//---------------------------------------------------------------------------
#include <windows.h>
#include <ddraw.h>
#include <io.h>
#include <fcntl.h>
#include <sys/stat.h>
#pragma hdrstop

//---------------------------------------------------------------------------

#pragma argsused

#define GAMENAME    "DirectDraw 7 窗口示例"
#define ScreenWidth 640
#define ScreenHigh  480
#define ScreenColor 32
#define WINDOWSTYLE WS_VISIBLE|WS_THICKFRAME|WS_SYSMENU|WS_MINIMIZEBOX

IDirectDraw         *_DirectDraw=NULL;
IDirectDraw7        *DirectDraw;
IDirectDrawSurface7 *PrimarySurface;
DDSURFACEDESC2      ddsd;

bool InitDirectDraw(HWND hwnd)
{
    if(DirectDrawCreate(NULL,&_DirectDraw,NULL)!=DD_OK)return(false);
    if(_DirectDraw->QueryInterface(IID_IDirectDraw7,(void **)&DirectDraw)!=DD_OK)
    {
        _DirectDraw->Release();
        return(false);
    }

    if(DirectDraw->SetCooperativeLevel(hwnd,DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN)!=DD_OK)
    {
        DirectDraw->Release();
        _DirectDraw->Release();
        return(false);
    }

    if(DirectDraw->SetDisplayMode(ScreenWidth,ScreenHigh,ScreenColor,0,0)!=DD_OK)
    {
        DirectDraw->Release();
        _DirectDraw->Release();
        return(false);
    }

    memset(&ddsd,0,sizeof(DDSURFACEDESC2));

    ddsd.dwSize             =sizeof(DDSURFACEDESC2);
    ddsd.dwFlags            =DDSD_CAPS;
    ddsd.ddsCaps.dwCaps     =DDSCAPS_PRIMARYSURFACE;

    if(DirectDraw->CreateSurface(&ddsd,&PrimarySurface,NULL)!=DD_OK)
    {
        DirectDraw->Release();
        _DirectDraw->Release();
        return(false);
    }

    return(true);
}

void CloseDirectDraw()
{
    PrimarySurface->Release();
    DirectDraw->Release();
    _DirectDraw->Release();
}

HWND InitWindow(HINSTANCE hinstance)
{
    HWND hwnd;
    WNDCLASSEX wc;

    wc.cbSize=sizeof(WNDCLASSEX);
    wc.style=0;
    wc.lpfnWndProc=(WNDPROC)DefWindowProc;
    wc.cbClsExtra=0;
    wc.cbWndExtra=0;
    wc.hInstance=hinstance;
    wc.hIcon=LoadIcon(NULL,NULL);
    wc.hCursor=LoadCursor(NULL,IDC_ARROW);
    wc.hbrBackground=(HBRUSH)COLOR_BACKGROUND;
    wc.lpszMenuName=0;
    wc.lpszClassName="绝情创作群";
    wc.hIconSm=LoadIcon(hinstance,IDI_APPLICATION);

    RegisterClassEx(&wc);
    hwnd=CreateWindowEx(NULL,"绝情创作群",GAMENAME,WINDOWSTYLE,0,0,ScreenWidth,ScreenHigh,0,0,hinstance,0);

    ShowWindow(hwnd,SW_SHOWNORMAL);
    UpdateWindow(hwnd);

    return(hwnd);
}

WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    HWND hwnd;

    hwnd=InitWindow(hInstance);
    InitDirectDraw(hwnd);

    //.............

    CloseDirectDraw();
    return(0);
}
//---------------------------------------------------------------------------