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NAME
glGetString - return a string describing the current GL connection
C SPECIFICATION
const GLubyte *glGetString(GLenum name);
const GLubyte *glGetStringi(GLenum name, GLuint index);
PARAMETERS
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.
DESCRIPTION
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_number major_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.
NOTES
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.
ERRORS
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.
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 │ │ │ │ │ │ │ │ │ │ │ │ │
├──────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
│ glGetString │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │
├──────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
│ glGetStringi │ - │ - │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │
└──────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘
SEE ALSO
COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2014 Khronos Group. This document is
licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.
COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group
[FIXME: source] 01/03/2018 GLGETSTRING(3G)