basekernel/user/test/printer.c

36 lines
703 B
C

/*
Copyright (C) 2016-2019 The University of Notre Dame
This software is distributed under the GNU General Public License.
See the file LICENSE for details.
*/
/*
A fun graphics demo that features a line segment bouncing around the screen.
*/
#include "library/syscalls.h"
#include "library/string.h"
#include "library/user-io.h"
#define WIDTH (200)
#define HEIGHT (200)
int main(int argc, char *argv[])
{
draw_window(KNO_STDWIN);
draw_color(0, 0, 255);
draw_clear(0, 0, WIDTH, HEIGHT);
draw_flush();
int cd = syscall_open_console(KNO_STDWIN);
if(cd < 0) {
printf("Console open failed!\n");
return 2;
}
syscall_object_dup(cd, KNO_STDOUT);
printf("hello world!\n");
return 0;
}