xcb_dbe_swap_buffers(3) XCB Requests xcb_dbe_swap_buffers(3)

NAME

xcb_dbe_swap_buffers - Swaps front and back buffers

SYNOPSIS

#include <xcb/dbe.h>

Request function

xcb_void_cookie_t xcb_dbe_swap_buffers(xcb_connection_t *conn,
uint32_t n_actions, const xcb_dbe_swap_info_t *actions);

REQUEST ARGUMENTS

conn The XCB connection to X11.

n_actions Number of swap actions in actions.

actions List of windows on which to swap buffers.

DESCRIPTION

Swaps the front and back buffers on the specified windows. The front
and back buffers retain their ids, so that the window id continues to
refer to the front buffer, while the back buffer id created by this
extension continues to refer to the back buffer. Back buffer contents
is moved to the front buffer. Back buffer contents after the
operation depends on the given swap action. The optimal swap action
depends on how each frame is rendered. For example, if the buffer is
cleared and fully overwritten on every frame, the "untouched" action,
which throws away the buffer contents, would provide the best
performance. To eliminate visual artifacts, the swap will occure
during the monitor VSync, if the X server supports detecting it.

RETURN VALUE

Returns an xcb_void_cookie_t. Errors (if any) have to be handled in
the event loop.

If you want to handle errors directly with xcb_request_check instead,
use xcb_dbe_swap_buffers_checked. See xcb-requests(3) for details.

ERRORS

This request does never generate any errors.

SEE ALSO

xcb-requests(3)

AUTHOR

Generated from dbe.xml. Contact xcb@lists.freedesktop.org for
corrections and improvements.

X Version 11 libxcb 1.16.1 xcb_dbe_swap_buffers(3)