| WGL_EXT_extensions_string |
EXT_extensions_string
WGL_EXT_extensions_string
$Date: 1999/04/03 08:41:12 $ $Revision: 1.3 $
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This extension provides a way for applications to determine which
WGL extensions are supported by a device. This is the foundation
upon which other WGL extensions are built.
Note that extensions that were previously advertised via glGetString
(e.g., the swap interval extension) should continue to be advertised
there so existing applications don't break. They should also be
advertised via wglGetExtensionsStringEXT so new applications can make
one call to find out which WGL extensions are supported.
   New Procedures and Functions |
const char *wglGetExtensionsStringEXT(void);
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| Additions to Chapter 2 of the 1.2 Specification (OpenGL Operation) |
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| Additions to Chapter 3 of the 1.2 Specification (Rasterization) |
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| Additions to Chapter 4 of the 1.2 Specification (Per-Fragment Operations and the Frame buffer) |
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| Additions to Chapter 5 of the 1.2 Specification (Special Functions) |
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| Additions to Chapter 6 of the 1.2 Specification (State and State Requests) |
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| Additions to the WGL Specification |
Advertising WGL Extensions
Applications should call wglGetProcAddress to see whether or not
wglGetExtensionsStringEXT is supported. If it is supported then it
can be used to determine which WGL extensions are supported by the device.
const char *wglGetExtensionsString(void);
If the function succeeds, it returns a list of supported
extensions to WGL. Although the contents of the string is
implementation specific, the string will be NULL terminated and
will contain a space-separated list of extension names. (The
extension names themselves do not contain spaces.) If there are no
extensions then the empty string is returned.
If the function fails, the return value is NULL. To get extended
error information, call GetLastError.
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| New Implementation Dependent State |
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 |  | Last update: November 14, 2006.
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