Hi folks, I am currently working on a 3D game which uses DirectX 8.1. I wanted to use fullscreen mode, so I tried to set the "windowed" param of the present parameters structure to "FALSE". Unfortunately, it does not work: DirectX tells me that the mode is not supported and that "CreateDevice" failed. Any suggestions what could solve the problem? I don''''t need any signature ;-)

No, that format does not work, too. And everything works fine when using windowed mode.

WIDTH=GetSystemMetrics(SM_CXSCREEN);
HEIGHT=GetSystemMetrics(SM_CYSCREEN);

WNDCLASS WndClass;

WndClass.nostyle=CS_HREDRAW | CS_VREDRAW;
WndClass.cbClsExtra=0;
WndClass.cbWndExtra=sizeof(DWORD);
WndClass.lpfnWndProc=(WNDPROC)WndProc;
WndClass.hInstance=hInstance;
WndClass.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
WndClass.hIcon=NULL;
WndClass.lpszMenuName=NULL;
WndClass.lpszClassName="Voxel3DWndClass";

//Register class
if(RegisterClass(&WndClass)==NULL) return 1;

//Create window
hWnd=CreateWindowEx(0,"Voxel3DWndClass",APP_TITLEVERSION, WS_POPUP,0,0,WIDTH,HEIGHT,NULL,NULL,hInstance,NULL);
if(hWnd == NULL) return 1;

//...
//message loop etc.
//...

//Create D3D Object
lpD3D=Direct3DCreate8(D3D_SDK_VERSION);

//Determine display mode
D3DDISPLAYMODE d3ddm;
lpD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3ddm);

//Init params
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory( &d3dpp, sizeof(d3dpp));
d3dpp.Windowed = FALSE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.BackBufferCount = 1;

//Create device ### ERROR OCCURS HERE WHEN CALLING CREATEDEVICE ###
d3dpp.BackBufferFormat=D3DFMT_A8R8G8B8;
CreateDevice(D3DDEVTYPE_HAL,&d3dpp);


I don''''t need any signature ;-)

add this...

d3dpp.BackBufferWidth = 800;
d3dpp.BackBufferHeight = 600;

that should fix it, the problem probably is that you are setting the back buffer dimentions to an invalid setting.

Yes, it works now! Thanks! The problem was that I did not set the back buffer height and width. But why did it work in windowed mode then?

I don''''t need any signature ;-)

quote:Original post by Shooter
Yes, it works now! Thanks! The problem was that I did not set the back buffer height and width. But why did it work in windowed mode then?

I don''t need any signature ;-)

Because you don''t need to set those parameters for windowed mode.