LPDIRECTDRAW7 lpDD=0; LPDIRECTDRAWSURFACE7 lpDDSPrimary=0; LPDIRECTDRAWSURFACE7 lpDDSBack=0; LPDIRECTDRAWSURFACE7 bit; case WM_CREATE: DDSURFACEDESC2 ddsd; DDSCAPS2 ddscaps; if(FAILED(DirectDrawCreateEx(0,(LPVOID*)&lpDD,IID_IDirectDraw7,0))) MessageBox(hwnd,"DirectDrawCreateEx","Failed",MB_OK); if(FAILED(lpDD->SetCooperativeLevel(hwnd,DDSCL_FULLSCREEN|DDSCL_EXCLUSIVE|DDSCL_ALLOWREBOOT))) MessageBox(hwnd,"CooperativeLevel","FAiled",MB_OK); if(FAILED(lpDD->SetDisplayMode(800,600,16,0,0))) MessageBox(hwnd,"DisplaySettings","Failed",MB_OK); ZeroMemory(&ddsd,sizeof(ddsd)); ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS|DDSD_BACKBUFFERCOUNT; ddsd.ddsCaps.dwCaps=DDSCAPS_FLIP|DDSCAPS_COMPLEX|DDSCAPS_PRIMARYSURFACE; ddsd.dwBackBufferCount=1; if(FAILED(lpDD->CreateSurface(&ddsd,&lpDDSPrimary,0))) MessageBox(hwnd,"CreateSurface primary","error",MB_OK); ddscaps.dwCaps=DDSCAPS_BACKBUFFER; //Does no difference if(FAILED(lpDDSPrimary->GetAttachedSurface(&ddscaps,&lpDDSBack))) MessageBox(hwnd,"GetAttachedSurface","error",MB_OK); ZeroMemory(&ddsd,sizeof(ddsd)); ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS|DDSD_HEIGHT|DDSD_WIDTH; ddsd.ddsCaps.dwCaps=DDSCAPS_OFFSCREENPLAIN; ddsd.dwHeight=100; ddsd.dwWidth=100; if(FAILED(lpDD->CreateSurface(&ddsd,&bit,0))) MessageBox(hwnd,"Error, Load Bitmap Surface","Error",MB_OK); bit=DDLoadBitmap(lpDD,"a.bmp",0,0); // When The window is created, I get the message "Error, Could not get attached surface" This is my own code.. What is wrong? It´s just like the tutorials :S

ZeroMemory your ddscaps structure before setting the dwCaps value and calling GetAttachedSurface().