Class tmsefilestream

Unit

msestream

Declaration

type tmsefilestream = class(thandlestream)

Description

Hierarchy

• TObject
• TStream
• thandlestream
• tmsefilestream

Overview

Fields

fmemorystream: tmemorystream;

Methods

	procedure setcapacity(const avalue: ptrint); virtual;
	procedure sethandle(value: integer); virtual;
	procedure closehandle(const ahandle: integer); virtual;
	constructor internalcreate(const afilename: filenamety; const aopenmode: fileopenmodety; const accessmode: fileaccessmodesty; const rights: filerightsty; out error: syserrorty); overload;
	function getsize: int64; override;
	function inheritedgetsize: int64;
	function inheritedread(var buffer; count: longint): longint;
	function inheritedwrite(const buffer; count: longint): longint;
	function inheritedseek(const offset: int64; origin: tseekorigin): int64;
	function getmemory: pointer; override;
	constructor create(const afilename: filenamety; const aopenmode: fileopenmodety = fm_read; const accessmode: fileaccessmodesty = []; const rights: filerightsty = defaultfilerights); overload;
	constructor createtransaction(const afilename: filenamety; rights: filerightsty = defaultfilerights); overload;
	constructor createtempfile(const prefix: filenamety; out afilename: filenamety);
	constructor create(ahandle: integer); overload; virtual;
	constructor create; overload;
	constructor create(const aopenmode: fileopenmodety); overload;
	constructor createstringcopy(const adata: string);
	destructor destroy; override;
	class function trycreate(out ainstance: tmsefilestream; const afilename: filenamety; const aopenmode: fileopenmodety = fm_read; const accessmode: fileaccessmodesty = []; const rights: filerightsty = defaultfilerights): syserrorty;
	function releasehandle(): filehandlety override;
	function read(var buffer; count: longint): longint; override;
	function write(const buffer; count: longint): longint; override;
	function seek(const offset: int64; origin: tseekorigin): int64; override;
	function readdatastring: string; override;
	procedure writedatastring(const value: rawbytestring); override;
	function isopen: boolean;
	function close: boolean;
	procedure cancel;
	procedure flushbuffer; virtual;
	procedure flush; virtual;
	procedure setsize(const newsize: int64); override;
	procedure clear; virtual;

Properties

	property filename: filenamety read ffilename;
	property openmode: fileopenmodety read fopenmode;
	property transactionname: filenamety read ftransactionname;
	property ismemorystream: boolean read fismemorystream;
	property capacity: ptrint read getcapacity write setcapacity;
	property filerights: filerightsty read getfilerights write setfilerights;
	property cryptohandler: tcustomcryptohandler read fcryptohandler write setcryptohandler;

Description

Fields

	fmemorystream: tmemorystream;

Methods

	procedure setcapacity(const avalue: ptrint); virtual;

	procedure sethandle(value: integer); virtual;

	procedure closehandle(const ahandle: integer); virtual;

	constructor internalcreate(const afilename: filenamety; const aopenmode: fileopenmodety; const accessmode: fileaccessmodesty; const rights: filerightsty; out error: syserrorty); overload;

	function getsize: int64; override;

	function inheritedgetsize: int64;

	function inheritedread(var buffer; count: longint): longint;

	function inheritedwrite(const buffer; count: longint): longint;

	function inheritedseek(const offset: int64; origin: tseekorigin): int64;

	function getmemory: pointer; override;

	constructor create(const afilename: filenamety; const aopenmode: fileopenmodety = fm_read; const accessmode: fileaccessmodesty = []; const rights: filerightsty = defaultfilerights); overload;

	constructor createtransaction(const afilename: filenamety; rights: filerightsty = defaultfilerights); overload;

	constructor createtempfile(const prefix: filenamety; out afilename: filenamety);

	constructor create(ahandle: integer); overload; virtual;

	constructor create; overload;

	constructor create(const aopenmode: fileopenmodety); overload;

	constructor createstringcopy(const adata: string);

	destructor destroy; override;

	class function trycreate(out ainstance: tmsefilestream; const afilename: filenamety; const aopenmode: fileopenmodety = fm_read; const accessmode: fileaccessmodesty = []; const rights: filerightsty = defaultfilerights): syserrorty;

	function releasehandle(): filehandlety override;

	function read(var buffer; count: longint): longint; override;

	function write(const buffer; count: longint): longint; override;

	function seek(const offset: int64; origin: tseekorigin): int64; override;

	function readdatastring: string; override;

	procedure writedatastring(const value: rawbytestring); override;

	function isopen: boolean;

	function close: boolean;

	procedure cancel;

	procedure flushbuffer; virtual;

	procedure flush; virtual;

	procedure setsize(const newsize: int64); override;

	procedure clear; virtual;

Properties

	property filename: filenamety read ffilename;

	property openmode: fileopenmodety read fopenmode;

	property transactionname: filenamety read ftransactionname;

	property ismemorystream: boolean read fismemorystream;

	property capacity: ptrint read getcapacity write setcapacity;

	property filerights: filerightsty read getfilerights write setfilerights;

	property cryptohandler: tcustomcryptohandler read fcryptohandler write setcryptohandler;

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