diff --git a/Gtk4/src/FileWindow.h b/Gtk4/src/FileWindow.h
index 0106042..2881f6c 100644
--- a/Gtk4/src/FileWindow.h
+++ b/Gtk4/src/FileWindow.h
@@ -1,10 +1,7 @@
-#ifndef __FILE_WINDOW_H_
-#define __FILE_WINDOW_H_
+#pragma once
 
 #include <gtk/gtk.h>
 
 G_DECLARE_FINAL_TYPE(FileWindow,file_window,FILE,WINDOW,GtkWindow)
 
 FileWindow * file_window_new(GtkWindow * parent);
-
-#endif
diff --git a/Gtk4/src/MainWin.cpp b/Gtk4/src/MainWin.cpp
index c70d901..8045d2e 100644
--- a/Gtk4/src/MainWin.cpp
+++ b/Gtk4/src/MainWin.cpp
@@ -170,6 +170,11 @@ static void gesture_pressed(GtkGestureClick *self,int n_press,double x,double y,
     gtk_popover_popup(GTK_POPOVER(win->popover));
 }
 
+GtkWidget * main_win_get_background(MainWin * win){
+    //Get Background widget, for window size config.
+    return win->background;
+}
+
 static GActionEntry entries[] = {
     {"back",background_dialog,NULL,NULL,NULL},
     {"default1",default_background1,NULL,NULL,NULL},
@@ -190,7 +195,6 @@ static void main_win_init(MainWin * win){
 
     //Initailze Window
     gtk_window_set_icon_name(GTK_WINDOW(win),"My_GtkUI");
-    gtk_window_set_default_size(GTK_WINDOW(win),win->width,win->height);
     gtk_window_set_title(GTK_WINDOW(win),"My GtkUI (Gtk4 Version)");
 
     //Add Actions
@@ -199,6 +203,7 @@ static void main_win_init(MainWin * win){
     //Add Overlay and background widget
     win->overlay = gtk_overlay_new();
     win->background = gtk_picture_new();
+    gtk_widget_set_size_request(win->background,win->width,win->height);
     gtk_overlay_set_child(GTK_OVERLAY(win->overlay),win->background);
     default_background1(NULL,NULL,win);
 
diff --git a/Gtk4/src/MainWin.h b/Gtk4/src/MainWin.h
index f830755..e801262 100644
--- a/Gtk4/src/MainWin.h
+++ b/Gtk4/src/MainWin.h
@@ -6,4 +6,6 @@ G_DECLARE_FINAL_TYPE(MainWin,main_win,MAIN,WIN,GtkApplicationWindow)
 
 MainWin * main_win_new(GtkApplication *app);
 
+GtkWidget * main_win_get_background(MainWin * win);
+
 void btnabout_clicked(GtkWidget * widget,gpointer data);
diff --git a/Gtk4/src/drawing.cpp b/Gtk4/src/drawing.cpp
index 777a04b..d2ec0e0 100644
--- a/Gtk4/src/drawing.cpp
+++ b/Gtk4/src/drawing.cpp
@@ -7,9 +7,10 @@ typedef struct {
     double y;
 }MousePos;
 
-static cairo_surface_t *surface=cairo_image_surface_create(CAIRO_FORMAT_ARGB32,640,360);
-
-//static double start_x,start_y;
+struct _DrawingApp{
+    cairo_surface_t * cairo_surface;
+    MousePos pos;
+};
 
 static void clear_surface (void)
 {
@@ -27,7 +28,8 @@ static void clear_surface (void)
 static void resize_cb(GtkWidget *widget,int width,int height,gpointer data){
     cairo_surface_destroy (surface);
     cairo_surface_create_similar(surface,CAIRO_CONTENT_COLOR,width,height);
-}*/
+}
+*/
 
 static gboolean draw_cb(GtkWidget *widget,cairo_t *cr,gpointer data){
     cairo_set_source_surface(cr,surface,0,0);
diff --git a/Gtk4/src/drawing.h b/Gtk4/src/drawing.h
index 9f33f95..46ecbd1 100644
--- a/Gtk4/src/drawing.h
+++ b/Gtk4/src/drawing.h
@@ -1,8 +1,5 @@
-#ifndef __DRAWING_H_
-#define __DRAWING_H_
+#pragma once
 
 #include <gtk/gtk.h>
 
-void drawing_main(GtkWidget *widget,GtkWindow *parent);
-
-#endif
+//void drawing_main(GtkWidget *widget,GtkWindow *parent);
diff --git a/Gtk4/src/winconf.cpp b/Gtk4/src/winconf.cpp
index c3fdd49..feae8c5 100644
--- a/Gtk4/src/winconf.cpp
+++ b/Gtk4/src/winconf.cpp
@@ -1,5 +1,6 @@
 #include <cstdio>
 #include "winconf.h"
+#include "MainWin.h"
 
 struct _ConfDlg{
     GtkDialog parent_instance;
@@ -15,7 +16,7 @@ static void conf_dlg_response(GtkDialog * dialog,int response){
         width=gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(CONF_DLG(dialog)->width_spin));
         height=gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(CONF_DLG(dialog)->height_spin));
         freopen("winsize.conf","w",stdout);
-        g_print("width=%d\nheight=%d",width,height);
+        g_print("width=%d\nheight=%d\n",width,height);
         fclose(stdout);
     }
     gtk_window_destroy(GTK_WINDOW(dialog));
@@ -33,8 +34,9 @@ static void get_winsize(GtkWidget *widget,ConfDlg * dialog){
     //Get main window
     window = gtk_window_get_transient_for(GTK_WINDOW(dialog));
     //Get Window Size
-    width = gtk_widget_get_size(GTK_WIDGET(window),GTK_ORIENTATION_HORIZONTAL);
-    height = gtk_widget_get_size(GTK_WIDGET(window),GTK_ORIENTATION_VERTICAL);
+    GtkWidget * back = main_win_get_background(MAIN_WIN(window));
+    width = gtk_widget_get_size(back,GTK_ORIENTATION_HORIZONTAL);
+    height = gtk_widget_get_size(back,GTK_ORIENTATION_VERTICAL);
     //Set Value of spin buttons
     gtk_spin_button_set_value(GTK_SPIN_BUTTON(dialog->width_spin),width);
     gtk_spin_button_set_value(GTK_SPIN_BUTTON(dialog->height_spin),height);
@@ -80,6 +82,12 @@ static void conf_dlg_init(ConfDlg * self){
     btn_default = gtk_button_new_with_label("Reset to Default Size");
     btn_getsize = gtk_button_new_with_label("Get Current Size");
 
+    //Get Current Config
+    int width,height;
+    get_config(&width,&height);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(self->width_spin),width);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(self->height_spin),height);
+
     //Width
     gtk_box_append(GTK_BOX(box_width),label_width);
     gtk_box_append(GTK_BOX(box_width),self->width_spin);