WGL_I3D_genlock
http://oss.sgi.com/projects/ogl-sample/registry/I3D/wgl_genlock.txt
	WGL_GENLOCK_SOURCE_MULTIVIEW_I3D 0x2044
	WGL_GENLOCK_SOURCE_EXTERNAL_SYNC_I3D 0x2045
	WGL_GENLOCK_SOURCE_EXTERNAL_FIELD_I3D 0x2046
	WGL_GENLOCK_SOURCE_EXTERNAL_TTL_I3D 0x2047
	WGL_GENLOCK_SOURCE_DIGITAL_SYNC_I3D 0x2048
	WGL_GENLOCK_SOURCE_DIGITAL_FIELD_I3D 0x2049
	WGL_GENLOCK_SOURCE_EDGE_FALLING_I3D 0x204A
	WGL_GENLOCK_SOURCE_EDGE_RISING_I3D 0x204B
	WGL_GENLOCK_SOURCE_EDGE_BOTH_I3D 0x204C
	BOOL wglDisableGenlockI3D (HDC hDC)
	BOOL wglEnableGenlockI3D (HDC hDC)
	BOOL wglGenlockSampleRateI3D (HDC hDC, UINT uRate)
	BOOL wglGenlockSourceDelayI3D (HDC hDC, UINT uDelay)
	BOOL wglGenlockSourceEdgeI3D (HDC hDC, UINT uEdge)
	BOOL wglGenlockSourceI3D (HDC hDC, UINT uSource)
	BOOL wglGetGenlockSampleRateI3D (HDC hDC, UINT* uRate)
	BOOL wglGetGenlockSourceDelayI3D (HDC hDC, UINT* uDelay)
	BOOL wglGetGenlockSourceEdgeI3D (HDC hDC, UINT* uEdge)
	BOOL wglGetGenlockSourceI3D (HDC hDC, UINT* uSource)
	BOOL wglIsEnabledGenlockI3D (HDC hDC, BOOL* pFlag)
	BOOL wglQueryGenlockMaxSourceDelayI3D (HDC hDC, UINT* uMaxLineDelay, UINT *uMaxPixelDelay)