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44 Quadro FX 4500/5500 SDI User’s Guide– Version 2.0
C
HAPTER 5
API Control
SDI Application Programming Overview
Application programming of the NVIDIA Quadro FX 4000/FX4500 SDI consists of two
principle parts–device control and data transfer.
• Device control handles the hardware configuration as well as the starting and stopping
of data transfers.
This chapter covers the APIs related to data control.
• Data transfer is the sequence of operations that send graphics data to the video device
for output.
Under WindowsXP
• Device control is handled by the NvGvo API, described in this chapter.
• Data transfer operations are performed by the OpenGL extension
WGL_NV_video_out.
Under Linux
• Device control is handled by the NV-CONTROL X extension, described in this
chapter.
• Data transfer operations are performed by the OpenGL extension
GLX_NV_video_output.