System.IOUtils.TFile.Open

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Delphi

class function Open(const Path: string;
const Mode: TFileMode): TFileStream; overload; inline; static;
class function Open(const Path: string;
const Mode: TFileMode; const Access: TFileAccess): TFileStream;
class function Open(const Path: string;
const Mode: TFileMode; const Access: TFileAccess;
const Share: TFileShare): TFileStream; overload; static;

C++

static System::Classes::TFileStream* __fastcall Open(const System::UnicodeString Path, const TFileMode Mode)/* overload */;
static System::Classes::TFileStream* __fastcall Open(const System::UnicodeString Path, const TFileMode Mode, const TFileAccess Access)/* overload */;
static System::Classes::TFileStream* __fastcall Open(const System::UnicodeString Path, const TFileMode Mode, const TFileAccess Access, const TFileShare Share)/* overload */;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.IOUtils.pas System.IOUtils.hpp	System.IOUtils	TFile

Description

Opens a file and returns a stream associated with that file.

Call Open to open a file. Depending on the TFileMode value passed, the file is opened, created, or appended. Any way, a TFileStream instance is returned. The instance can be used to read or write data. The optional Access parameter allows you to specify whether the file should be opened in read, write, or read-write mode. The following table lists the parameters expected by this method.

Name	Meaning
Path	The path to the file that will be opened.
Mode	The mode in which the file will be opened.
Access	The desired file access.

Note: Open raises an exception if the file cannot be opened or the path is invalid. Depending on the Mode and Access parameter combinations, several exception conditions can appear.

See Also

• OpenRead

• OpenText

• OpenWrite