NVIDIA CorporationQuadro FX 4500/5500 SDI User’s Guide – Version 2.0 47C HAPTER 5API ControlNVRESULT NVAPIENTRY NvGvoCaps(UINT nAdapterNumber IN,UINT nReserved IN,NVGVOCAPS* pAdapterCaps OUT);NvGvoOpen()//---------------------------------------------------------------------// Function: NvGvoOpen// Description: Open graphics adapter for Graphics to Video operations// using the OpenGL application interface. Read operations// are permitted in this mode by multiple clients, but Write// operations are application exclusive.// Parameters: nAdapterNumber - Graphics adapter number// nReserved - Reserved (must be set to zero)// dwClass - Class interface (NVGVOCLASS_* value)// dwAccessRights - Access rights (NVGVO_O_* mask)// phGvoHandle - Pointer to receive handle// Returns: NV_OK - Success// NV_ACCESSDENIED - Access denied for requested access//---------------------------------------------------------------------NVRESULT NVAPIENTRY NvGvoOpen(UINT nAdapterNumber IN,UINT nReserved IN,DWORD dwClass IN,DWORD dwAccessRights IN,NVGVOHANDLE* phGvoHandle OUT);NvGvoClose()//---------------------------------------------------------------------// Function: NvGvoClose// Description: Closes graphics adapter for Graphics to Video operations// using the OpenGL application interface. Closing an// OpenGL handle releases the device.// Parameters: hGvoHandle - Handle to graphics adapter// Returns: NV_OK - Success//---------------------------------------------------------------------NVRESULT NVAPIENTRY NvGvoClose(NVGVOHANDLE hGvoHandle IN);