CVDisplayLinkStart(_:)
Activates a display link.
Declaration
func CVDisplayLinkStart(_ displayLink: CVDisplayLink) -> CVReturnParameters
- 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.