diff --git a/src/dlangui/platforms/x11/x11app.d b/src/dlangui/platforms/x11/x11app.d
index 0dfc01cb..92c97033 100644
--- a/src/dlangui/platforms/x11/x11app.d
+++ b/src/dlangui/platforms/x11/x11app.d
@@ -4,70 +4,73 @@ import std.stdio;
 import std.c.linux.X11.xcb.xcb;
 import std.c.linux.X11.xcb.xproto;
 import std.c.stdlib;
-int main()
+
+int main(string[] args)
 {
-  xcb_connection_t    *c;
-  xcb_screen_t        *s;
-  xcb_window_t         w;
-  xcb_gcontext_t       g;
-  xcb_generic_event_t *e;
-  uint             	   mask;
-  uint                 values[2];
-  int                  done = 0;
-  static xcb_rectangle_t      r = { 20, 20, 60, 60 };
+	xcb_connection_t    *c;
+	xcb_screen_t        *s;
+	xcb_window_t         w;
+	xcb_gcontext_t       g;
+	xcb_generic_event_t *e;
+	uint             	   mask;
+	uint                 values[2];
+	int                  done = 0;
+	static xcb_rectangle_t      r = { 20, 20, 60, 60 };
 
-                       /* open connection with the server */
-  c = xcb_connect(null,null);
-  if (xcb_connection_has_error(c)) {
-    writefln("Cannot open display");
-    return 1;
-  }
-                       /* get the first screen */
-  s = xcb_setup_roots_iterator( xcb_get_setup(c) ).data;
+    /* open connection with the server */
+    c = xcb_connect(null,null);
+    if (xcb_connection_has_error(c)) {
+        writefln("Cannot open display");
+        return 1;
+    }
+	
+    /* get the first screen */
+  	s = xcb_setup_roots_iterator( xcb_get_setup(c) ).data;
 
-                       /* create black graphics context */
-  g = xcb_generate_id(c);
-  w = s.root;
-  mask = XCB_GC_FOREGROUND | XCB_GC_GRAPHICS_EXPOSURES;
-  values[0] = s.black_pixel;
-  values[1] = 0;
-  xcb_create_gc(c, g, w, mask, &values[0]);
+    /* create black graphics context */
+	g = xcb_generate_id(c);
+	w = s.root;
+	mask = XCB_GC_FOREGROUND | XCB_GC_GRAPHICS_EXPOSURES;
+	values[0] = s.black_pixel;
+	values[1] = 0;
+	xcb_create_gc(c, g, w, mask, &values[0]);
 
-                       /* create window */
-  w = xcb_generate_id(c);
-  mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
-  values[0] = s.white_pixel;
-  values[1] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS;
-  xcb_create_window(c, s.root_depth, w, s.root,
-                  10, 10, 100, 100, 1,
-                  XCB_WINDOW_CLASS_INPUT_OUTPUT, s.root_visual,
-                  mask, &values[0]);
+    /* create window */
+	w = xcb_generate_id(c);
+	mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
+	values[0] = s.white_pixel;
+	values[1] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS;
+	xcb_create_window(c, s.root_depth, w, s.root,
+          10, 10, 100, 100, 1,
+          XCB_WINDOW_CLASS_INPUT_OUTPUT, s.root_visual,
+          mask, &values[0]);
 
-                       /* map (show) the window */
-  xcb_map_window(c, w);
+    /* map (show) the window */
+  	xcb_map_window(c, w);
   
-  xcb_flush(c);
+  	xcb_flush(c);
 
-                       /* event loop */
-                       
-  do{
-  	e = xcb_wait_for_event(c);
-  	if(!e)break;
-    switch (e.response_type & ~0x80) {
-    case XCB_EXPOSE:    /* draw or redraw the window */
-      xcb_poly_fill_rectangle(c, w, g,  1, &r);
-      xcb_flush(c);
-      break;
-    case XCB_KEY_PRESS:  /* exit on key press */
-      done = 1;
-      break;
+    /* event loop */
+  	do {
+		
+  		e = xcb_wait_for_event(c);
+  		if (!e)
+			break;
+    	switch (e.response_type & ~0x80) {
+    		case XCB_EXPOSE:    /* draw or redraw the window */
+      			xcb_poly_fill_rectangle(c, w, g,  1, &r);
+      			xcb_flush(c);
+      		break;
+    		case XCB_KEY_PRESS:  /* exit on key press */
+      			done = 1;
+      			break;
 			default:
 				break;
-      }
-    free(e);
-  }while(!done);
+      	}
+    	free(e);
+  	} while(!done);
                        /* close connection to server */
-  xcb_disconnect(c);
+  	xcb_disconnect(c);
 
-  return 0;
+  	return 0;
 }