/*
 *  Checkbox
 *  --------
 *  This program creates a window, two checkboxes and a quit button.
 *
 *  It uses the checkbox call-back function choose_topping to print
 *  a message saying which checkbox has just been selected.
 *
 *  The ischecked function tells you whether a checkbox is currently
 *  checked. Notice that each call-back gets passed an object as a
 *  parameter. This object is whichever object called that call-back.
 *  In the case of the quit function this will be the quit button.
 *  In the case of choose_topping this will be whichever checkbox the
 *  user clicked on.
 */

#include <graphapp.h>

void choose_topping(checkbox c)
{
    if (ischecked(c))
	printf("Oh, you want %s do you?\n", gettext(c));
    else
	printf("Don't want %s now, I see.\n", gettext(c));
}

void quit(button b)
{
  exitapp();
}

void main(void)
{
    window w;
    checkbox c1, c2;
    button b;

    w  = newwindow("Pizza", rect(0,0,200,150), StandardWindow);
    c1 = newcheckbox("Ham", rect(10,10,160,25), choose_topping);
    c2 = newcheckbox("Mushrooms", rect(10,40,160,25), choose_topping);
    b  = newbutton("Quit", rect(10,80,80,30), quit);
    show(w);
    mainloop();
}