add d3d9 project structure

GDP/D3D9/Window.cpp

@@ -0,0 +1,27 @@
+#include "Window.h"
+
+INT Window::init(HINSTANCE hInstance, UINT width, UINT height)
+{
+    // 1. describe window class
+    
+    // 2. register window class
+    
+    // 3. adjust window size (optional)
+    
+    // 4. create window instance
+    
+    // 5. show window
+    
+    return 0;
+}
+
+BOOL Window::run()
+{
+    // 6. run window
+    
+    return 0;
+}
+
+void Window::deInit()
+{
+}