode | Opens for reading and appending. Creates the file first if it doesn't exist.
e_read_mode | Opens file for reading. An exception is thrown if the file doesn't exist.
e_write_mode | Opens an empty file for writing. If the given file exists, its contents are destroyed.