3 files changed, 21 insertions, 9 deletions
diff --git a/source/modules/asura-core/wnd/window.h b/source/modules/asura-core/wnd/window.h
index 1ecb934..eb8a574 100644
--- a/source/modules/asura-core/wnd/window.h
+++ b/source/modules/asura-core/wnd/window.h
@@ -134,8 +134,8 @@ namespace AsuraEngine
 			virtual void SetPosition(int x, int y) = 0;
 			virtual void SetTitils(const std::string& title) = 0;
 
-			virtual void Show(); 
-			virtual void Hide();
+			virtual void Show() = 0; 
+			virtual void Hide() = 0;
 
 			virtual void SwapRenderBuffer() = 0;
 
diff --git a/source/modules/asura-core/wnd/window_impl_sdl.cpp b/source/modules/asura-core/wnd/window_impl_sdl.cpp
index bbbef9a..e608b8b 100644
--- a/source/modules/asura-core/wnd/window_impl_sdl.cpp
+++ b/source/modules/asura-core/wnd/window_impl_sdl.cpp
@@ -1,3 +1,7 @@
+#include "../core_config.h"
+
+#if ASURA_WINDOW_SDL
+
 #include <SDL2/SDL.h>
 
 #include <asura-utils/exceptions/exception.h>
@@ -138,4 +142,6 @@ namespace AsuraEngine
 		}
 
 	}
-}
-\ No newline at end of file
+}
+
+#endif // ASURA_WINDOW_SDL
+\ No newline at end of file
diff --git a/source/modules/asura-core/wnd/window_impl_sdl.h b/source/modules/asura-core/wnd/window_impl_sdl.h
index 03e6579..0e81c0a 100644
--- a/source/modules/asura-core/wnd/window_impl_sdl.h
+++ b/source/modules/asura-core/wnd/window_impl_sdl.h
@@ -1,6 +1,10 @@
 #ifndef __ASURA_WINDOW_SDL_H_
 #define __ASURA_WINDOW_SDL_H_
 
+#include "../core_config.h"
+
+#if ASURA_WINDOW_SDL
+
 #include <SDL2/SDL.h>
 
 #include "window.h"
@@ -17,14 +21,14 @@ namespace AsuraEngine
 			WindowImplSDL(const WindowConfig& config);
 			~WindowImplSDL();
 
-			void SetSize(uint width, uint height);
-			void SetPosition(int x, int y);
-			void SetTitils(const std::string& title);
+			void SetSize(uint width, uint height) override;
+			void SetPosition(int x, int y) override;
+			void SetTitils(const std::string& title) override;
 
-			void Show();
-			void Hide();
+			void Show() override;
+			void Hide() override;
 
-			void SwapRenderBuffer();
+			void SwapRenderBuffer() override;
 
 		private: 
 
@@ -36,4 +40,6 @@ namespace AsuraEngine
 	}
 }
 
+#endif // ASURA_WINDOW_SDL
+
 #endif
 \ No newline at end of file