TMBCSEncoding
[Properties (by Name)][Methods (by Name)][Events (by Name)]
Multi-Byte character set encoding
Declaration
Source position: sysencodingh.inc line 112
Type
TMBCSEncoding = class (TEncoding)
strict private
FCodePage : Integer;
FMBToWCharFlags : Integer;
FWCharToMBFlags : Integer;
strict protected
function GetByteCount(Chars: PUnicodeChar; CharCount: Integer) : Integer
; Override; Overload;
function GetBytes(Chars: PUnicodeChar; CharCount: Integer;
Bytes: PByte; ByteCount: Integer) : Integer; Override
; Overload;
function GetCharCount(Bytes: PByte; ByteCount: Integer) : Integer
; Override; Overload;
function GetChars(Bytes: PByte; ByteCount: Integer;
Chars: PUnicodeChar; CharCount: Integer) : Integer
; Override; Overload;
function GetAnsiBytes(Chars: PChar; CharCount: Integer) : TBytes
; Override;
function GetAnsiString(Bytes: PByte; ByteCount: Integer) : string
; Override;
function GetCodePage : Cardinal; Override;
function GetEncodingName : UnicodeString; Override;
public
constructor Create; Virtual; Overload;
constructor Create(ACodePage: Integer); Virtual; Overload;
constructor Create(ACodePage: Integer; MBToWCharFlags: Integer;
WCharToMBFlags: Integer); Virtual; Overload;
function Clone : TEncoding; Override;
function GetMaxByteCount(CharCount: Integer) : Integer; Override;
function GetMaxCharCount(ByteCount: Integer) : Integer; Override;
function GetPreamble : TBytes; Override;
end
;
Description
TMBCSEncoding is the encoding class used for most of the encodings, except the actual Unicode encodings. The codepage is specified during creation, and is by default the system codepage.
The name is somewhat misleading, since the MBCS is also used for single-byte encodings.
Members
| Member | Type | Visibility | Description |
|---|---|---|---|
| Clone | Method | public | Clone a TMBCSEncoding instance |
| Create | Method | public | Create a new instance of a multi-byte character set encoding |
| FCodePage | Field | strict private | |
| FMBToWCharFlags | Field | strict private | |
| FWCharToMBFlags | Field | strict private | |
| GetAnsiBytes | Method | strict protected | |
| GetAnsiString | Method | strict protected | |
| GetByteCount | Method | strict protected | |
| GetBytes | Method | strict protected | |
| GetCharCount | Method | strict protected | |
| GetChars | Method | strict protected | |
| GetCodePage | Method | strict protected | |
| GetEncodingName | Method | strict protected | |
| GetMaxByteCount | Method | public | Return max number of bytes needed to represent a string |
| GetMaxCharCount | Method | public | Return max number of characters that can be represented by an array of bytes |
| GetPreamble | Method | public | Return BOM marker bytes |
Inheritance
| Class | Description |
|---|---|
| TMBCSEncoding | Multi-Byte character set encoding |
See also
| Name | Description |
|---|---|
| Integer | A signed 16-bits integer |
| Integer | A signed 16-bits integer |
| Integer | A signed 16-bits integer |
| TBigendianUnicodeEncoding | Big-endian UTF-16 Unicode encoding |
| TUnicodeEncoding | UTF-16 Unicode encoding |
| TUTF7Encoding | UTF-7 Unicode encoding |
| TUTF8Encoding | UTF-8 Unicode encoding |