Nvidia Frame Synchronization User Manual page 35

C 3
HAPTER
Using the OpenGL Extensions
wglGenlockSampleRateI3D
This call sets the trigger pulse as a function of the specified sync source sampling rate.
Function
Parameters In
Parameters Out
Return Values
wglGetGenlockSampleRateI3D
This call queries the current sync source sampling rate for the trigger pulse.
Function
Parameters In
Parameters Out
Return Values
wglGenlockSourceDelayI3D
This call specifies the delay to apply to the trigger pulse.
Function
Parameters In
Parameters Out
Return Values
32
BOOL wglGenlockSampleRateI3D(HDC hDC, UINT uRate)
hDC - Device context for the frame lock card, or a window residing on the
frame lock card.
uRate - Specifies every nth pulse of the sync source signal to use for the
trigger pulse.
For example, if uRate were set to a value of 2, every other sync
source pulse would generate a trigger pulse. uRate must be in the
range of 1–6.
TRUE: Success
FALSE: Failure
BOOL wglGetGenlockSampleRateI3D(HDC hDC, UINT *uRate)
hDC - Device context for the frame lock card, or a window residing on the
frame lock card.
*uRate - The nth pulse of the sync source used for the trigger pulse.
For example, if uRate were set to a value of 2, every other sync
source pulse would generate a trigger pulse.
TRUE: Success
FALSE: Failure
BOOL wglGenlockSourceDelayI3D(HDC hDC, UINT uDelay)
hDC - Device context for the frame lock card, or a window residing on the
frame lock card.
uDelay - The delay, in pixels, from the sync source trigger edge to the
actual trigger pulse.
TRUE: Success
FALSE: Failure
Frame Synchronization User's Guide– Version 3.0
NVIDIA Corporation