Index: uspace/lib/ui/src/window.c
===================================================================
--- uspace/lib/ui/src/window.c	(revision 29a5a9917c778c2ef39d5fcb7843fcf719c4409e)
+++ uspace/lib/ui/src/window.c	(revision d9d6f297ceebd5c6faedb70e787017792ba14527)
@@ -74,4 +74,5 @@
 };
 
+static void wd_minimize(ui_wdecor_t *, void *);
 static void wd_maximize(ui_wdecor_t *, void *);
 static void wd_unmaximize(ui_wdecor_t *, void *);
@@ -83,4 +84,5 @@
 
 static ui_wdecor_cb_t wdecor_cb = {
+	.minimize = wd_minimize,
 	.maximize = wd_maximize,
 	.unmaximize = wd_unmaximize,
@@ -917,4 +919,16 @@
 }
 
+/** Window decoration requested window minimization.
+ *
+ * @param wdecor Window decoration
+ * @param arg Argument (window)
+ */
+static void wd_minimize(ui_wdecor_t *wdecor, void *arg)
+{
+	ui_window_t *window = (ui_window_t *) arg;
+
+	ui_window_send_minimize(window);
+}
+
 /** Window decoration requested window maximization.
  *
@@ -1041,4 +1055,16 @@
 }
 
+/** Send window minimize event.
+ *
+ * @param window Window
+ */
+void ui_window_send_minimize(ui_window_t *window)
+{
+	if (window->cb != NULL && window->cb->maximize != NULL)
+		window->cb->minimize(window, window->arg);
+	else
+		ui_window_def_minimize(window);
+}
+
 /** Send window maximize event.
  *
@@ -1131,4 +1157,24 @@
 	else
 		return ui_window_def_unfocus(window);
+}
+
+/** Default window minimize routine.
+ *
+ * @param window Window
+ * @return EOK on success or an error code
+ */
+errno_t ui_window_def_minimize(ui_window_t *window)
+{
+	errno_t rc;
+
+	if (window->dwindow != NULL) {
+		rc = display_window_minimize(window->dwindow);
+		if (rc != EOK)
+			goto error;
+	}
+
+	return EOK;
+error:
+	return rc;
 }