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All platform specific libraries (available from the [[Core OpenGL|CGL]] API for [[Mac OS X]], [[GLX]] for [[X Window System]], and [[WGL (software)|WGL]] for [[Microsoft Windows]]) are also abstracted out to create a platform independent way of selecting [[Framebuffer]] attributes and performing platform specific Framebuffer operations.
Platform-specific extensions are not included in the public API. Each implementation can choose to export some of these APIs via the [http://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/javax/media/opengl/GLBase.html#getPlatformGLExtensions%28%29 GL.getPlatformGLExtensions()] {{Webarchive|url=https://web.archive.org/web/20110217002436/http://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/javax/media/opengl/GLBase.html#getPlatformGLExtensions%28%29 |date=2011-02-17 }} and [http://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/javax/media/opengl/GLBase.html#getExtension%28java.lang.String%29 GL.getExtension(String)] {{Webarchive|url=https://web.archive.org/web/20110217002436/http://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/javax/media/opengl/GLBase.html#getExtension%28java.lang.String%29 |date=2011-02-17 }} method calls which return Objects whose data types are specific to the given implementation.
==Example==
This example shows how to draw a polygon (without initialization or repaint code).<ref>Borrowed from the [http://nehe.gamedev.net/lesson.asp?index=01 Nehe tutorial] {{Webarchive|url=https://web.archive.org/web/20070406193934/http://nehe.gamedev.net/lesson.asp?index=01 |date=2007-04-06 }}, whose code is free to use elsewhere.</ref> Here is the reference [[C (programming language)|C]] implementation:
<syntaxhighlight lang="c">
int DrawGLScene(GLvoid) {
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