still footbar can not draw

main.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+
+	"os"
+	"fmt"
+	
+	"github.com/veandco/go-sdl2/sdl"
+	
+	"github.com/cuu/gogame/display"
+	"github.com/cuu/gogame/event"
+//	"github.com/cuu/gogame/color"
+	"github.com/cuu/gogame/font"
+	"github.com/cuu/gogame/time"
+	
+	"./sysgo/UI"
+)
+
+
+func run() int {	
+	display.Init()
+	font.Init()
+	screen := display.SetMode(int32(UI.Width),int32(UI.Height),0,32)
+
+	UI.MyIconPool.Init()
+
+	main_screen := UI.NewMainScreen()
+	main_screen.HWND = screen
+	main_screen.Init()
+		
+	title_bar := UI.NewTitleBar()
+	foot_bar := UI.NewFootBar()
+
+	title_bar.Init(main_screen)
+	foot_bar.Init(main_screen)
+	
+	main_screen.TitleBar = title_bar
+	main_screen.FootBar  = foot_bar
+
+	main_screen.ReadTheDirIntoPages("Menu",0,nil)
+	main_screen.FartherPages()
+
+	main_screen.Draw()
+	main_screen.SwapAndShow()
+
+	UI.SwapAndShow()
+	
+	fmt.Println(main_screen)
+	
+	running := true
+	for running {
+		ev := event.Wait()
+		if ev.Type == event.QUIT {
+			running = false
+			break
+		}
+		if ev.Type == event.USEREVENT {
+			
+			fmt.Println(ev.Data["Msg"])
+		}
+		if ev.Type == event.KEYDOWN {
+			fmt.Println(ev)
+			if ev.Data["Key"] == "Q" {
+				return 0
+			}
+			if ev.Data["Key"] == "Escape" {
+				return 0
+			}
+			if ev.Data["Key"] == "T" {
+				time.Delay(1000)
+			}
+			if ev.Data["Key"] == "P" {				
+				event.Post(event.RUNEVT,"GODEBUG=cgocheck=0 sucks") // just id and string, simpify the stuff
+			}
+		}
+	}
+
+	return 0
+}
+
+func main() {
+	
+	var exitcode int
+
+	os.Setenv("SDL_VIDEO_CENTERED","1")
+	
+	sdl.Main(func() {
+		exitcode = run()
+	})
+
+	os.Exit(exitcode)
+}