最简单的DX窗口程序

一、下载DX装起来：http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=6812

二、创建一个Win32窗口程序，空的，创建一个cpp文件，把项目属性配置一下，主要就是连接的静态库设置一下，要连接的静态库如下
          d3d9.lib    
          d3dcompiler.lib     --HLSL编译器
          DxErr.lib               --错误库
          dxguid.lib          --定义了Direct3D中所需要的GUID，即COM需要引用的
其它的，像DX的动态库、运行库、运行目录，在安装DX SDK的时候就已经设置好了，可以在选项里面看到

三、把下面的代码贴上去，编译运行，OK

#include <Windows.h>
#include <d3d9.h>
#include <d3dx9.h>

IDirect3D9 *g_pD3D;  // D3D对象
IDirect3DDevice9 *g_pd3dDevice;   // D3D设备

LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
void Render();
void Cleanup();

INT WINAPI WinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in_opt LPSTR lpCmdLine, __in int nShowCmd )
{
       // step 1.
       WNDCLASSEX wc = {
              sizeof(WNDCLASSEX),
              CS_CLASSDC,
              MsgProc,
              0L, 0L,
              GetModuleHandle(NULL),
              NULL, NULL, NULL, NULL,
              "Direct3D Frame", NULL };

              RegisterClassEx(&wc);

              HWND hWnd = CreateWindow(
                     "Direct3D Frame",
                     "Direct3D BaseFrame",
                     WS_OVERLAPPEDWINDOW, 100, 100, 300, 300,
                     GetDesktopWindow(), NULL, wc.hInstance, NULL);

              ShowWindow(hWnd, nShowCmd);

              // step 2.
              if (NULL == (g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))
              {
                     return E_FAIL;
              }

              D3DPRESENT_PARAMETERS d3dpp;
              ZeroMemory(&d3dpp, sizeof(d3dpp));
              d3dpp.Windowed = TRUE;
              d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
              d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;

              if (FAILED(g_pD3D->CreateDevice(
                     D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
                     D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                     &d3dpp, &g_pd3dDevice)));

              // step 3.
              MSG msg;
              while (GetMessage(&msg, NULL, 0, 0))
              {
                     TranslateMessage(&msg);
                     DispatchMessage(&msg);
              }
}

LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
       switch (msg)
       {
       case WM_DESTROY:
              Cleanup();
              PostQuitMessage(0);
              return 0;

       case WM_PAINT:
              Render();
              ValidateRect(hWnd, NULL);
              return 0;
       }

       return DefWindowProc(hWnd, msg, wParam, lParam);
}

void Render()
{
       g_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0);

       g_pd3dDevice->BeginScene();
       // rendering of scene objects happens here
       g_pd3dDevice->EndScene();

       g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
}

void Cleanup()
{
       if (g_pd3dDevice != NULL)
              g_pd3dDevice ->Release();
       if (g_pD3D != NULL)
              g_pD3D->Release();
}

熟悉Win32程序开发的一看就知道，在响应WM_PAINT消息的时候换成了调用Render()这个函数，在这个函数里面你就可以用DX"画"自己的东东了<^^>