WGL_AMD_gpu_association
http://www.opengl.org/registry/specs/AMD/wgl_gpu_association.txt
WGL_AMD_gpu_association
	WGL_GPU_VENDOR_AMD 0x1F00
	WGL_GPU_RENDERER_STRING_AMD 0x1F01
	WGL_GPU_OPENGL_VERSION_STRING_AMD 0x1F02
	WGL_GPU_FASTEST_TARGET_GPUS_AMD 0x21A2
	WGL_GPU_RAM_AMD 0x21A3
	WGL_GPU_CLOCK_AMD 0x21A4
	WGL_GPU_NUM_PIPES_AMD 0x21A5
	WGL_GPU_NUM_SIMD_AMD 0x21A6
	WGL_GPU_NUM_RB_AMD 0x21A7
	WGL_GPU_NUM_SPI_AMD 0x21A8
	VOID wglBlitContextFramebufferAMD (HGLRC dstCtx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter)
	HGLRC wglCreateAssociatedContextAMD (UINT id)
	HGLRC wglCreateAssociatedContextAttribsAMD (UINT id, HGLRC hShareContext, const int* attribList)
	BOOL wglDeleteAssociatedContextAMD (HGLRC hglrc)
	UINT wglGetContextGPUIDAMD (HGLRC hglrc)
	HGLRC wglGetCurrentAssociatedContextAMD (void)
	UINT wglGetGPUIDsAMD (UINT maxCount, UINT* ids)
	INT wglGetGPUInfoAMD (UINT id, INT property, GLenum dataType, UINT size, void* data)
	BOOL wglMakeAssociatedContextCurrentAMD (HGLRC hglrc)