/usr/share/doc/libg2-dev/examples/pointer.c is in libg2-dev 0.72-5.
This file is owned by root:root, with mode 0o644.
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** Copyright (C) 1998-2001 Ljubomir Milanovic & Horst Wagner
** This file is part of the g2 library
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library 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
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
******************************************************************************/
#include <stdio.h>
#include <g2.h>
#include <g2_X11.h>
int main()
{
int d;
double x, y;
unsigned int button;
d=g2_open_X11(100, 50);
g2_set_coordinate_system(d, 50, 25, 50., 25.);
g2_line(d, -1, 0, 1, 0);
g2_line(d, 0, -1, 0, 1);
printf("Press <Enter> to start\n");
getchar();
for(;;) {
g2_query_pointer(d, &x, &y, &button);
printf("%f %f 0x%04x\n", x, y, button);
}
return 0;
}
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