GTK + allows you to switch between different statuses of irregular buttons.

Allows you to switch between images in different States with irregular buttons. PNG transparent buttons

It's just some code for technical verification. Just encapsulate it and pull it.

# Include
<GTK/GTK. h>

Gint mouse_event_handle (gtkwidget * widget,
Gdkeventbutton * event, gpointer data)
{

Switch (Event-> button ){
Case 1:

Printf ("Left ");
Break;
Case 2:

Printf ("Middle ");
Break;
Case 3:

Printf ("right ");
Break;
Default:

Printf ("unknown ");
}

Gdkpixbuf * pixbuf;

Gdkpixmap * pixmap;
Gdkbitmap * bitmap;
Gtkwidget
* Oldimage;
Gtkwidget * newimage;
Switch (Event-> type ){

Case gdk_button_press:
Printf ("mouse button press
(%. 2f, %. 2f)/n ", event-> X, event-> Y );
Oldimage =
Gtk_widget (gtk_container_children (gtk_container (widget)-> data );

Gtk_object_ref (gtk_object (oldimage ));

Gtk_container_remove (gtk_container (widget), oldimage );

Pixbuf = gdk_pixbuf_new_from_file ("./press.png", null );

Newimage = gtk_image_new_from_pixbuf (pixbuf );

Gdk_pixbuf_render_pixmap_and_mask (pixbuf, & pixmap, & bitmap,
128 );
Gtk_widget_shape_combine_mask (widget, bitmap, 0,
0 );
Gtk_container_add (gtk_container (widget), newimage );

Gtk_widget_show (newimage );
Break;

Case gdk_button_release:
Printf ("mouse button release
(%. 2f, %. 2f)/n ", event-> X, event-> Y );
Oldimage =
Gtk_widget (gtk_container_children (gtk_container (widget)-> data );

Gtk_object_ref (gtk_object (oldimage ));

Gtk_container_remove (gtk_container (widget), oldimage );

Pixbuf = gdk_pixbuf_new_from_file ("./enter.png", null );

Newimage = gtk_image_new_from_pixbuf (pixbuf );

Gdk_pixbuf_render_pixmap_and_mask (pixbuf, & pixmap, & bitmap,
128 );
Gtk_widget_shape_combine_mask (widget, bitmap, 0,
0 );
Gtk_container_add (gtk_container (widget), newimage );

Gtk_widget_show (newimage );
Break;

Case gdk_enter_notify:
Printf ("Mouse enter./N ");

Oldimage =
Gtk_widget (gtk_container_children (gtk_container (widget)-> data );

Gtk_object_ref (gtk_object (oldimage ));

Gtk_container_remove (gtk_container (widget), oldimage );

Pixbuf = gdk_pixbuf_new_from_file ("./enter.png", null );

Newimage = gtk_image_new_from_pixbuf (pixbuf );

Gdk_pixbuf_render_pixmap_and_mask (pixbuf, & pixmap, & bitmap,
128 );
Gtk_widget_shape_combine_mask (widget, bitmap, 0,
0 );
Gtk_container_add (gtk_container (widget), newimage );

Gtk_widget_show (newimage );
Break;

Case gdk_leave_policy:
Printf ("Mouse leave./N ");

Oldimage =
Gtk_widget (gtk_container_children (gtk_container (widget)-> data );

Gtk_object_ref (gtk_object (oldimage ));

Gtk_container_remove (gtk_container (widget), oldimage );

Pixbuf = gdk_pixbuf_new_from_file ("./leave.png", null );

Newimage = gtk_image_new_from_pixbuf (pixbuf );

Gdk_pixbuf_render_pixmap_and_mask (pixbuf, & pixmap, & bitmap,
128 );
Gtk_widget_shape_combine_mask (widget, bitmap, 0,
0 );
Gtk_container_add (gtk_container (widget), newimage );

Gtk_widget_show (newimage );
Break;

Default:
Printf ("/N ");
Break;
}

Return false;
}

Int main (INT argc, char * argv [])
{

Gtkwidget * window = NULL;
Gdkpixbuf * pixbuf = NULL;

Gdkpixmap * pixmap = NULL;
Gdkbitmap * bitmap = NULL;

Gtkwidget * image = NULL;
Gtkwidget * eventbox = NULL;

Gtkwidget * fixed = NULL;

Gtk_init (& argc, & argv );


/* Create the window */
Window =
Gtk_window_new (gtk_window_toplevel );

Gtk_window_set_title (gtk_window (window), "zqbutton Demo ");

Gtk_widget_set_events (window, gdk_scroll_mask );

Gtk_widget_set_app_paintable (window, true );
Gtk_widget_realize
(Window );
// Gtk_window_fullscreen (gtk_window (window ));

Gtk_widget_set_size_request (window, 800,600 );
G_signal_connect
(G_object (window), "delete_event", g_callback (gtk_main_quit), null );


Fixed = gtk_fixed_new ();
Gtk_container_add
(Gtk_container (window), fixed );
Pixbuf = gdk_pixbuf_new_from_file
("./Bg.jpg", null );
Pixmap = gdk_pixmap_new (fixed-> window,
Gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),-1 );

Gdk_pixbuf_render_to_drawable (pixbuf, pixmap,

Fixed-> style-> fg_gc [gtk_state_normal],
0, 0, 0,

Gdk_pixbuf_get_width (pixbuf ),

Gdk_pixbuf_get_height (pixbuf ),

Gdk_rgb_dither_normal, 0, 0 );
G_object_unref (pixbuf );

Gdk_window_set_back_pixmap (fixed-> window, pixmap, false );

Gtk_widget_show (fixed );

Eventbox = gtk_event_box_new ();

Gtk_widget_set_events (eventbox, gdk_motion_policy | gdk_button_press |
Gdk_button_release
| Gdk_enter_notify | gdk_leave_notify );


G_signal_connect (g_object (eventbox), "button_press_event ",
Gtk_signal_func (mouse_event_handle), null );

G_signal_connect (g_object (eventbox), "button_release_event ",
Gtk_signal_func (mouse_event_handle), null );

G_signal_connect (g_object (eventbox), "enter_policy_event ",
Gtk_signal_func (mouse_event_handle), null );

G_signal_connect (g_object (eventbox), "leave_policy_event ",
Gtk_signal_func (mouse_event_handle), null );
Gtk_fixed_put
(Gtk_fixed (fixed), eventbox, 10, 10 );
Pixbuf =
Gdk_pixbuf_new_from_file ("./leave.png", null );
Image =
Gtk_image_new_from_pixbuf (pixbuf );

Gdk_pixbuf_render_pixmap_and_mask (pixbuf, & pixmap, & bitmap,
128 );
Gtk_widget_shape_combine_mask (eventbox, bitmap, 0, 0 );


Gtk_container_add (gtk_container (eventbox), image );

Gtk_widget_show (image );
Gtk_widget_show (eventbox );


Gtk_widget_show (window );
Gtk_main ();
Return false;
}