DirectX入门之初始化Direct3D及常见问题

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;
else
vp = 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 adapter
D3DDEVTYPE_HAL,         // device type
hWnd,               // window associated with device
vp,                 // vertex processing
&d3dpp,             // present parameters
&device);            // return created device

if (FAILED(hr))
{
d3d9->Release(); // done with d3d9 object
return 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：

无法解析的外部符号 Direct3DCreate9@4

#pragma comment(lib,"d3d9.lib")
#pragma comment(lib,"winmm.lib")
#pragma comment(lib,"d3dx9.lib")