Unit 'Classes'	Package
[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index]	[#rtl]

TFileStream.Create

Creates a file stream.

Declaration

Source position: classesh.inc line 1484

public constructor TFileStream.Create(

const AFileName: string;

Mode: Word

); constructor TFileStream.Create(

const AFileName: string;

Mode: Word;

Rights: Cardinal

);

Create creates a new instance of a TFileStream class. It opens the file AFileName with mode Mode, which can have one of the following values:

fmCreate	TFileStream.Create creates a new file if needed.
fmOpenRead	TFileStream.Create opens a file with read-only access.
fmOpenWrite	TFileStream.Create opens a file with write-only access.
fmOpenReadWrite	TFileStream.Create opens a file with read-write access.

These constants (except fmCreate) can be OR-ed with the following to specify how sharing and file locking is supposed to be handled:

fmShareCompat	Open file in DOS share-compatibility mode.
fmShareExclusive	Lock file for exclusive use.
fmShareDenyWrite	Lock file so other processes can only read.
fmShareDenyRead	Lock file so other processes cannot read.
fmShareDenyNone	Do not lock file.

Note that sharing is advisory on Unix-like platforms.

After the file has been opened in the requested mode and a handle has been obtained from the operating system, the inherited constructor is called.

If the file could not be opened in the requested mode, an EFOpenError exception is raised.

TStream		Base class for streams.
TFileStream.FileName		The filename of the stream.
THandleStream.Create		Create a handlestream from an OS Handle.