NVIDIA Corporation
Quadro FX 4800/5800 and Quadro CX SDI User’s Guide – Version 1.0  49
C
HAPTER 5
API Control
Windows XP NvGvo API Description
ThissectiondescribestheNvGvoAPIsinthefollowingsections:
• “NvGvoFunctionDescription”onpage 49
• “NvGvoStructures,Enumerations,andDefines”onpage 56
NvGvo Function Description
Table 5.1
NvGvo Function Index
Call Description
NvGvoCaps()
Determine the graphics-to-video capabilities of 
the graphics card.
NvGvoOpen()
Open the graphics card for graphics-to-video 
operations using the OpenGL application 
interface.
NvGvoClose()
Close the graphics card for graphics-to-video 
operations using the OpenGL application 
interface.
NvGvoDesktopOpen()
Open the graphics cards for graphics-to-vVideo 
operations  using the Desktop transparent mode 
interface.
NvGvoDesktopClose()
Close the graphics cards for graphics-to-video 
operations  using the Desktop transparent mode 
interface. 
NvGvoStatus()
Get the graphics-to-video status. 
NvGvoSyncFormatDetect()
Detect the video format of the iincoming sync 
signal.
NvGvoConfigGet()
Get the current graphics-to-video configuration. 
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 with frame 
lock mode.
NvGvoEnumDataFormats()
Enumerate the supported SDI data formats.