diff --git a/image/background.png b/image/background.png
deleted file mode 100644
index 6f04f51..0000000
Binary files a/image/background.png and /dev/null differ
diff --git a/main/main.cpp b/main/main.cpp
index 5e23b47..97583c4 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -1,19 +1,19 @@
-#pragma comment(lib, "fltk.lib")
-#pragma comment(lib, "wsock32.lib")
-#pragma comment(lib, "comctl32.lib")
-#pragma comment(linker, "/NODEFAULTLIB:LIBCMTD.lib")
-
 
 #include <iostream>
 #include <Fl/Fl.H>
 #include <FL/Fl_Box.H>
 #include <FL/Fl_Window.H>
-#include <FL/Fl_PNG_Image.H>
+#include <FL/fl_draw.H>
 
 
-#define window_size 400
+
+#define window_height 600
+#define window_width 800
+
 /*****************************************************************************/
 /* This class provides a view to copy the offscreen surface to */
+
+int color_map[window_width][window_height];
 class My_Window : public Fl_Window{
     int x,y,button;
     int handle(int e)
@@ -28,25 +28,42 @@ class My_Window : public Fl_Window{
                 return 1;
             case FL_KEYBOARD:
                 button = Fl::event_button();
-                std::cout<<"Keyboard:"<< button <<std::endl;
+                std::cout<<"Keyboard:"<< (unsigned short)button <<std::endl;
                 return 1;
         }
+
     }
+
 public:
     My_Window(int x, int y, const char *l ) : Fl_Window(x,y,l){};
 };
 
+class Pixel : public Fl_Widget {
+    Fl_Color color;
+    void draw(){
+        fl_draw_box(static_cast<Fl_Boxtype>(1), x(), y(), w(), h(), color);
+    }
+
+public:
+    Pixel(int x,int y,int w,int h,int RGB) :
+            Fl_Widget(x,y,w,h,0) {
+        this->color = fl_rgb_color((uchar)((RGB&0xff000000)>>24),(uchar)((RGB&0xff0000)>>16),(uchar)((RGB&0xff00)>>8));
+    }
+};
+
 int main(int argc, char **argv) {
-
-    int x, y, button;
-    My_Window* window = new My_Window(window_size, window_size, "example");
-    Fl_Box* box = new Fl_Box(10,10,380,380);
-
+    for(int i=0;i<100;i++){
+        for (int j = 0; j < 100 ; j++) {
+            color_map[i][j]=0xff000000;
+        }
+    }
+    My_Window* window = new My_Window(window_width, window_height, "example");
     window->begin();
-    Fl_PNG_Image* background = new Fl_PNG_Image("../image/background.png");
-    std::cout<<background->Fl_Image::fail()<<std::endl;
-    box->image(background);
-    box->redraw();
+    for(int i=0;i<100;i++){
+        for (int j = 0; j < 100 ; j++) {
+            new Pixel(i,j,1,1,color_map[i][j]);
+        }
+    }
     window->end();
     window->show(argc,argv);
     return Fl::run();