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/******************************************************************************
*                            recordMyDesktop                                  *
*******************************************************************************
*                                                                             *
*            Copyright (C) 2006,2007,2008 John Varouhakis                     *
*                                                                             *
*                                                                             *
*   This program is free software; you can redistribute it and/or modify      *
*   it under the terms of the GNU General Public License as published by      *
*   the Free Software Foundation; either version 2 of the License, or         *
*   (at your option) any later version.                                       *
*                                                                             *
*   This program is distributed in the hope that it will be useful,           *
*   but WITHOUT ANY WARRANTY; without even the implied warranty of            *
*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
*   GNU General Public License for more details.                              *
*                                                                             *
*   You should have received a copy of the GNU General Public License         *
*   along with this program; if not, write to the Free Software               *
*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA  *
*                                                                             *
*                                                                             *
*                                                                             *
*   For further information contact me at johnvarouhakis@gmail.com            *
******************************************************************************/

#include "config.h"
#include "rmd_queryextensions.h"

#include "rmd_types.h"

#include <X11/extensions/shape.h>
#include <X11/extensions/Xfixes.h>
#include <X11/extensions/Xdamage.h>
#include <stdlib.h>



void rmdQueryExtensions(	Display *dpy,
				ProgArgs *args,
				int *damage_event,
				int *damage_error,
				int *shm_opcode) {
	int	xf_event_basep,
		xf_error_basep,
		shm_event_base,
		shm_error_base,
		shape_event_base,
		shape_error_base;

	if (	!args->full_shots &&
		!XDamageQueryExtension(dpy, damage_event, damage_error)) {

		fprintf(stderr,	"XDamage extension not found!!!\n"
				"Try again using the --full-shots option, though\n"
				"enabling XDamage is highly recommended,\n"
				"for performance reasons.\n");
		exit(4);
	}

	if (	!args->noshared &&
		!XQueryExtension(dpy, "MIT-SHM", shm_opcode, &shm_event_base, &shm_error_base)) {

		args->noshared = 1;
		fprintf(stderr,	"Shared Memory extension not present!\n"
				"Try again using the --no-shared option\n");
		exit(5);
	}

	if (	args->xfixes_cursor &&
		XFixesQueryExtension(dpy, &xf_event_basep, &xf_error_basep) == False) {

		args->xfixes_cursor = 0;
		fprintf(stderr,	"Xfixes extension not present!\n"
				"Please run with the -dummy-cursor or"
				" --no-cursor option.\n");
		exit(6);
	}

	if (	!args->noframe &&
		!XShapeQueryExtension(dpy, &shape_event_base, &shape_error_base)) {

		fprintf(stderr,	"XShape Not Found!!!\n"
				"Frame won't be available.\n");

		args->noframe = 1;
	}
}
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