if (purple_prefs_get_bool(OPT_WINTRANS_IM_SLIDER)) {			add_slider(win);		}	}	/* If we're moving from one window to another,	 * add the focus listeners to the new window if not already there */	if (oldwin != NULL && oldwin != newwin) {		if (pidgin_conv_window_get_gtkconv_count(newwin) == 0) {			g_signal_connect(G_OBJECT(win), "focus_in_event",				G_CALLBACK(focus_conv_win_cb), win);			g_signal_connect(G_OBJECT(win), "focus_out_event",				G_CALLBACK(focus_conv_win_cb), win);		}		/* If we've moved the last conversation, cleanup the window */		if (pidgin_conv_window_get_gtkconv_count(oldwin) == 1)			cleanup_conv_window(oldwin);	}}static void update_convs_wintrans(GtkWidget *toggle_btn, const char *pref) {	purple_prefs_set_bool(pref, gtk_toggle_button_get_active(		GTK_TOGGLE_BUTTON(toggle_btn)));	if (purple_prefs_get_bool(OPT_WINTRANS_IM_ENABLED)) {		GList *wins;		for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {			PidginWindow *win = wins->data;			set_conv_window_trans(NULL, win);		}		if (!purple_prefs_get_bool(OPT_WINTRANS_IM_SLIDER))			remove_sliders();	}	else		remove_convs_wintrans(FALSE);}static void purple_new_conversation(PurpleConversation *conv) {	PidginWindow *win = pidgin_conv_get_window(PIDGIN_CONVERSATION(conv));	/* If it is the first conversation in the window,	 * add the sliders, and set transparency */	if (pidgin_conv_window_get_gtkconv_count(win) == 1) {		GtkWidget *window = win->window;		set_conv_window_trans(NULL, win);		g_signal_connect(G_OBJECT(window), "focus_in_event",			G_CALLBACK(focus_conv_win_cb), window);		g_signal_connect(G_OBJECT(window), "focus_out_event",			G_CALLBACK(focus_conv_win_cb), window);	}}static void blist_created_cb(PurpleBuddyList *purple_blist, gpointer data) {	if (blist) {		if (purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED)) {			set_wintrans(blist,				purple_prefs_get_int(OPT_WINTRANS_BL_ALPHA),				TRUE,				purple_prefs_get_bool(OPT_WINTRANS_BL_ONTOP));		}		g_signal_connect(G_OBJECT(blist), "focus_in_event",			G_CALLBACK(focus_blist_win_cb), blist);		g_signal_connect(G_OBJECT(blist), "focus_out_event",			G_CALLBACK(focus_blist_win_cb), blist);	}}static void alpha_change(GtkWidget *w, gpointer data) {	GList *wins;	int imalpha = gtk_range_get_value(GTK_RANGE(w));	for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {		PidginWindow *win = wins->data;		set_wintrans(win->window, imalpha, TRUE,			purple_prefs_get_bool(OPT_WINTRANS_IM_ONTOP));	}}static void alpha_pref_set_int (GtkWidget *w, GdkEventFocus *e, const char *pref){	int alpha = gtk_range_get_value(GTK_RANGE(w));	purple_prefs_set_int(pref, alpha);}static void bl_alpha_change(GtkWidget *w, gpointer data) {	if (blist)		change_alpha(w, blist);}static void update_existing_convs() {	GList *wins;	for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {		PidginWindow *win = wins->data;		GtkWidget *window = win->window;		set_conv_window_trans(NULL, win);		g_signal_connect(G_OBJECT(window), "focus_in_event",			G_CALLBACK(focus_conv_win_cb), window);		g_signal_connect(G_OBJECT(window), "focus_out_event",			G_CALLBACK(focus_conv_win_cb), window);	}}/* *  EXPORTED FUNCTIONS */static gboolean plugin_load(PurplePlugin *plugin) {	MySetLayeredWindowAttributes = (void*) wpurple_find_and_loadproc(		"user32.dll", "SetLayeredWindowAttributes");	if (!MySetLayeredWindowAttributes) {		purple_debug_error(WINTRANS_PLUGIN_ID,			"SetLayeredWindowAttributes API not found (Required W2K+)\n");		return FALSE;	}	purple_signal_connect(purple_conversations_get_handle(),		"conversation-created", plugin,		PURPLE_CALLBACK(purple_new_conversation), NULL);	/* Set callback to remove window from the list, if the window is destroyed */	purple_signal_connect(purple_conversations_get_handle(),		"deleting-conversation", plugin,		PURPLE_CALLBACK(purple_conversation_delete), NULL);	purple_signal_connect(pidgin_conversations_get_handle(),		"conversation-dragging", plugin,		PURPLE_CALLBACK(set_conv_window_trans), NULL);	update_existing_convs();	if (blist)		blist_created_cb(NULL, NULL);	else		purple_signal_connect(pidgin_blist_get_handle(),			"gtkblist-created", plugin,			PURPLE_CALLBACK(blist_created_cb), NULL);	return TRUE;}static gboolean plugin_unload(PurplePlugin *plugin) {	purple_debug_info(WINTRANS_PLUGIN_ID, "Unloading win2ktrans plugin\n");	remove_convs_wintrans(TRUE);	if (blist) {		if (purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED))			set_wintrans(blist, 0, FALSE, FALSE);		/* Remove the focus cbs */		g_signal_handlers_disconnect_by_func(G_OBJECT(blist),			G_CALLBACK(focus_blist_win_cb), blist);	}	return TRUE;}static GtkWidget *get_config_frame(PurplePlugin *plugin) {	GtkWidget *ret;	GtkWidget *imtransbox, *bltransbox;	GtkWidget *hbox;	GtkWidget *label, *slider;	GtkWidget *button;	GtkWidget *trans_box;	ret = gtk_vbox_new(FALSE, 18);	gtk_container_set_border_width(GTK_CONTAINER (ret), 12);	/* IM Convo trans options */	imtransbox = pidgin_make_frame(ret, _("IM Conversation Windows"));	button = wpurple_button(_("_IM window transparency"),		OPT_WINTRANS_IM_ENABLED, imtransbox);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(update_convs_wintrans),		(gpointer) OPT_WINTRANS_IM_ENABLED);	trans_box = gtk_vbox_new(FALSE, 18);	if (!purple_prefs_get_bool(OPT_WINTRANS_IM_ENABLED))		gtk_widget_set_sensitive(GTK_WIDGET(trans_box), FALSE);	gtk_widget_show(trans_box);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(pidgin_toggle_sensitive), trans_box);	button = wpurple_button(_("_Show slider bar in IM window"),		OPT_WINTRANS_IM_SLIDER, trans_box);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(update_convs_wintrans),		(gpointer) OPT_WINTRANS_IM_SLIDER);	button = pidgin_prefs_checkbox(		_("Remove IM window transparency on focus"),		OPT_WINTRANS_IM_ONFOCUS, trans_box);	button = wpurple_button(_("Always on top"), OPT_WINTRANS_IM_ONTOP,		trans_box);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(update_convs_wintrans),		(gpointer) OPT_WINTRANS_IM_ONTOP);	gtk_box_pack_start(GTK_BOX(imtransbox), trans_box, FALSE, FALSE, 5);	/* IM transparency slider */	hbox = gtk_hbox_new(FALSE, 5);	label = gtk_label_new(_("Opacity:"));	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);	slider = gtk_hscale_new_with_range(50, 255, 1);	gtk_range_set_value(GTK_RANGE(slider),		purple_prefs_get_int(OPT_WINTRANS_IM_ALPHA));	gtk_widget_set_usize(GTK_WIDGET(slider), 200, -1);	g_signal_connect(GTK_OBJECT(slider), "value-changed",		GTK_SIGNAL_FUNC(alpha_change), NULL);	g_signal_connect(GTK_OBJECT(slider), "focus-out-event",		GTK_SIGNAL_FUNC(alpha_pref_set_int),		(gpointer) OPT_WINTRANS_IM_ALPHA);	gtk_box_pack_start(GTK_BOX(hbox), slider, FALSE, TRUE, 5);	gtk_widget_show_all(hbox);	gtk_box_pack_start(GTK_BOX(trans_box), hbox, FALSE, FALSE, 5);	/* Buddy List trans options */	bltransbox = pidgin_make_frame (ret, _("Buddy List Window"));	button = wpurple_button(_("_Buddy List window transparency"),		OPT_WINTRANS_BL_ENABLED, bltransbox);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(set_blist_trans),		(gpointer) OPT_WINTRANS_BL_ENABLED);	trans_box = gtk_vbox_new(FALSE, 18);	if (!purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED))		gtk_widget_set_sensitive(GTK_WIDGET(trans_box), FALSE);	gtk_widget_show(trans_box);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(pidgin_toggle_sensitive), trans_box);	button = pidgin_prefs_checkbox(		_("Remove Buddy List window transparency on focus"),		OPT_WINTRANS_BL_ONFOCUS, trans_box);	button = wpurple_button(_("Always on top"), OPT_WINTRANS_BL_ONTOP,		trans_box);	g_signal_connect(GTK_OBJECT(button), "clicked",		GTK_SIGNAL_FUNC(set_blist_trans),		(gpointer) OPT_WINTRANS_BL_ONTOP);	gtk_box_pack_start(GTK_BOX(bltransbox), trans_box, FALSE, FALSE, 5);	/* IM transparency slider */	hbox = gtk_hbox_new(FALSE, 5);	label = gtk_label_new(_("Opacity:"));	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);	slider = gtk_hscale_new_with_range(50, 255, 1);	gtk_range_set_value(GTK_RANGE(slider),		purple_prefs_get_int(OPT_WINTRANS_BL_ALPHA));	gtk_widget_set_usize(GTK_WIDGET(slider), 200, -1);	g_signal_connect(GTK_OBJECT(slider), "value-changed",		GTK_SIGNAL_FUNC(bl_alpha_change), NULL);	g_signal_connect(GTK_OBJECT(slider), "focus-out-event",		GTK_SIGNAL_FUNC(alpha_pref_set_int),		(gpointer) OPT_WINTRANS_BL_ALPHA);	gtk_box_pack_start(GTK_BOX(hbox), slider, FALSE, TRUE, 5);	gtk_widget_show_all(hbox);	gtk_box_pack_start(GTK_BOX(trans_box), hbox, FALSE, FALSE, 5);	gtk_widget_show_all(ret);	return ret;}static PidginPluginUiInfo ui_info ={	get_config_frame,	0, /* page_num (Reserved) */	/* padding */	NULL,	NULL,	NULL,	NULL};static PurplePluginInfo info ={	PURPLE_PLUGIN_MAGIC,	PURPLE_MAJOR_VERSION,	PURPLE_MINOR_VERSION,	PURPLE_PLUGIN_STANDARD,		/**< type           */	PIDGIN_PLUGIN_TYPE,		/**< ui_requirement */	0,				/**< flags          */	NULL,				/**< dependencies   */	PURPLE_PRIORITY_DEFAULT,		/**< priority       */	WINTRANS_PLUGIN_ID,		/**< id             */	N_("Transparency"),		/**< name           */	VERSION,			/**< version        */					/**  summary        */	N_("Variable Transparency for the buddy list and conversations."),					/**  description    */	N_("This plugin enables variable alpha transparency on conversation windows and the buddy list.\n\n"	"* Note: This plugin requires Win2000 or greater."),	"Herman Bloggs <hermanator12002@yahoo.com>",	/**< author         */	PURPLE_WEBSITE,			/**< homepage       */	plugin_load,			/**< load           */	plugin_unload,			/**< unload         */	NULL,				/**< destroy        */	&ui_info,			/**< ui_info        */	NULL,				/**< extra_info     */	NULL,				/**< prefs_info     */	NULL,				/**< actions        */	/* padding */	NULL,	NULL,	NULL,	NULL};static voidinit_plugin(PurplePlugin *plugin){	purple_prefs_add_none("/plugins/gtk/win32");	purple_prefs_add_none("/plugins/gtk/win32/wintrans");	purple_prefs_add_bool(OPT_WINTRANS_IM_ENABLED, FALSE);	purple_prefs_add_int(OPT_WINTRANS_IM_ALPHA, 255);	purple_prefs_add_bool(OPT_WINTRANS_IM_SLIDER, FALSE);	purple_prefs_add_bool(OPT_WINTRANS_IM_ONFOCUS, FALSE);	purple_prefs_add_bool(OPT_WINTRANS_IM_ONTOP, FALSE);	purple_prefs_add_bool(OPT_WINTRANS_BL_ENABLED, FALSE);	purple_prefs_add_int(OPT_WINTRANS_BL_ALPHA, 255);	purple_prefs_add_bool(OPT_WINTRANS_BL_ONFOCUS, FALSE);	purple_prefs_add_bool(OPT_WINTRANS_BL_ONTOP, FALSE);}PURPLE_INIT_PLUGIN(wintrans, init_plugin, info)