【Visual C++】游戏开发笔记二十六 DirectX 11各组件的介绍&第一个DirectX 11 Demo的创建

#include<Windows.h>
 
//函数声明
LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
 
 
//****wWinMain函数，程序入口点函数**************************************
int WINAPI wWinMain( HINSTANCE hInstance, HINSTANCE prevInstance, LPWSTR cmdLine,int cmdShow )
{
    UNREFERENCED_PARAMETER( prevInstance );
    UNREFERENCED_PARAMETER( cmdLine );
      
    WNDCLASSEX wndClass = { 0 };
    wndClass.cbSize = sizeof( WNDCLASSEX ) ;
    wndClass.style = CS_HREDRAW | CS_VREDRAW;
    wndClass.lpfnWndProc = WndProc;
    wndClass.hInstance = hInstance;
    wndClass.hCursor = LoadCursor( NULL, IDC_ARROW);
    wndClass.hbrBackground = ( HBRUSH )(COLOR_WINDOW + 1 );
    wndClass.lpszMenuName = NULL;
    wndClass.lpszClassName =L"DIRECTX11BookWindowClass";
      
    if( !RegisterClassEx( &wndClass ) )
        return -1;
      
    RECT rc = { 0, 0, 640, 480 };
    AdjustWindowRect( &rc,WS_OVERLAPPEDWINDOW, FALSE );
      
    HWND hwnd = CreateWindow( L"DIRECTX11BookWindowClass",L"Blank Win32 Window",
        WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,CW_USEDEFAULT, rc.right - rc.left,
        rc.bottom - rc.top, NULL, NULL,hInstance, NULL );
      
    if( !hwnd )
        return -1;
      
    ShowWindow( hwnd, cmdShow );
      
 
 
    // 初始化
    MSG msg = { 0 };
      
    while( msg.message != WM_QUIT )
    {
        if( PeekMessage( &msg, 0, 0, 0,PM_REMOVE ) )
        {
            TranslateMessage( &msg );
            DispatchMessage( &msg );
        }
        else
        {
            // 进行更新
            // 进行绘图操作
        }
    }
      
    // 收尾工作
      
    return static_cast<int>( msg.wParam);
}
 
 
 
 
//****消息处理函数*********************************** 
LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
    PAINTSTRUCT paintStruct;
    HDC hDC;
      
    switch( message )
    {
       case WM_PAINT:
              hDC = BeginPaint( hwnd,&paintStruct );
              EndPaint( hwnd, &paintStruct);
              break;
             
       case WM_DESTROY:
              PostQuitMessage( 0 );
              break;
             
       default:
              return DefWindowProc( hwnd,message, wParam, lParam );
    }
      
    return 0;
}