DirectX基础示例

/* * Author: Leng_que * Date: 2009/08/29 * E-mail: [e-mail] * Description: Draw a triangle by DirectX 9.0 */#include <windows.h>#pragma comment(linker, "/subsystem:windows")#include <d3d9.h>#pragma comment(lib,"d3d9.lib")HRESULT InitVB();HRESULT InitD3D( HWND hWnd );LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW|D3DFVF_DIFFUSE)LPDIRECT3D9 g_pD3D = NULL;LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL;struct CUSTOMVERTEX{ FLOAT x, y, z, rhw; DWORD color;};int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd ){WNDCLASS wndclass;wndclass.cbClsExtra = 0;wndclass.cbWndExtra = 0;wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);wndclass.hInstance = hInstance;wndclass.lpfnWndProc = WndProc;wndclass.lpszClassName = "leng_que";wndclass.lpszMenuName = NULL;wndclass.style = CS_HREDRAW | CS_VREDRAW;RegisterClass( &wndclass );HWND hwnd = CreateWindow(wndclass.lpszClassName,"DirectX",WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);ShowWindow(hwnd,nShowCmd);UpdateWindow(hwnd);MSG msg;while ( GetMessage( &msg, NULL, 0, 0 ) ){TranslateMessage(&msg);DispatchMessage(&msg);}UnregisterClass( wndclass.lpszClassName, wndclass.hInstance );return 0;}LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam){switch(message){case WM_CREATE:InitD3D(hwnd);InitVB();break;case WM_PAINT:g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0 );g_pd3dDevice->BeginScene();g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) );g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 1 );g_pd3dDevice->EndScene();g_pd3dDevice->Present( NULL, NULL, NULL, NULL );break;case WM_SIZE:break;case WM_LBUTTONDOWN:break;case WM_RBUTTONDOWN:break;case WM_DESTROY:if (g_pVB != NULL) g_pVB->Release();if (g_pd3dDevice != NULL) g_pd3dDevice->Release();if (g_pD3D != NULL) g_pD3D->Release();PostQuitMessage(0);break;}return DefWindowProc(hwnd,message,wParam,lParam);}HRESULT InitVB(){ CUSTOMVERTEX Vertices[] = { { 250.0f, 100.0f, 0.5f, 1.0f, RGB(255,0,0) }, { 350.0f, 250.0f, 0.5f, 1.0f, RGB(0,255,0) }, { 150.0f, 250.0f, 0.5f, 1.0f, RGB(0,0,255) }, }; g_pd3dDevice->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&g_pVB,NULL); VOID* pVertices; g_pVB->Lock(0, sizeof(Vertices), (void**)&pVertices, 0); memcpy( pVertices, Vertices, sizeof(Vertices) ); g_pVB->Unlock(); return 0;}HRESULT InitD3D( HWND hWnd ){ g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ); D3DPRESENT_PARAMETERS d3dpp; ZeroMemory(&d3dpp, sizeof(d3dpp)); d3dpp.Windowed = TRUE; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.BackBufferFormat = D3DFMT_UNKNOWN; g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice);return 0;}