What's wrong with this DirectDraw7 Application?

Mman · 2001-12-27T22:53:03

Hi, can someone pleas tell me why I get the errors? Thanks a lot! -------------------------------- #include HRESULT Result; LPDIRECTDRAW7 DirectDraw7Ptr; Result = DirectDrawCreate ( NULL, &DirectDraw7, IID IDirectDraw7, NULL ); if ( Result == DD_OK ) {// Create was successful } else {/*Initialization failed */} Result = DirectDraw7Ptr -> SetCooperativeLevel (Window, DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_ALLOWREBOOT ); if ( Result == DD_OK ) { /* The coperative level was set*/ } else {/* error*/} DDSURFACEDESC2 SurfaceDesc; bool FoundMode; ZeroMemory ( ( void * ) &SurfaceDesc, sizeof SurfaceDesc ); SurfaceDesc.dwSize = sizeof ( DDSURFACEDESC2 ); SurfaceDesc.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT; SurfaceDesc.dwWidth = 1024; SurfaceDesc.dwHeight = 768; SurfaceDesc.ddpfPixelFormat.dwSize = sizeof ( DDPIXELFORMAT ); SurfaceDesc.ddpfPixelFormat.dwFlags = DDPF_RGB; SurfaceDesc.ddpfPixelFormat.dwRGBBitCount = 32; DirectDraw7Ptr ->EnumDisplayModes ( 0, &SurfaceDesc, ( void * ) &FoundMode, CallbackFunction ); HRESULT WINAPI CallbackFunction ( LPDDSURFACEDESC2 lpDDSurfaceDesc, LPVOID lpContext ) { *( ( bool * ) lpContext ) = true; return DDENUMRET_CANCEL; //stop the enumeration } Result = DirectDraw7Ptr ->SetDisplayMode (1024, 768,24,0, 0 ); if ( Result == DD_OK ) { /*Display Mode was set*/} else { /*not set*/} HRESULT Val; DDSURFACEDESC2 SurfaceDesc; LPDIRECTDRAWSURFACE7 PrimarySurface; ZeroMemory ( &SurfaceDesc, sizeof ( DDSURFACEDESC2 ) ); SurfaceDesc.swSize = sizeof ( DDSURFACEDESC2 ); SurfaceDesc.swFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT; SurfaceDesc.dwBackBufferCount = 1; SurfaceDesc.ddsCaps.dwCaps = DDSCAPS_COMPLEX | DDSCAPS_FLIP DDSCAPS_VIDEOMEMORY; Val = DirectDraw7 ->CreateSurface ( &SurfaceDesc, &PrimarySurface, NULL ); if ( Val == DD_OK ) {/*surface created*/} else {/*Not created*/} bool LockSurface ( LPDIRECTDRAWSURFACE7 Surface7, RECT &Rect, DDSURFACEDESC2 &SurfaceDesc ) { HRESULT Val; ZeroMemory ( &SurfaceDesc, sizeof ( DDSURFACEDESC2 ) ); SurfaceDesc.dwSize = sizeof ( DDSURFACEDESC2 ); Val = Surface7 ->Lock ( &Rect, &SurfaceDesc, DDLOCK_NOSYSLOCK | DDLOCK_WAIT, NULL ); if ( Val ==DD_OK ) { //pointer to bits is in surfacedesc.lpsuface return true; } else { /*Locking failed */ return false; } } Surface7 ->Unlock ( &Rect );