NAME

       glGetProgramInfoLog - Returns the information log for a program object

C SPECIFICATION

       void glGetProgramInfoLog(GLuint program, GLsizei maxLength, GLsizei *length,
                                GLchar *infoLog);

PARAMETERS

       program
           Specifies the program object whose information log is to be queried.

       maxLength
           Specifies the size of the character buffer for storing the returned information log.

       length
           Returns the length of the string returned in infoLog (excluding the null terminator).

       infoLog
           Specifies an array of characters that is used to return the information log.

DESCRIPTION

       glGetProgramInfoLog returns the information log for the specified program object. The
       information log for a program object is modified when the program object is linked or
       validated. The string that is returned will be null terminated.

       glGetProgramInfoLog returns in infoLog as much of the information log as it can, up to a
       maximum of maxLength characters. The number of characters actually returned, excluding the
       null termination character, is specified by length. If the length of the returned string
       is not required, a value of NULL can be passed in the length argument. The size of the
       buffer required to store the returned information log can be obtained by calling
       glGetProgram() with the value GL_INFO_LOG_LENGTH.

       The information log for a program object is either an empty string, or a string containing
       information about the last link operation, or a string containing information about the
       last validation operation. It may contain diagnostic messages, warning messages, and other
       information. When a program object is created, its information log will be a string of
       length 0.

NOTES

       The information log for a program object is the OpenGL implementer's primary mechanism for
       conveying information about linking and validating. Therefore, the information log can be
       helpful to application developers during the development process, even when these
       operations are successful. Application developers should not expect different OpenGL
       implementations to produce identical information logs.

ERRORS

       GL_INVALID_VALUE is generated if program is not a value generated by OpenGL.

       GL_INVALID_OPERATION is generated if program is not a program object.

       GL_INVALID_VALUE is generated if maxLength is less than 0.

ASSOCIATED GETS

       glGetProgram() with argument GL_INFO_LOG_LENGTH

       glIsProgram()

VERSION SUPPORT

       ┌────────────────────┬───────────────────────────────────────────────────────────────────────┐
       │                    │                OpenGL Version                                         │
       ├────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │Function            │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
       │/                   │     │     │     │     │     │     │     │     │     │     │     │     │
       │Feature             │     │     │     │     │     │     │     │     │     │     │     │     │
       │Name                │     │     │     │     │     │     │     │     │     │     │     │     │
       ├────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │glGetProgramInfoLog │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘

SEE ALSO

       glCompileShader(), glGetShaderInfoLog(), glLinkProgram(), glValidateProgram()

COPYRIGHT

       Copyright © 2003-2005 3Dlabs Inc. Ltd. Copyright © 2010-2014 Khronos Group. This material
       may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

COPYRIGHT

       Copyright © 2003-2005 3Dlabs Inc. Ltd.
       Copyright © 2010-2014 Khronos Group

[FIXME: source]                             01/03/2018                    GLGETPROGRAMINFOLOG(3G)