System.Classes.TStream.WriteData
Delphi
function WriteData(const Buffer: TBytes; Count: Longint): Longint; overload;
function WriteData(const Buffer: Pointer; Count: Longint): Longint; overload;
function WriteData(const Buffer: Boolean): Longint; overload;
function WriteData(const Buffer: Boolean; Count: Longint): Longint; overload;
function WriteData(const Buffer: AnsiChar): Longint; overload;
function WriteData(const Buffer: AnsiChar; Count: Longint): Longint; overload;
function WriteData(const Buffer: Char): Longint; overload;
function WriteData(const Buffer: Char; Count: Longint): Longint; overload;
function WriteData(const Buffer: Int8): Longint; overload;
function WriteData(const Buffer: Int8; Count: Longint): Longint; overload;
function WriteData(const Buffer: UInt8): Longint; overload;
function WriteData(const Buffer: UInt8; Count: Longint): Longint; overload;
function WriteData(const Buffer: Int16): Longint; overload;
function WriteData(const Buffer: Int16; Count: Longint): Longint; overload;
function WriteData(const Buffer: UInt16): Longint; overload;
function WriteData(const Buffer: UInt16; Count: Longint): Longint; overload;
function WriteData(const Buffer: Int32): Longint; overload;
function WriteData(const Buffer: Int32; Count: Longint): Longint; overload;
function WriteData(const Buffer: UInt32): Longint; overload;
function WriteData(const Buffer: UInt32; Count: Longint): Longint; overload;
function WriteData(const Buffer: Int64): Longint; overload;
function WriteData(const Buffer: Int64; Count: Longint): Longint; overload;
function WriteData(const Buffer: UInt64): Longint; overload;
function WriteData(const Buffer: UInt64; Count: Longint): Longint; overload;
function WriteData(const Buffer: Single): Longint; overload;
function WriteData(const Buffer: Single; Count: Longint): Longint; overload;
function WriteData(const Buffer: Double): Longint; overload;
function WriteData(const Buffer: Double; Count: Longint): Longint; overload;
function WriteData(const Buffer: Extended): Longint; overload;
function WriteData(const Buffer: Extended; Count: Longint): Longint; overload;
function WriteData(const Buffer: TExtended80Rec): Longint; overload;
function WriteData(const Buffer: TExtended80Rec; Count: Longint): Longint; overload;
C++
int __fastcall WriteData(const System::DynamicArray<System::Byte> Buffer, int Count)/* overload */;
int __fastcall WriteData(const void * Buffer, int Count)/* overload */;
int __fastcall WriteData(const bool Buffer)/* overload */;
int __fastcall WriteData(const bool Buffer, int Count)/* overload */;
int __fastcall WriteData(const char Buffer)/* overload */;
int __fastcall WriteData(const char Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::WideChar Buffer)/* overload */;
int __fastcall WriteData(const System::WideChar Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::Int8 Buffer)/* overload */;
int __fastcall WriteData(const System::Int8 Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::Byte Buffer)/* overload */;
int __fastcall WriteData(const System::Byte Buffer, int Count)/* overload */;
int __fastcall WriteData(const short Buffer)/* overload */;
int __fastcall WriteData(const short Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::Word Buffer)/* overload */;
int __fastcall WriteData(const System::Word Buffer, int Count)/* overload */;
int __fastcall WriteData(const int Buffer)/* overload */;
int __fastcall WriteData(const int Buffer, int Count)/* overload */;
int __fastcall WriteData(const unsigned Buffer)/* overload */;
int __fastcall WriteData(const unsigned Buffer, int Count)/* overload */;
int __fastcall WriteData(const __int64 Buffer)/* overload */;
int __fastcall WriteData(const __int64 Buffer, int Count)/* overload */;
int __fastcall WriteData(const unsigned __int64 Buffer)/* overload */;
int __fastcall WriteData(const unsigned __int64 Buffer, int Count)/* overload */;
int __fastcall WriteData(const float Buffer)/* overload */;
int __fastcall WriteData(const float Buffer, int Count)/* overload */;
int __fastcall WriteData(const double Buffer)/* overload */;
int __fastcall WriteData(const double Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::Extended Buffer)/* overload */;
int __fastcall WriteData(const System::Extended Buffer, int Count)/* overload */;
int __fastcall WriteData(const System::TExtended80Rec &Buffer)/* overload */;
int __fastcall WriteData(const System::TExtended80Rec &Buffer, int Count)/* overload */;
Propriétés
| Type | Visibilité | Source | Unité | Parent |
|---|---|---|---|---|
| function | public | System.Classes.pas System.Classes.hpp |
System.Classes | TStream |
Description
Méthodes responsables d'écrire jusqu'à Count octets dans le flux à partir de Buffer.
WriteData est utilisée quand le nombre d'octets à écrire dans le flux n'est pas nécessairement fixé.
WriteData fonctionne en utilisant les algorithmes suivants :
- Si WriteData ne contient pas de paramètre
Count, WriteData tente d'écrire le nombre d'octetsSizeOf(Buffer). WriteData avance la position en cours dans le flux du nombre d'octets transférés. WriteData renvoie le nombre d'octets écrits. - Si WriteData contient le paramètre
Count:- Si
Count> SizeOf(Buffer), WriteData tente d'écrire le nombre d'octetsSizeOf(Buffer). WriteData avance la position en cours dans le flux du nombre d'octetsCount. - Si
Count<= SizeOf(Buffer), WriteData tente d'écrire le nombre d'octetsCountdans le flux puis avance la position en cours dans le flux du nombre d'octets transférés. WriteData renvoie le nombre d'octets écrits, ce dernier peut être inférieur àCount.
- Si
La méthode WriteData appelle Write pour effectuer leur écriture réelle.