|Core in version||4.4|
|Core since version||1.0|
glGetString: return a string describing the current GL connection
const GLubyte* glGetString(GLenum name); const GLubyte* glGetStringi(GLenum name, GLuint index);
- Specifies a symbolic constant, one of GL_VENDOR, GL_RENDERER, GL_VERSION, or GL_SHADING_LANGUAGE_VERSION. Additionally, glGetStringi accepts the GL_EXTENSIONS token.
- For glGetStringi, specifies the index of the string to return.
glGetString returns a pointer to a static string describing some aspect of the current GL connection. name can be one of the following:
Returns the company responsible for this GL implementation. This name does not change from release to release.
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.
Returns a version or release number.
Returns a version or release number for the shading language.
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.
glGetStringi returns a pointer to a static string indexed by index. name can be one of the following:
- For glGetStringi only, returns the extension string supported by the implementation at index. The index index is on the range [0 to glGetIntegerv(GL_NUM_EXTENSIONS) - 1].
- Returns one of the versions of GLSL supported by this implementation. index is on the range [0 to glGetIntegerv(GL_NUM_SHADING_LANGUAGE_VERSIONS) - 1].
The GL_VERSION and GL_SHADING_LANGUAGE_VERSION strings begin with a version number. The version number uses one of these forms:
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.
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.
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.
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