The currently shipping OpenGL32.DLL from Microsoft only has entry points
for OpenGL 1.1. If an application wants to use OpenGL 1.2 / OpenGL 1.3 
entry points, it has to use wglGetProcAddress() in order to obtain 
the OpenGL 1.2/1.3 entry points from the driver. The files in this 
distribution are meant as an aid to the application to pretend that 
there is full support for OpenGL 1.2/1.3 if the underlying 
implementation supports OpenGL 1.2/1.3.

Additionally, this distribution provides full support for all the 
extension entry points in glext.h.

In order to use this scheme, the application needs to do the following:

=====================================================================

For applications that do not create rendering contexts on different devices 
(e.g. multi-display with different vendors supporting the two displays):

1. Include "glprocs.h"  in addition to including "gl.h"
2. Compile "glprocs.c" and ensure that glprocs.obj is linked with the
   application code.
3. Call OpenGL1.2, OpenGL1.3 and extension procs after verifying that
   the implementation has support for the underlying feature. Example:

   if (supports12) {
       glDrawRangeElements (.....)
   }

=====================================================================

For aplications that create rendering contexts on different devices, the
application has to do the following additional things:

1. Allocate memory for _GLextensionProcs in the application data
   structures for each device. Example:

   typedef struct {
        appType             appData;

        _GLextensionProcs   extensionProcs;
   } ContextData;

   ContextData cdev1, cdev2;

2. Initialize the extension procs.

   _InitExtensionProcs (&cdev1.extensionProcs);
   _InitExtensionProcs (&cdev2.extensionProcs);

3. Provide a mechanism for accessing the current device. Example:

   ContextData *currentContextData;

   static _inline _GLextensionProcs *_GET_TLS_PROCTABLE(void)
   {
       return (&currentContxtData->extensionProcs);
   }

   Another Example (when the two different devices are being used
   on two different contexts):

   static _inline _GLextensionProcs *_GET_TLS_PROCTABLE(void)
   {
       ContextData *tla = GetThreadSpecificData();
       return (&tla->extensionProcs);
   }

   (NOTE: Aplication has to replace this function in glprocs.h with 
    its own customized function).
        
=====================================================================

This distribution additionally contains the following:

test: Sample application with Makefile of how to use glprocs.{c,h}