swapinterval(3G)					      swapinterval(3G)

NAME
     swapinterval - defines a minimum time between buffer swaps

C SPECIFICATION
     void swapinterval(i)
     short i;

PARAMETERS
     i	 expects the number of retraces to wait before swapping the front and
	 back buffers.	The default interval is 1.

DESCRIPTION
     swapinterval defines a minimum number of retraces between buffer swaps.
     For example, for a swap interval of 5, the system refreshes the screen at
     least five times between successive buffer swaps. swapinterval changes
     frames at a steady rate if a new image can be created within one swap
     interval.

     Like the swapbuffers and mswapbuffers commands that it affects,
     swapinterval is ignored by framebuffers in single buffer mode.

     A single swap interval counter is shared by the normal, overlay, and
     underlay framebuffers.  The interval is enforced between all buffer swap
     requests, regardless of which framebuffers are swapped.

SEE ALSO
     doublebuffer, drawmode, mswapbuffers, swapbuffers

NOTE
     This routine is available only in immediate mode.

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