CString strFilename,str;

CFileDialog openBox(TRUE,NULL,_T(""),OFN_HIDEREADONLY,_T("bmp(*.bmp)|*.bmp|ALLFiles(*.*)|*.*||"),NULL);

openBox.m_ofn.lpstrTitle=_T("打开数据文件640*480_bmp");

INT_PTR nResult = openBox.DoModal();

// 如果文件打开则准备播放

if (nResult == IDOK)

{

strFilename=openBox.GetPathName();

}

else

{

return;

}

strFilename.ReleaseBuffer();

str =strFilename;

m_hBitmap = (HBITMAP)::LoadImage(NULL,str,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); //装载位图

if(m_bitmap.m_hObject)

m_bitmap.DeleteObject();

m_bitmap.Attach(m_hBitmap);//将句柄与CBitmap关联起来

m_bitmap.GetBitmap(&bm);

int height = bm.bmHeight;//图像的宽高

int width = bm.bmWidth;

int widthBytes=bm.bmWidthBytes;//图像一行数据所占的字节数

int size=height*widthBytes;

buf[i]=new BYTE[size];

m_bitmap.GetBitmapBits(size,buf[i]);//得到RGB数据

}

}

#include

#pragma comment (lib,"ddraw.lib")

#pragma comment (lib,"dxguid.lib")

LPDIRECTDRAW lpdd=NULL;

LPDIRECTDRAW7 lpdd7=NULL;

LPDIRECTDRAWSURFACE7 lpddsback;

LPDIRECTDRAWSURFACE7 lpddsprimary=NULL;

LPDIRECTDRAWSURFACE7 lpddsmypage[6];

LPDIRECTDRAWPALETTE lpddpal=NULL;

DDSURFACEDESC2 ddsd;

LPDIRECTDRAWCLIPPER lpDDClipper = NULL;

//

#define _RGB32BIT(a,r,g,b) ((b) + ((g) << 8) + ((r) << 16) + ((a) << 24))

//#define SCREEN_WIDTH 640

//#define SCREEN_HEIGHT 480

RECT rcRectSrc;

RECT rcRectDest;

int index_y = 0, index_x = 0;

int height,width,widthBytes;

int R, G, B;

int SCREEN_WIDTH,SCREEN_HEIGHT;

HWND main_window_handle;

void CshowpicDlg::OnBnClickedButton2()

{

// TODO: 在此添加控件通知处理程序代码

height=width=widthBytes=0;

main_window_handle = m_screen.GetSafeHwnd();

if(DD_OK!=(DirectDrawCreate(NULL, &lpdd, NULL)))

{

return ;

}

//获取DIRECTDRAW7 接口

if(DD_OK != (lpdd->QueryInterface(IID_IDirectDraw7,(LPVOID*)&lpdd7)))

{

return ;

}

// set the cooperative level for full-screen mode

if(DD_OK != lpdd7->SetCooperativeLevel(main_window_handle, DDSCL_NORMAL))

{

return ;

}

// set the display mode to 640x480x256

#if 0 //设置分辨率

if(DD_OK!=(lpdd7->SetDisplayMode(800,600,32,0,0)))

{

AfxMessageBox("dsf");

return ;

}

#endif

// clear ddsd and set size

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

ddsd.dwSize = sizeof(ddsd);

// enable valid fields

ddsd.dwFlags=DDSD_CAPS;

ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

// create the primary surface

/*

ddsd.ddsCaps.dwCaps=DDSCAPS_BACKBUFFER;

if (FAILED(lpddsprimary->GetAttachedSurface(&ddsd.ddsCaps,&lpddsback)))

{

return -1;

}

*/

if(DD_OK!=(lpdd7->CreateSurface(&ddsd, &lpddsprimary, NULL)))

{

return ;

}

// 创建裁剪器

if (FAILED(lpdd7->CreateClipper(0, &lpDDClipper, NULL)))

return ;

// 与窗口工作区关联

if (FAILED(lpDDClipper->SetHWnd(0, main_window_handle)))

{

lpDDClipper->Release();

return ;

}

if (FAILED(lpddsprimary->SetClipper(lpDDClipper)))

{

lpDDClipper->Release();

return ;

}

{

SCREEN_WIDTH = 640 ;SCREEN_HEIGHT = 480;

}

//

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

ddsd.dwSize = sizeof(ddsd);