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 Class TFile   Low level files management as Objects
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  Class TFile is the base class for binary files manipulation
  From this class we inherit all file manager sub classes.

 DATA
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 cName        File name.
 hFile        Handle of the file
 nLen         Length of the file
 nBufferLen   Buffer length.
 nMode        Opening Mode.

 METHODS
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 New          Constructor from source code
 Create       Creates the file.
 End          Ends control and make it disappear.
 AppByte      Adds a Byte to the end of the file.
 AppStr       Adds a String to the end of the file.
 AppWord      Adds a word to the end of the file.
 cGetStr      Retrieves a String from the file.
 Close        Closes the file.
 Count        Number of times that a string appears in the file. CRLF as default.
 DelBytes     Deletes a specified number of bytes from the current position.
 GoBottom     Go to the bottom of the file.
 GoTo         Go to a specified file offset.
 GoTop        Go to the top of the file.
 InsBytes     Inserts a specified numbers of bytes always from current position.
 lBoF         True if at the begining of the file.
 lEoF         True if at the end of the file.
 nGetByte     Get a byte from the actual file offset.
 nGetWord     Get a word (two bytes) from the actual file offset.
 nRecNo       Actual offset position inside the file.
 Open         Open the file.
 PutByte      Write a byte at the current file offset.
 PutStr       Write a String at the current file offset.
 PutWord      Write a Word (two bytes) at the current file offset.
 Seek         Search for determinate String. Starts from the current position.
 Skip         Skips a determinate number of bytes.