Codepage usage - MQL4

MQL4 Codepage Usage

Overview

MQL4 uses the current Windows ANSI codepage (CP_ACP) by default for converting strings to char arrays and vice-versa.

Custom encodings can be specified as an additional parameter in CharArrayToString(), StringToCharArray(), and FileOpen() functions.

Codepage Constants

| Constant | Value | Description | |-----------------|-------|-----------------------------------------------| | CP_ACP | 0 | Current Windows ANSI code page. | | CP_OEMCP | 1 | Current system OEM code page. | | CP_MACCP | 2 | Current system Macintosh code page (legacy). | | CP_THREAD_ACP | 3 | Windows ANSI code page for the current thread. | | CP_SYMBOL | 42 | Symbol code page. | | CP_UTF7 | 65000 | UTF-7 code page. | | CP_UTF8 | 65001 | UTF-8 code page. |

Non-listed codepages can be specified by their corresponding numerical code.

Related Functions

CharArrayToString()

StringToCharArray()

FileOpen()

Related Concepts

[File Opening Flags](/constants/io_constants/fileflags)

[File Properties](/constants/io_constants/enum_file_property_integer)

[In-File Position](/constants/io_constants/enum_file_position)

[MessageBox Constants](/constants/io_constants/messbconstants)

[Client Terminal Properties](/constants/environment_state/terminalstatus#enum_terminal_info_integer)