Correction de subwin3.c

/* fenetre avec 3 sous-fenetres possedant chacune son curseur */

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>

GC      gc; 
Display *display; 
int     screen, i; 
Window  win, subwin[3], root; 
unsigned long white_pixel, black_pixel;  
Cursor cursor;
 
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, 340, 5, black_pixel, white_pixel); 
  cursor = XCreateFontCursor(display, XC_man);
  XDefineCursor(display, win, cursor);
  XStoreName (display, win, "subwin3"); 
  XMapWindow (display, win); 
  for (i=0; i<3; ++i) {
    subwin[i] = XCreateSimpleWindow (display, win, 20, 10+i*110, 60, 100, 2,
				     black_pixel, white_pixel); 
    cursor = XCreateFontCursor(display, XC_man +i+1);
    XDefineCursor(display, subwin[i], cursor);
    XMapWindow (display, subwin[i]);
  }

  for (;;) { 
    XEvent ev; 
    XNextEvent (display, &ev); 
    switch (ev.type) { 
    default : 
      break;            
    } 
  } 
} 
 

chapitre de l'exercice index général fonctions de la XLib événements types dans XLib