TFileReader.Create constructor

Member of TFileReaderpublicIn unit StreamEx

Create a new instance of TFileReader for a disk file.

Declaration

pascal

constructor Create(const AFileName: TFileName; AMode: Word; 
 ARights: Cardinal; ABufferSize: Integer); virtual
constructor Create(const AFileName: TFileName; AMode: Word; 
 ABufferSize: Integer); virtual
constructor Create(const AFileName: TFileName; ABufferSize: Integer)
 ; virtual
constructor Create(const AFileName: TFileName); virtual

Arguments

`AFileName`	Filename of file to open.
`AMode`	Mode in which to open the file.
`ARights`	Not used.
`ABufferSize`	Size of buffer to use when reading.

Description

Create initializes a TFileReader using the provided AFileName. It will allocate a buffer of ABufferSize bytes for faster reading of data. If no buffer size is specified, BUFFER_SIZE will be used. If the ABufferSize argument is less than MIN_BUFFER_SIZE, then MIN_BUFFER_SIZE bytes will be used.

The AMode can be used to specify the mode in which to open the file. This is one of the fmOpenRead and fmShare* constants which can be used in a TFileStream constructor. The file must be opened for reading.

Errors

If AStream is Nil, an EArgumentException exception will be raised.

TFileReader.Create constructor

Declaration

Arguments

Description

Errors

See also