Raga sto smanettando con questo semplice codice C che utilizza le librerie Xlib.h (sotto Linux ovvio :P)
Ma il compilatore da errore in questi punti:
codice:
done = 0;
while(done = 0)
{
XNextEvent(mydisplay, &myevent);
switch(myevent.type);
{
--> case Expose :
if(myevent.xexpose.count == 0)
XDrawImageString(myevent.xexpose.display, myevent.xexpose.window, mygc, 50, 50, hello, strlen(hello));
break;
--> case MappingNotify:
XRefreshKeyboardMapping((XMappingEvent *)&myevent);
break;
--> case ButtonPress:
### XDrawImageString(myevent.xbotton.display, myevent.xbotton.window, mygc, myevent.xbotton.x, myevent.xbotton.y, hi, strlen(hi));
break;
--> case KeyPress:
i = XLookupString((XKeyEvent *)&myevent, text, 10, &mykey, 0);
if(i == 1 && text[0] == 'q') done = 1;
break;
}
}
In sostanza dove ho messo le freccie dice :
--> error: case label not within a switch statement
Poi per tutte le voci myevent.xbotton : error: union has no member named `xbotton'
Preciso che le ho dichiarato le suguenti variabili:
Display *mydisplay;
Window mywindow;
GC mygc;
XEvent myevent;
KeySym mykey;
XSizeHints myhint;
int myscreen;
unsigned long myforeground, mybackground;
int i;
char text[10];
int done;