#UNICODE CHAR REF WIKI CODE#

#UNICODE CHAR REF WIKI CODE#

UnicodeString adds the CodePage code page and ElemSize element size fields that describe the string contents. UnicodeString may be represented as the following Delphi structure: RAD Studio frameworks and libraries use the UnicodeString type they do not represents string values as single byte or MBCS strings.įormat of UnicodeString Data Type CodePage Note: This differs from versions prior to 2009, in which string was an alias for AnsiString, and the Char and PChar types were AnsiChar and PAnsiChar, respectively.įor C++, the _TCHAR maps to option controls the floating definition of _TCHAR, which can be either wchar_t or char. The type of string in RAD Studio is the UnicodeString type.įor Delphi, Char and PChar types are now WideChar and PWideChar, respectively.

WideString is still appropriate for use in COM applications. Its format is essentially the same as the Windows BSTR. System.WideString was previously used for Unicode character data. (See Long String Types for more information about the new format.) This makes the format for AnsiString identical for the new UnicodeString type. Two new fields ( CodePage and ElemSize) have been added. Previous format of AnsiString Data Type Reference Countįor RAD Studio, the format of AnsiString has changed. This table shows the location of the fields in AnsiString's previous format: Previously, string was an alias for AnsiString. A short string could contain UTF-8 data for a particular application, but this is not generally true.

They do not contain code page information. Note that short strings are limited to 255 characters and contain only a character count and single-byte character data. Short strings also function the same as before. The pre-existing data types AnsiString and System.WideString function the same way as before. 13 Steps to Unicode-enable your applications.7 Code Constructs that Depend on Character Size.6 Code Constructs Independent of Character Size.

Unicode char ref wiki