NVIDIA CorporationQuadro FX 4000 SDI User’s Guide – Version 2.1 25C HAPTER 4API ControlAPI DescriptionFunction IndexCall DescriptionNvGvoCaps() Determine the graphics-to-video capabilities ofthe graphics card.NvGvoOpen() Open the graphics card for graphics-to-videooperations using the OpenGL applicationinterface.NvGvoClose() Close the graphics card for graphics-to-videooperations using the OpenGL applicationinterface.NvGvoDesktopOpen() Open the graphics cards for graphics-to-vVideooperations using the Desktop transparentmode interface.NvGvoDesktopClose() Close the graphics cards for graphics-to-videooperations using the Desktop transparentmode interface.NvGvoStatus() Get the graphics-to-video status.NvGvoSyncFormatDetect() Detect the video format of the iincoming syncsignal.NvGvoConfigGet() Get the current graphics-to-videoconfiguration.NvGvoConfigSet() Set the graphics-to-video configuration.NvGvoIsRunning() Determine if there is an SDI out video stream.NvGvoStart() Start the SDI out video stream.NvGvoStop() Stop the SDI out video stream.NvGvoEnumSignalFormats() Enumerate the supported SDI signal formats.NvGvoIsFrameLockModeCompatible() Verify whether a mode is compatible withframe lock mode.NvGvoEnumDataFormats() Enumerate the supported SDI data formats.