#define WGL_TEXTURE_FLOAT_RGBA_NV                   0x20B8
#endif

#ifndef WGL_NV_render_texture_rectangle
#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV        0x20A0
#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGBA_NV       0x20A1

#define WGL_TEXTURE_RECTANGLE_NV                    0x20A2
#endif


#ifndef WGL_NV_render_depth_texture
#define WGL_TEXTURE_DEPTH_COMPONENT_NV          0x20A6
#define WGL_DEPTH_TEXTURE_FORMAT_NV             0x20A5
#define WGL_BIND_TO_TEXTURE_DEPTH_NV            0x20A3
#define WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV  0x20A4
#define WGL_DEPTH_COMPONENT_NV                  0x20A7
#endif

#ifndef WGL_3DFX_multisample
#define WGL_SAMPLE_BUFFERS_3DFX        0x2060
#define WGL_SAMPLES_3DFX               0x2061
#endif

#ifndef WGL_EXT_multisample
#define WGL_SAMPLE_BUFFERS_EXT         0x2041
#define WGL_SAMPLES_EXT                0x2042
#endif

#ifndef WGL_I3D_unknown_genlock_extension_name
#define WGL_GENLOCK_SOURCE_MULTIVIEW_I3D 0x2044
#define WGL_GENLOCK_SOURCE_EXTENAL_SYNC_I3D 0x2045
#define WGL_GENLOCK_SOURCE_EXTENAL_FIELD_I3D 0x2046
#define WGL_GENLOCK_SOURCE_EXTENAL_TTL_I3D 0x2047
#define WGL_GENLOCK_SOURCE_DIGITAL_SYNC_I3D 0x2048
#define WGL_GENLOCK_SOURCE_DIGITAL_FIELD_I3D 0x2049
#define WGL_GENLOCK_SOURCE_EDGE_FALLING_I3D 0x204A
#define WGL_GENLOCK_SOURCE_EDGE_RISING_I3D 0x204B
#define WGL_GENLOCK_SOURCE_EDGE_BOTH_I3D 0x204C
#endif

#ifndef WGL_I3D_unknown_gamma_extension_name
#define WGL_GAMMA_TABLE_SIZE_I3D       0x204E
#define WGL_GAMMA_EXCLUDE_DESKTOP_I3D  0x204F
#endif

#ifndef WGL_I3D_unknown_digital_video_cursor_extension_name
#define WGL_DIGITAL_VIDEO_CURSOR_ALPHA_FRAMEBUFFER_I3D 0x2050
#define WGL_DIGITAL_VIDEO_CURSOR_ALPHA_VALUE_I3D 0x2051
#define WGL_DIGITAL_VIDEO_CURSOR_INCLUDED_I3D 0x2052
#define WGL_DIGITAL_VIDEO_GAMMA_CORRECTED_I3D 0x2053
#endif


/*************************************************************/

#ifndef WGL_ARB_pbuffer
DECLARE_HANDLE(HPBUFFERARB);
#endif
#ifndef WGL_EXT_pbuffer
DECLARE_HANDLE(HPBUFFEREXT);
#endif

#ifndef WGL_ARB_buffer_region
#define WGL_ARB_buffer_region 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern HANDLE WINAPI wglCreateBufferRegionARB (HDC, int, UINT);
extern VOID WINAPI wglDeleteBufferRegionARB (HANDLE);
extern BOOL WINAPI wglSaveBufferRegionARB (HANDLE, int, int, int, int);
extern BOOL WINAPI wglRestoreBufferRegionARB (HANDLE, int, int, int, int, int, int);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef HANDLE (WINAPI * PFNWGLCREATEBUFFERREGIONARBPROC) (HDC hDC, int iLayerPlane, UINT uType);
typedef VOID (WINAPI * PFNWGLDELETEBUFFERREGIONARBPROC) (HANDLE hRegion);
typedef BOOL (WINAPI * PFNWGLSAVEBUFFERREGIONARBPROC) (HANDLE hRegion, int x, int y, int width, int height);
typedef BOOL (WINAPI * PFNWGLRESTOREBUFFERREGIONARBPROC) (HANDLE hRegion, int x, int y, int width, int height, int xSrc, int ySrc);
#endif

#ifndef WGL_ARB_extensions_string
#define WGL_ARB_extensions_string 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern const char * WINAPI wglGetExtensionsStringARB (HDC);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
#endif

#ifndef WGL_ARB_pixel_format
#define WGL_ARB_pixel_format 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern BOOL WINAPI wglGetPixelFormatAttribivARB (HDC, int, int, UINT, const int *, int *);
extern BOOL WINAPI wglGetPixelFormatAttribfvARB (HDC, int, int, UINT, const int *, FLOAT *);
extern BOOL WINAPI wglChoosePixelFormatARB (HDC, const int *, const FLOAT *, UINT, int *, UINT *);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
#endif

#ifndef WGL_ARB_make_current_read
#define WGL_ARB_make_current_read 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern BOOL WINAPI wglMakeContextCurrentARB (HDC, HDC, HGLRC);
extern HDC WINAPI wglGetCurrentReadDCARB (void);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef BOOL (WINAPI * PFNWGLMAKECONTEXTCURRENTARBPROC) (HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
typedef HDC (WINAPI * PFNWGLGETCURRENTREADDCARBPROC) (void);
#endif

#ifndef WGL_ARB_pbuffer
#define WGL_ARB_pbuffer 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern HPBUFFERARB WINAPI wglCreatePbufferARB (HDC, int, int, int, const int *);
extern HDC WINAPI wglGetPbufferDCARB (HPBUFFERARB);
extern int WINAPI wglReleasePbufferDCARB (HPBUFFERARB, HDC);
extern BOOL WINAPI wglDestroyPbufferARB (HPBUFFERARB);
extern BOOL WINAPI wglQueryPbufferARB (HPBUFFERARB, int, int *);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef HPBUFFERARB (WINAPI * PFNWGLCREATEPBUFFERARBPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
typedef HDC (WINAPI * PFNWGLGETPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer);
typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer, HDC hDC);
typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERARBPROC) (HPBUFFERARB hPbuffer);
typedef BOOL (WINAPI * PFNWGLQUERYPBUFFERARBPROC) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
#endif

#ifndef WGL_EXT_display_color_table
#define WGL_EXT_display_color_table 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern GLboolean WINAPI wglCreateDisplayColorTableEXT (GLushort);
extern GLboolean WINAPI wglLoadDisplayColorTableEXT (const GLushort *, GLuint);
extern GLboolean WINAPI wglBindDisplayColorTableEXT (GLushort);
extern VOID WINAPI wglDestroyDisplayColorTableEXT (GLushort);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef GLboolean (WINAPI * PFNWGLCREATEDISPLAYCOLORTABLEEXTPROC) (GLushort id);
typedef GLboolean (WINAPI * PFNWGLLOADDISPLAYCOLORTABLEEXTPROC) (const GLushort *table, GLuint length);
typedef GLboolean (WINAPI * PFNWGLBINDDISPLAYCOLORTABLEEXTPROC) (GLushort id);
typedef VOID (WINAPI * PFNWGLDESTROYDISPLAYCOLORTABLEEXTPROC) (GLushort id);
#endif

#ifndef WGL_EXT_extensions_string
#define WGL_EXT_extensions_string 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern const char * WINAPI wglGetExtensionsStringEXT (void);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGEXTPROC) (void);
#endif

#ifndef WGL_ATI_pixel_format_float
#define WGL_ATI_pixel_format_float
#endif

#ifndef WGL_EXT_make_current_read
#define WGL_EXT_make_current_read 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern BOOL WINAPI wglMakeContextCurrentEXT (HDC, HDC, HGLRC);
extern HDC WINAPI wglGetCurrentReadDCEXT (void);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef BOOL (WINAPI * PFNWGLMAKECONTEXTCURRENTEXTPROC) (HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
typedef HDC (WINAPI * PFNWGLGETCURRENTREADDCEXTPROC) (void);
#endif

#ifndef WGL_EXT_pbuffer
#define WGL_EXT_pbuffer 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern HPBUFFEREXT WINAPI wglCreatePbufferEXT (HDC, int, int, int, const int *);
extern HDC WINAPI wglGetPbufferDCEXT (HPBUFFEREXT);
extern int WINAPI wglReleasePbufferDCEXT (HPBUFFEREXT, HDC);
extern BOOL WINAPI wglDestroyPbufferEXT (HPBUFFEREXT);
extern BOOL WINAPI wglQueryPbufferEXT (HPBUFFEREXT, int, int *);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef HPBUFFEREXT (WINAPI * PFNWGLCREATEPBUFFEREXTPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
typedef HDC (WINAPI * PFNWGLGETPBUFFERDCEXTPROC) (HPBUFFEREXT hPbuffer);
typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCEXTPROC) (HPBUFFEREXT hPbuffer, HDC hDC);
typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFEREXTPROC) (HPBUFFEREXT hPbuffer);
typedef BOOL (WINAPI * PFNWGLQUERYPBUFFEREXTPROC) (HPBUFFEREXT hPbuffer, int iAttribute, int *piValue);
#endif

#ifndef WGL_EXT_pixel_format
#define WGL_EXT_pixel_format 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern BOOL WINAPI wglGetPixelFormatAttribivEXT (HDC, int, int, UINT, int *, int *);
extern BOOL WINAPI wglGetPixelFormatAttribfvEXT (HDC, int, int, UINT, int *, FLOAT *);
extern BOOL WINAPI wglChoosePixelFormatEXT (HDC, const int *, const FLOAT *, UINT, int *, UINT *);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVEXTPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, int *piValues);
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVEXTPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, FLOAT *pfValues);
typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATEXTPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
#endif

#ifndef WGL_EXT_swap_control
#define WGL_EXT_swap_control 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern BOOL WINAPI wglSwapIntervalEXT (int);
extern int WINAPI wglGetSwapIntervalEXT (void);
#endif /* WGL_WGLEXT_PROTOTYPES */
typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC) (int interval);
typedef int (WINAPI * PFNWGLGETSWAPINTERVALEXTPROC) (void);
#endif

#ifndef WGL_EXT_depth_float
#define WGL_EXT_depth_float 1
#endif

#ifndef WGL_3DFX_multisample
#define WGL_3DFX_multisample 1
#endif

#ifndef WGL_EXT_multisample
#define WGL_EXT_multisample 1
#endif

/* WGL memory allocation functions for NV_vertex_array_range extension */
#ifndef VAR_MEMORY_FUNCS
#define VAR_MEMORY_FUNCS 1
#ifdef WGL_WGLEXT_PROTOTYPES
extern void * wglAllocateMemoryNV(int size, float readfreq, float writefreq, float priority);
extern void wglFreeMemoryNV(void * pointer); 
#endif
typedef void * (APIENTRY * PFNWGLALLOCATEMEMORYNVPROC) (int size, float readfreq, float writefreq, float priority);
typedef void (APIENTRY * PFNWGLFREEMEMORYNVPROC) (void *pointer);
#endif

#ifndef WGL_ARB_render_texture
#define WGL_ARB_render_texture 1
typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
typedef BOOL (WINAPI * PFNWGLSETPBUFFERATTRIBARBPROC) (HPBUFFERARB hPbuffer, const int * piAttribList);
#endif

#ifndef WGL_NV_float_buffer
#define WGL_NV_float_buffer 1
#endif

#ifndef WGL_NV_render_texture_rectangle
#define WGL_NV_render_texture_rectangle 1
#endif

#ifndef WGL_NV_render_depth_texture
#define WGL_NV_render_depth_texture 1
#endif

#ifdef __cplusplus
}
#endif

#endif