听说DirectX9.0发布了吗？如果没有，你现在也应该听我说过了，那就去http://download.microsoft.com/download/b/6/a/b6ab32f3-39e8-4096-9445-d38e6675de85/dx90bsdk.exe下载一个最新的DirectX9.0的SDK，因为我将使用D3D9来进行全文的讲解。其实DirectX9.0里有非常详细的教程和参考，大多数人只需要看看这些帮助就可以自己学习D3D了，我的这篇文章适合那些很懒但想快速入门、不懂英文或编程知识很欠缺的人看。装好DirectX9.0后，打开VC.net，新建一个Win32工程，在StdAfx.h里添加下面的语句：
#include <d3d9.h> // D3D标准头文件
#include <D3dx9math.h> // D3D数学库头文件
#include <stdio.h> // 这个不用我说了吧？
#pragma comment( lib, "d3d9" ) // D3D的静态库
#pragma comment( lib, "d3dx9" ) // D3D数学库的静态库
然后把winmain所在文件的代码做如下的修改：
#include "stdafx.h"
#define MAX_LOADSTRING 100
HINSTANCE g_hInst;
HWND g_hWnd;
IDirect3D9 *g_pD3D;
IDirect3DDevice9 *g_pd3dDevice;
IDirect3DVertexBuffer9 *g_pVB;
TCHAR szTitle[MAX_LOADSTRING];
TCHAR szWindowClass[MAX_LOADSTRING];
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
void OnIdle( void );
void OnCreate( HWND hWnd );
HRESULT InitD3D( void );
HRESULT CreateObject( void );
void ReleaseD3D( void );
HRESULT SetModalMatrix( void );
HRESULT SetProjMatrix( WORD wWidth, WORD wHeight );
void BeforePaint( void );
int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
MSG msg;
HACCEL hAccelTable;
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_D3DTEST, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_D3DTEST);
while ( true )
{
if ( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) )
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
continue;
}
if ( WM_QUIT == msg.message )
{
break;
}
OnIdle();
}
UnregisterClass( szWindowClass, g_hInst );
return (int)msg.wParam;
}
ATOM MyRegisterClass( HINSTANCE hInstance )
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_D3DTEST);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCTSTR)IDC_D3DTEST;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
return RegisterClassEx(&wcex);
}
BOOL InitInstance( HINSTANCE hInstance, int nCmdShow )
{
g_hInst = hInstance;
CreateWindow( szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL );
if ( !g_hWnd )
{
return FALSE;
}
ShowWindow( g_hWnd, nCmdShow );
UpdateWindow( g_hWnd );
return TRUE;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
switch (message)
{
case WM_CREATE:
OnCreate( hWnd );
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
switch (wmId)
{
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_SIZE:
SetProjMatrix( LOWORD( lParam ), HIWORD( lParam ) );
break;
case WM_DESTROY:
ReleaseD3D();
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
void OnCreate( HWND hWnd )
