How do I use images in a c program

[errigour]

I want to use images in a c program I use the operating system linux since windows really doesn't support programming with free compilers. O kind of want to make a grid maybea home made map maker but I have to know how to use images and place them in a grid.

[spongefreddie]

I'm no expert, but I'm pretty sure GCC, Pelles C, Open Watcom, Borland C++ 5.5 are all free, cross platform (including Windows), high-quality C compilers.

Also, Code:Blocks runs on Linux, Windows *and* Apple OS's.

[hellork]

Since you said you use Linux, look at GTK+ - About
It is cross-platform and supports loading images into a click-able map.

Some boilerplate code from GtkImage:

static gboolean
button_press_callback (GtkWidget      *event_box,
                       GdkEventButton *event,
                       gpointer        data)
{
  g_print ("Event box clicked at coordinates %f,%f\n",
           event->x, event->y);

  /* Returning TRUE means we handled the event, so the signal
   * emission should be stopped (don't call any further
   * callbacks that may be connected). Return FALSE
   * to continue invoking callbacks.
   */
  return TRUE;
}

static GtkWidget*
create_image (void)
{
  GtkWidget *image;
  GtkWidget *event_box;

  image = gtk_image_new_from_file ("myfile.png");

  event_box = gtk_event_box_new ();

  gtk_container_add (GTK_CONTAINER (event_box), image);

  g_signal_connect (G_OBJECT (event_box),
                    "button_press_event",
                    G_CALLBACK (button_press_callback),
                    image);

  return image;
}