Copyright (c) 1995 Hewlett-Packard Company
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Except as contained in this notice, the name of the Hewlett-Packard Company shall not
be used in advertising or otherwise to promote the sale, use or other
dealing in this Software without prior written authorization from the
Hewlett-Packard Company.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Except as contained in this notice, the name of the Hewlett-Packard Company shall not
be used in advertising or otherwise to promote the sale, use or other
dealing in this Software without prior written authorization from the
Hewlett-Packard Company.
XdbeSwapBuffers __libmansuffix__ __xorgversion__ "X FUNCTIONS"
NAME
XdbeSwapBuffers - swaps front and back DBE buffers.
SYNOPSIS
#include <X11/extensions/Xdbe.h>
Status XdbeSwapBuffers(
Display *dpy,
XdbeSwapInfo *swap_info,
int num_windows)
DESCRIPTION
This function swaps the front and back buffers for a list of windows. The
argument
num_windows specifies how many windows are to have their buffers
swapped; it is the number of elements in the
swap_info array. The argument
swap_info specifies the information needed per window to do the swap.
The
XdbeSwapInfo structure has the following fields:
Window swap_window
XdbeSwapAction swap_action
swap_window specifies the window for which to swap buffers.
swap_action specifies the swap action to use for this
swap_window.
swap_action determines what will happen to the new back buffer of the
swap_window it is paired with in the list in addition to making the old back buffer
become visible. The defined actions are as follows:
XdbeUndefined
The contents of the new back buffer become undefined. This may be the most
efficient action since it allows the implementation to discard the contents of
the buffer if it needs to.
XdbeBackground
The unobscured region of the new back buffer will be tiled with the
window background. The background action allows devices to use a fast clear
capability during a swap.
XdbeUntouched
The unobscured region of the new back buffer will be unmodified by the swap.
XdbeCopied
The unobscured region of the new back buffer will be the contents of the old
back buffer
ERRORS
BadMatch
A non-double-buffered window was specified or a window was specified twice.
BadWindow
An invalid window was specified.
BadValue
An invalid swap action was specified.
SEE ALSO
DBE,
XdbeAllocateBackBufferName(), XdbeBeginIdiom(), XdbeDeallocateBackBufferName(), XdbeEndIdiom(), XdbeFreeVisualInfo(), XdbeGetBackBufferAttributes(), XdbeGetVisualInfo(), XdbeQueryExtension().