glGetString - return a string describing the current GL connection

constGLubyte*glGetString(GLenumname);constGLubyte*glGetStringi(GLenumname,GLuintindex);

       Copyright © 1991-2006 Silicon Graphics, Inc.
       Copyright © 2010-2014 Khronos Group

[FIXME: source]                                    11/18/2024                                    GLGETSTRING(3G)

glGetString returns a pointer to a static string describing some aspect of the current GL connection.
       name can be one of the following:

       GL_VENDOR
           Returns the company responsible for this GL implementation. This name does not change from release to
           release.

       GL_RENDERER
           Returns the name of the renderer. This name is typically specific to a particular configuration of a
           hardware platform. It does not change from release to release.

       GL_VERSION
           Returns a version or release number.

       GL_SHADING_LANGUAGE_VERSION
           Returns a version or release number for the shading language.

       glGetStringi returns a pointer to a static string indexed by index.  name can be one of the following:

       GL_EXTENSIONS
           For glGetStringi only, returns the extension string supported by the implementation at index.

       Strings GL_VENDOR and GL_RENDERER together uniquely specify a platform. They do not change from release
       to release and should be used by platform-recognition algorithms.

       The GL_VERSION and GL_SHADING_LANGUAGE_VERSION strings begin with a version number. The version number
       uses one of these forms:

       major_number.minor_numbermajor_number.minor_number.release_number

       Vendor-specific information may follow the version number. Its format depends on the implementation, but
       a space always separates the version number and the vendor-specific information.

       All strings are null-terminated.

GL_INVALID_ENUM is generated if name is not an accepted value.

       GL_INVALID_VALUE is generated by glGetStringi if index is outside the valid range for indexed state name.

       glGetString - return a string describing the current GL connection

       If an error is generated, glGetString returns 0.

       The client and server may support different versions.  glGetString always returns a compatible version
       number. The release number always describes the server.

name
           Specifies a symbolic constant, one of GL_VENDOR, GL_RENDERER, GL_VERSION, or
           GL_SHADING_LANGUAGE_VERSION. Additionally, glGetStringi accepts the GL_EXTENSIONS token.

       index
           For glGetStringi, specifies the index of the string to return.

       ┌──────────────┬───────────────────────────────────────────────────────────────────────┐
       │              │                OpenGLVersion                                         │
       ├──────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │ 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         │     │     │     │     │     │     │     │     │     │     │     │     │
       ├──────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glGetString  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       ├──────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glGetStringi │  -  │  -  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └──────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘