swapbu(3G)

swapbu - exchanges the front and back buffers of the normal framebuffer

As shipped in IRIX 6.5.5. Unchanged since IRIX 6.5.

NAME
     swapbu - exchanges the front and back buffers of the normal framebuffer

FORTRAN SPECIFICATION
     subroutine swapbu

PARAMETERS
     none

DESCRIPTION
     swapbu causes the front and back buffers of the normal framebuffer to be
     exchanged during the next vertical retrace period.  Once an image is
     fully drawn in the back buffer, swapbu displays it.  swapbu is ignored
     when the normal framebuffer is in single buffer mode.  It has no effect
     on the overlay, underlay, or popup framebuffers, regardless of the
     current draw mode.

     To swap overlay or underlay buffers, or to swap buffers in more than one
     framebuffer simultaneously, you must use mswapb.

SEE ALSO
     double, drawmo, mswapb, swapin