Function

CVDisplayLinkStart(_:)

Activates a display link.

Declaration

func CVDisplayLinkStart(_ displayLink: CVDisplayLink) -> CVReturn

Parameters

displayLink

The display link to be activated.

Return Value

A Core Video result code. SeeCore Video Constants for possible values.

Discussion

Calling this function starts the display link thread, which then periodically calls back to your application to request that you display frames. If the specified display link is already running, CVDisplayLinkStart returns an error.

See Also

Managing Display Links