Correction de litecrit.c
/* affiche la frappe clavier a l'endroit de la souris sans chevauvement de
gauche vers la droite et quitte si touche q */
#include <stdio.h>
#include <X11/Xlib.h>
#define LARG 6 /* largeur de caractere + 1 */
GC gc;
Display *display;
int screen;
Window win, root;
unsigned long white_pixel, black_pixel;
int nbre;
char chaine[20];
KeySym touche;
int pos_x = 0, pos_y = 0, i=0;
main() {
if ((display = XOpenDisplay ("")) == NULL) {
fprintf (stderr, "Can't open Display\n");
exit (1);
}
gc = DefaultGC (display, screen);
screen = DefaultScreen (display);
root = RootWindow (display, screen);
white_pixel = WhitePixel (display, screen);
black_pixel = BlackPixel (display, screen);
win = XCreateSimpleWindow (display, root,
0, 0, 100, 90, 2, black_pixel, white_pixel);
XSelectInput (display, win, ExposureMask | KeyPressMask | ButtonPressMask );
XStoreName (display, win, "litecrit");
XMapWindow (display, win);
for (;;) {
XEvent ev;
XNextEvent (display, &ev);
switch (ev.type) {
case Expose :
XDrawString (display, win, gc, 10, 30, "Hello !", 7);
break;
case ButtonPress :
i = 0 ; pos_x = ev.xbutton.x ; pos_y = ev.xbutton.y ;
break;
case KeyPress :
nbre = XLookupString(&ev, chaine, 20, &touche, 0);
chaine[nbre] = 0;
if ((nbre == 1) && (chaine[0] == 'q'))
exit(0);
XDrawString(display, win, gc, pos_x + i*LARG, pos_y, chaine, nbre);
i = i + nbre;
default :
break;
}
}
}