ddsd.dwWidth = SCREEN_WIDTH;

ddsd.dwHeight = SCREEN_HEIGHT;

ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;

//

SetTimer(1,1000,NULL);

return; //执行成功

}

int index=0;

void CshowpicDlg::OnTimer(UINT_PTR nIDEvent)

{

// TODO: 在此添加消息处理程序代码和/或调用默认值

int tmp = 0;

for(int i=0;i<6;i++)

{

if(DD_OK!=(lpdd7->CreateSurface(&ddsd, &lpddsmypage[i], NULL)))

{

return ;

}

POINT p;

p.x = 0; p.y = 0;

m_screen.ClientToScreen(&p);

tmp = (i+index)%6;

// m_screen.GetClientRect(&rcRectDest);

if(i==5)

{rcRectDest.left = 0; rcRectDest.top=0; rcRectDest.right = 640; rcRectDest.bottom = 480;}

else if(i==4)

{rcRectDest.left = 640; rcRectDest.top=0; rcRectDest.right = 960; rcRectDest.bottom = 240;}

else if(i==3)

{rcRectDest.left = 640; rcRectDest.top=240; rcRectDest.right = 960; rcRectDest.bottom = 480;}

else if(i==2)

{rcRectDest.left = 640; rcRectDest.top=480; rcRectDest.right = 960; rcRectDest.bottom = 720;}

else if(i==1)

{rcRectDest.left = 320; rcRectDest.top=480; rcRectDest.right = 640; rcRectDest.bottom = 720;}

else if(i==0)

{rcRectDest.left = 0; rcRectDest.top=480; rcRectDest.right = 320; rcRectDest.bottom = 720;}

OffsetRect(&rcRectDest, p.x, p.y);

SetRect(&rcRectSrc, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);

/////////////////////////////////////////////////////////////

if(DD_OK != lpddsmypage[i]->Lock(NULL,&ddsd,DDLOCK_WAIT|DDLOCK_SURFACEMEMORYPTR,NULL))

{

return ;

}

DWORD *bmp_buffer = (DWORD *)ddsd.lpSurface;

memcpy(bmp_buffer,buf[tmp],SCREEN_WIDTH*SCREEN_HEIGHT*4);

if(DD_OK != lpddsmypage[i]->Unlock(NULL))

{

return ;

}

if(DD_OK != lpddsprimary->Blt( &rcRectDest, lpddsmypage[i], &rcRectSrc, DDBLT_WAIT, NULL))

{

return ;

}

if(lpddsmypage)

{

lpddsmypage[i]->Release();

lpddsmypage[i]=NULL;

}

}

index++;

CDialog::OnTimer(nIDEvent);

}v