这篇文章主要讲解如何初始化Direct3D。Direct3D初始化成功后，我们将的到一个代表显卡的C++对象(类型：IDrect3DDevice9)。
初始化流程图：
完整代码：
//全局变量IDirect3DDevice9 *device = 0 ;// Step 1: Create the IDirect3D9 object.IDirect3D9* d3d9 = 0;d3d9 = Direct3DCreate9(D3D_SDK_VERSION);if (!d3d9){return false;}// Step 2: Check for hardware vp.D3DCAPS9 caps;d3d9->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps);int vp = 0;if (caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;elsevp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;// Step 3: Fill out the D3DPRESENT_PARAMETERS structure.D3DPRESENT_PARAMETERS d3dpp;d3dpp.BackBufferWidth = 800;d3dpp.BackBufferHeight = 600;d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;d3dpp.BackBufferCount = 1;d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;d3dpp.MultiSampleQuality = 0;d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;d3dpp.hDeviceWindow = hWnd;d3dpp.Windowed = false;d3dpp.EnableAutoDepthStencil = true;d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;d3dpp.Flags = 0;d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;///////////////////////////////// Step 4: Create the device.(device代表的是物理显卡)//////////////////////////////HRESULT hr = d3d9->CreateDevice(D3DADAPTER_DEFAULT, // primary adapterD3DDEVTYPE_HAL, // device typehWnd, // window associated with devicevp, // vertex processing&d3dpp, // present parameters&device); // return created deviceif (FAILED(hr)){d3d9->Release(); // done with d3d9 objectreturn false;}else {::MessageBox(0, L"显卡对象创建成功",0,0);}}d3d9->Release(); // done with d3d9 object可能会遇到的错误：
错误类型：
无法解析的外部符号 Direct3DCreate9@4
解决方案一：
在VS.NET中的项目/属性/配置属性/连接器/输入/附加依赖项中添加以下文件名,d3dx9.lib d3dxof.lib d3d9.lib winmm.lib dxguid.lib comctl32.lib 就可以了.
解决方案二：
#pragma comment(lib,"d3d9.lib") #pragma comment(lib,"winmm.lib") #pragma comment(lib,"d3dx9.lib")
