External Interfaces/API Reference

matOpen

Opens a MAT-file

C Syntax

• #include "mat.h"
  MATFile *matOpen(const char *filename, const char *mode);
  

Arguments

filename
   Name of file to open.

mfp
   Pointer to MAT-file information.

mode
   File opening mode. Legal values for mode are:

Table 1-1:

r	Opens file for reading only; determines the current version of the MAT-file by inspecting the files and preserves the current version.
u	Opens file for update, both reading and writing, but does not create the file if the file does not exist (equivalent to the r+ mode of fopen); determines the current version of the MAT-file by inspecting the files and preserves the current version.
w	Opens file for writing only; deletes previous contents, if any.
w4	Creates a MATLAB 4 MAT-file.

Description

This routine allows you to open MAT-files for reading and writing.

matOpen opens the named file and returns a file handle, or NULL if the open fails.

Examples

See matcreat.c and matdgns.c in the eng_mat subdirectory of the examples directory for sample programs that illustrate how to use the MATLAB MAT-file routines in a C program.

matGetVariableInfo

matPutArray (Obsolete)