MQL4参考 标准常量,列举和架构 输入/输出常量 内部文件位置

Positioning Inside a File

Most of file functions are associated with data read/write operations. At the same time, using the FileSeek() you can specify the position of a file pointer to a position inside the file, from which the next read or write operation will be performed. The ENUM_FILE_POSITION enumeration contains valid pointer positions, relative to which you can specify the shift in bytes for the next operation.

ENUM_FILE_POSITION

Identifier

Description

SEEK_SET

File beginning

SEEK_CUR

Current position of a file pointer

SEEK_END

File end

See also

FileIsEnding, FileIsLineEnding