//还有一个Date类对D3D中的操作量进行封装
  

  class Data
  

  {
  

  public:
  

  HWND hwnd;
  

  MSG        msg;
  

  

  IDirect3D9*                                d3d9;
  

  IDirect3DDevice9*                    device;
  

  D3DPRESENT_PARAMETERS        d3dpp;
  

  

  void Direct3DInit (int windowW, int windowH);
  

  };
  

  void Data::Direct3DInit (int windowW, int windowH)
  

  {
  

  this->d3d9 = Direct3DCreate9(D3D_SDK_VERSION);
  

  d3dpp.BackBufferWidth                        = windowW;
  

  d3dpp.BackBufferHeight                        = windowH;
  

  d3dpp.BackBufferFormat                        = D3DFMT_A8R8G8B8;
  

  d3dpp.BackBufferCount                        = 1;
  

  d3dpp.MultiSampleType                        = D3DMULTISAMPLE_NONE;
  

  d3dpp.MultiSampleQuality                    = 0;
  

  d3dpp.SwapEffect                                = D3DSWAPEFFECT_DISCARD;
  

  d3dpp.hDeviceWindow                            = this->hwnd;
  

  d3dpp.Windowed                                    = true;                                            // fullscreen
  

  d3dpp.EnableAutoDepthStencil            = true;
  

  d3dpp.AutoDepthStencilFormat            = D3DFMT_D24S8;                        // depth format
  

  d3dpp.Flags                                            = 0;
  

  d3dpp.FullScreen_RefreshRateInHz        = D3DPRESENT_RATE_DEFAULT;
  

  d3dpp.PresentationInterval                    = D3DPRESENT_INTERVAL_IMMEDIATE;
  

  this->d3d9->CreateDevice (
  

  D3DADAPTER_DEFAULT,
  

  D3DDEVTYPE_HAL,
  

  this->hwnd,
  

  D3DCREATE_HARDWARE_VERTEXPROCESSING,
  

  &this->d3dpp,
  

  &this->device  );
  

  }
  

  

  //其他省略
  

  

  //这时Model类
  

  class Model
  

  {
  

  public:
  

  Vertex*                                    vertex;                    //物体顶点
  

  WORD*                                index;                    //物体顶点渲染顺序
  

  IDirect3DVertexBuffer9*        vb;                        //顶点缓冲区
  

  IDirect3DIndexBuffer9*        ib;                            //索引缓冲区
  

  

  Data*                                    data;
  

  

  int        pointNum;            //物体顶点个数
  

  int        sturfaceNum;        //物体三角形面个数
  

  

  inline void modelInit (int pN, int fN);
  

  inline void drawNow ();
  

  

  Model (Data* _data)
  

  {
  

  this->data = _data;
  

  this->vertex = NULL;
  

  this->index = NULL;
  

  this->vb = NULL;
  

  this->ib = NULL;
  

  }
  

  ~Model ()
  

  {
  

  delete [] this->vertex;
  

  delete [] this->index;
  

  this->vertex = NULL;
  

  this->index    = NULL;
  

  }
  

  };
  

  

  inline void Model::modelInit (int pN, int fN)
  

  {
  

  this->pointNum        = pN;
  

  this->sturfaceNum    = fN;
  

  this->vertex                = new Vertex[pN]();
  

  this->index                = new WORD[fN*3]();
  

  this->data->device->CreateVertexBuffer (
  

  pN*sizeof(Vertex),
  

  0,
  

  VertexFVF,
  

  D3DPOOL_MANAGED,
  

  &this->vb,
  

  0  );
  

  

  this->data->device->CreateIndexBuffer (
  

  fN*3*sizeof(WORD),
  

  D3DUSAGE_WRITEONLY,
  

  D3DFMT_INDEX16,
  

  D3DPOOL_MANAGED,
  

  &this->ib,
  

  0  );
  

  }
  

  

  inline void Model::drawNow ()
  

  {
  

  this->data->device->SetStreamSource (0, this->vb, 0, sizeof(Vertex) );
  

  this->data->device->SetIndices (this->ib);
  

  

  this->data->device->DrawIndexedPrimitive (D3DPT_TRIANGLELIST, 0, 0, this->pointNum, 0, this->sturfaceNum);
  

  }
  

  

  //这里开始
  

  Data dl;
  

  Model mo(&dl);
  

  

  int WINAPI WinMain (
  

  HINSTANCE hInstance = 0,
  

  HINSTANCE hPreInstance = 0,
  

  PSTR szCmdLine = 0,
  

  int iCmdShow = 0)
  

  {
  

  //窗口建立省略
  

  

  dl.device->SetRenderState(D3DRS_FILLMODE, D3DFILL_WIREFRAME);
  

  dl.device->SetFVF(VertexFVF);
  

  

  mo.modelInit (4, 2, 0);
  

  

  mo.vb->Lock (0, 0, (void**)&mo.vertex, 0);
  

  mo.vertex[0]=Vertex(-1.0f, 1.0f, 0.0f);
  

  mo.vertex[1]=Vertex(1.0f, 1.0f, 0.0f);
  

  mo.vertex[2]=Vertex(1.0f, -1.0f, 0.0f);
  

  mo.vertex[3]=Vertex(-1.0f, -1.0f, 0.0f);
  

  mo.vb->Unlock();
  

  

  mo.ib->Lock (0, 0, (void**)&mo.index, 0);
  

  mo.index[0]=0;
  

  mo.index[1]=1;
  

  mo.index[2]=2;
  

  mo.index[3]=1;
  

  mo.index[4]=2;
  

  mo.index[5]=3;
  

  mo.ib->Unlock();
  

  

  while (dl.msg.message != WM_QUIT)
  

  {
  

  if (::PeekMessage (&dl.msg, 0, 0, 0, PM_REMOVE) )
  

  {
  

  TranslateMessage (&dl.msg);
  

  DispatchMessage (&dl.msg);
  

  }
  

  else
  

  {
  

  dl.device->Clear (0, 0, dlData::DL_Clear_Type, dlData::DL_Clear_Color, 1.0f, 0);
  

  

  dl.device->BeginScene();
  

  

  mo.drawNow();
  

  

  dl.device->EndScene();
  

  

  dl.device->Present (0, 0, 0, 0);
  

  }
  

  }
  

  

  return dl.msg.wParam;
  

  

  }