diff --git a/.gitignore b/.gitignore
index cd42ee3..7d85c72 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 bin/
 obj/
+*.cbp
+*.depend
+*.layout
diff --git a/App.cpp b/App.cpp
new file mode 100644
index 0000000..a5596e7
--- /dev/null
+++ b/App.cpp
@@ -0,0 +1,10 @@
+#include "App.h"
+
+namespace App
+{
+    /// Application Main Method
+    void Main()
+    {
+        mlog("In App::Main()");
+    }
+}
diff --git a/App.h b/App.h
new file mode 100644
index 0000000..bd65162
--- /dev/null
+++ b/App.h
@@ -0,0 +1,9 @@
+#pragma once
+#include "mini_engine.h"
+
+namespace App
+{
+    /** Entrance of Application.
+    */
+    void Main();
+}
diff --git a/InitManager.cpp b/InitManager.cpp
new file mode 100644
index 0000000..935f5f1
--- /dev/null
+++ b/InitManager.cpp
@@ -0,0 +1,112 @@
+#include "InitManager.h"
+
+InitManager_SDL::InitManager_SDL()
+{
+    if(SDL_Init(SDL_INIT_EVERYTHING)<0)
+    {
+        Global::ErrorQuit("Failed to init SDL2.");
+    }
+}
+
+InitManager_SDL::~InitManager_SDL()
+{
+    SDL_Quit();
+}
+
+InitManager_IMG::InitManager_IMG()
+{
+    if(IMG_Init(IMG_INIT_JPG|IMG_INIT_PNG)<0)
+    {
+        Global::ErrorQuit("Failed to init SDL2 Image.");
+    }
+}
+
+SDL_Surface* InitManager_IMG::loadimage(const char* Filename)
+{
+    return IMG_Load(Filename);
+}
+
+SDL_Texture* InitManager_IMG::loadtexture(SDL_Renderer* rnd,const char* Filename)
+{
+    return IMG_LoadTexture(rnd,Filename);
+}
+
+InitManager_IMG::~InitManager_IMG()
+{
+    IMG_Quit();
+}
+
+int InitManager_TTF::ctm=0;
+
+InitManager_TTF::InitManager_TTF()
+{
+    /// ~_~ check ctm and add it anyway
+    if(ctm++>0)
+    {
+        return;
+    }
+
+    if(TTF_Init()<0)
+    {
+        Global::ErrorQuit("Failed to init SDL2 TTF.");
+    }
+    _font=NULL;
+}
+
+int InitManager_TTF::openFont(const char* FileName,int Size)
+{
+    _font=TTF_OpenFont(FileName,Size);
+    if(_font==NULL) return -1;
+    else return 0;
+}
+
+TTF_Font* InitManager_TTF::font()
+{
+    return _font;
+}
+
+int InitManager_TTF::closeFont()
+{
+    TTF_CloseFont(_font);
+    _font=NULL;
+    return 0;
+}
+
+InitManager_TTF::~InitManager_TTF()
+{
+    /// Close Font anyway.
+    if(_font) closeFont();
+
+    /// ~_~ Firstly ctm=ctm-1, if ctm still > 0, then return ( TTF_Quit Not Executed )
+    if(--ctm>0)
+    {
+        return;
+    }
+
+    TTF_Quit();
+}
+
+InitManager_Mix::InitManager_Mix()
+{
+    if(Mix_Init(MIX_INIT_MP3)<0)
+    {
+        Global::ErrorQuit("Failed to Init Mixer.");
+    }
+
+    if(Mix_OpenAudio(44100, AUDIO_S16SYS, 2, 1024)<0)
+    {
+        Global::ErrorQuit("Failed to OpenAudio");
+    }
+    Mix_AllocateChannels(32);
+}
+
+InitManager_Mix::~InitManager_Mix()
+{
+    Mix_CloseAudio();
+    Mix_Quit();
+}
+
+InitManager_SDL syssdl;
+InitManager_IMG sysimg;
+InitManager_TTF systtf;
+InitManager_Mix sysmix;
diff --git a/InitManager.h b/InitManager.h
new file mode 100644
index 0000000..ca98d37
--- /dev/null
+++ b/InitManager.h
@@ -0,0 +1,44 @@
+#pragma once
+#include "config.h"
+#include <vector>
+
+class InitManager_SDL
+{
+public:
+    InitManager_SDL();
+    ~InitManager_SDL();
+};
+
+class InitManager_TTF
+{
+public:
+    InitManager_TTF();
+    ~InitManager_TTF();
+    int openFont(const char* FileName,int Size);
+    int closeFont();
+    TTF_Font* font();
+private:
+    TTF_Font* _font;
+    static int ctm;
+};
+
+class InitManager_IMG
+{
+public:
+    InitManager_IMG();
+    ~InitManager_IMG();
+    SDL_Surface* loadimage(const char* FileName);
+    SDL_Texture* loadtexture(SDL_Renderer* rnd,const char* Filename);
+};
+class InitManager_Mix
+{
+public:
+    InitManager_Mix();
+    ~InitManager_Mix();
+};
+
+extern InitManager_SDL syssdl;
+extern InitManager_IMG sysimg;
+extern InitManager_TTF systtf;
+extern InitManager_Mix sysmix;
+
diff --git a/WindowManager.cpp b/WindowManager.cpp
new file mode 100644
index 0000000..7c9e505
--- /dev/null
+++ b/WindowManager.cpp
@@ -0,0 +1,83 @@
+#include "WindowManager.h"
+
+WindowManager* default_WindowManager=nullptr;
+
+struct WindowManager::impl
+{
+    SDL_Renderer* rnd;
+    SDL_Window* wnd;
+    int winw,winh;
+};
+
+WindowManager::WindowManager()
+{
+    pimpl=new impl;
+    Init();
+}
+
+WindowManager* WindowManager::getDefaultInstance() /// static
+{
+    if(default_WindowManager) return default_WindowManager;
+    default_WindowManager=new WindowManager;
+    return default_WindowManager;
+}
+int WindowManager::releaseDefaultInstance() /// static
+{
+    if(!default_WindowManager) return -1;
+    delete default_WindowManager;
+    default_WindowManager=nullptr;
+    return 0;
+}
+
+void WindowManager::Init()
+{
+    mlog("Called WindowSizeManager::Init()");
+    if(pimpl->wnd!=NULL) return;
+    pimpl->wnd=SDL_CreateWindow("MiniEngine",SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED,1024,768,SDL_WINDOW_SHOWN);
+    updateSize();
+    pimpl->rnd=SDL_CreateRenderer(pimpl->wnd,-1,SDL_RENDERER_ACCELERATED|SDL_RENDERER_TARGETTEXTURE);
+}
+
+void WindowManager::Quit()
+{
+    mlog("Called WindowSizeManager::Quit()");
+    if(pimpl->rnd==NULL) return;
+
+    SDL_DestroyRenderer(pimpl->rnd);
+    pimpl->rnd=nullptr;
+    SDL_DestroyWindow(pimpl->wnd);
+    pimpl->wnd=nullptr;
+
+    pimpl->winw=pimpl->winh=0;
+}
+
+WindowManager::~WindowManager()
+{
+    Quit();
+    delete pimpl;
+}
+
+int WindowManager::getwinw()
+{
+    return pimpl->winw;
+}
+
+int WindowManager::getwinh()
+{
+    return pimpl->winh;
+}
+
+SDL_Window* WindowManager::getWindow()
+{
+    return pimpl->wnd;
+}
+
+SDL_Renderer* WindowManager::getRender()
+{
+    return pimpl->rnd;
+}
+
+void WindowManager::updateSize()
+{
+    SDL_GetWindowSize(pimpl->wnd,&pimpl->winw,&pimpl->winh);
+}
diff --git a/WindowManager.h b/WindowManager.h
new file mode 100644
index 0000000..dd5af62
--- /dev/null
+++ b/WindowManager.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "config.h"
+
+class WindowManager
+{
+public:
+    WindowManager();
+    ~WindowManager();
+    int getwinw();
+    int getwinh();
+    SDL_Renderer* getRender();
+    SDL_Window* getWindow();
+    void updateSize();
+
+    static WindowManager* getDefaultInstance();
+    static int releaseDefaultInstance();
+protected:
+    void Init();
+    void Quit();
+private:
+    struct impl;
+    impl* pimpl;
+};
diff --git a/basic_config.cpp b/basic_config.cpp
new file mode 100644
index 0000000..7439e16
--- /dev/null
+++ b/basic_config.cpp
@@ -0,0 +1,3 @@
+#include "basic_config.h"
+
+FILE* _log_fp=NULL;
diff --git a/basic_config.h b/basic_config.h
new file mode 100644
index 0000000..314fa86
--- /dev/null
+++ b/basic_config.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+
+/// If you have configured SDL2 header files,
+/// they will be used first.
+
+#include "SDL2/SDL.h"
+#undef main
+
+#include "SDL2/SDL_ttf.h"
+#include "SDL2/SDL_image.h"
+#include "SDL2/SDL_Mixer.h"
+
+class NonCopyable
+{
+public:
+    NonCopyable()=default;
+    ~NonCopyable()=default;
+    NonCopyable(const NonCopyable&)=delete;
+    NonCopyable& operator = (const NonCopyable&)=delete;
+};
+
+extern FILE* _log_fp;
+
+#ifdef _WINDOW_PROGRAM
+#define mlog_init() _log_fp=fopen("mini_engine_log.txt","w")
+#define mlog(fmt,args...) do {if(_log_fp) {fprintf(_log_fp,fmt,##args);fprintf(_log_fp,"\n");fflush(_log_fp);} }while(0)
+#else
+#define mlog_init()
+#define mlog(fmt,args...) printf(fmt,##args);printf("\n")
+#endif
diff --git a/config.cpp b/config.cpp
new file mode 100644
index 0000000..e28b8ab
--- /dev/null
+++ b/config.cpp
@@ -0,0 +1,10 @@
+#include "config.h"
+
+namespace Global
+{
+    void ErrorQuit(const char* ErrorMessage)
+    {
+        mlog(ErrorMessage);
+        exit(0);
+    }
+}
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..5ac9cc3
--- /dev/null
+++ b/config.h
@@ -0,0 +1,8 @@
+#pragma once
+#include "basic_config.h"
+
+#include "sdl_engine.h"
+namespace Global
+{
+    void ErrorQuit(const char* ErrorMessage);
+}
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..df57d2a
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,12 @@
+#include "config.h"
+#include "App.h"
+
+int main()
+{
+    mlog_init();
+    /// Create The Default Window Instance
+    WindowManager::getDefaultInstance();
+    App::Main();
+    WindowManager::releaseDefaultInstance();
+    return 0;
+}
diff --git a/mini_engine.cpp b/mini_engine.cpp
new file mode 100644
index 0000000..d43cc19
--- /dev/null
+++ b/mini_engine.cpp
@@ -0,0 +1 @@
+#include "mini_engine.h"
diff --git a/mini_engine.h b/mini_engine.h
new file mode 100644
index 0000000..0efecbd
--- /dev/null
+++ b/mini_engine.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "config.h"
+
+/******************************************************************************/
+/// InitManager
+#include "InitManager.h"
+
+/// Window Manager
+#include "WindowManager.h"
+
+/******************************************************************************/
+/// Application
+#include "App.h"
diff --git a/sdl_engine.cpp b/sdl_engine.cpp
new file mode 100644
index 0000000..77e1f4d
--- /dev/null
+++ b/sdl_engine.cpp
@@ -0,0 +1,73 @@
+#include "sdl_engine.h"
+#include "unistd.h"
+
+SDL_Texture* RenderText(SDL_Renderer* rnd,TTF_Font* font,const char* Text,SDL_Color color,int* pw,int* ph)
+{
+    SDL_Surface* surf=TTF_RenderText_Blended(font,Text,color);
+    if(surf==NULL) return NULL;
+    SDL_Texture* texture=SDL_CreateTextureFromSurface(rnd,surf);
+    SDL_FreeSurface(surf);
+    if(pw&&ph) SDL_QueryTexture(texture,NULL,NULL,pw,ph);
+    return texture;
+}
+
+SDL_Texture* RenderUTF8(SDL_Renderer* rnd,TTF_Font* font,const char* Text,SDL_Color color,int* pw,int* ph)
+{
+    SDL_Surface* surf=TTF_RenderUTF8_Blended(font,Text,color);
+    if(surf==NULL) return NULL;
+    SDL_Texture* texture=SDL_CreateTextureFromSurface(rnd,surf);
+    SDL_FreeSurface(surf);
+    if(pw&&ph) SDL_QueryTexture(texture,NULL,NULL,pw,ph);
+    return texture;
+}
+
+void TextureDraw(SDL_Renderer* rnd,SDL_Texture* texture,int dstx,int dsty)
+{
+    if(!rnd||!texture) return;
+    int w,h;
+    SDL_QueryTexture(texture,NULL,NULL,&w,&h);
+    SDL_Rect rect;
+    rect.x=dstx;
+    rect.y=dsty;
+    rect.w=w;
+    rect.h=h;
+    SDL_RenderCopy(rnd,texture,NULL,&rect);
+}
+
+SDL_Texture* MyLoadImage(SDL_Renderer* rnd,const char* FileName,int* pw,int* ph)
+{
+    SDL_Surface* surf=IMG_Load(FileName);
+    if(surf==NULL) return NULL;
+    SDL_Texture* texture=SDL_CreateTextureFromSurface(rnd,surf);
+    SDL_FreeSurface(surf);
+    if(texture==NULL) return NULL;
+    if(pw&&ph) SDL_QueryTexture(texture,NULL,NULL,pw,ph);
+    return texture;
+}
+
+bool isInRect(int x,int y,SDL_Rect rect)
+{
+    return ((x>=rect.x&&x<=rect.x+rect.w)&&(y>=rect.y&&y<=rect.y+rect.h));
+}
+
+bool isInRect(int x,int y,int LU_x,int LU_y,int RD_x,int RD_y)
+{
+    return ((x>=LU_x&&x<=RD_x)&&(y>=LU_y&&y<=RD_y));
+}
+
+void ClearMessageQueue()
+{
+    /// Clear Message Queue
+    while(SDL_PeepEvents(NULL,1,SDL_GETEVENT,SDL_FIRSTEVENT,SDL_LASTEVENT));
+}
+
+SDL_Color color_white { 255,255,255 };
+SDL_Color color_black { 0,0,0 };
+
+int MyChangeDir(const char* DirName)
+{
+    mlog("Change Dir to \"%s\"",DirName);
+    int ret=chdir(DirName);
+    mlog("Change Dir returns %d",ret);
+    return ret;
+}
diff --git a/sdl_engine.h b/sdl_engine.h
new file mode 100644
index 0000000..b8aecf3
--- /dev/null
+++ b/sdl_engine.h
@@ -0,0 +1,15 @@
+#pragma once
+#include "basic_config.h"
+
+SDL_Texture* RenderText(SDL_Renderer* rnd,TTF_Font* font,const char* Text,SDL_Color color,int* pw,int* ph);
+SDL_Texture* RenderUTF8(SDL_Renderer* rnd,TTF_Font* font,const char* Text,SDL_Color color,int* pw,int* ph);
+void TextureDraw(SDL_Renderer* rnd,SDL_Texture* texture,int dstx,int dsty);
+SDL_Texture* MyLoadImage(SDL_Renderer* rnd,const char* FileName,int* pw,int* ph);
+bool isInRect(int x,int y,SDL_Rect rect);
+bool isInRect(int x,int y,int LU_x,int LU_y,int RD_x,int RD_y);
+void ClearMessageQueue();
+
+int MyChangeDir(const char* DirName);
+
+extern SDL_Color color_white;
+extern SDL_Color color_black;