//************************************************************************************
// D3DEnum_EnumerateDevices()
// Enumerates all drivers, devices, and modes. The callback function is
// called each device, to confirm that the device supports the feature
// set required by the app.
//************************************************************************************
HRESULT D3DEnum_EnumerateDevices(HRESULT(*AppConfirmFn)(DDCAPS *, D3DDEVICEDESC7 *))
{
// Store the device enumeration callback function
g_fnAppConfirmFn = AppConfirmFn;
// Enumerate drivers, devices, and modes
DirectDrawEnumerateEx(DriverEnumCallback, NULL,
DDENUM_ATTACHEDSECONDARYDEVICES |
DDENUM_DETACHEDSECONDARYDEVICES |
DDENUM_NONDISPLAYDEVICES);
// Make sure devices were actually enumerated
if (0 == g_dwNumDevicesEnumerated)
{
DEBUG_MSG(_T("No devices and/or modes were enumerated!"));
return D3DENUMERR_ENUMERATIONFAILED;
}
if (0 == g_dwNumDevices)
{
DEBUG_MSG(_T("No enumerated devices were accepted!"));
DEBUG_MSG(_T("Try enabling the D3D Reference Rasterizer."));
return D3DENUMERR_SUGGESTREFRAST;
}
return S_OK;
}
HRESULT CMonitorManager::EnumSysMonitors(void)
{
m_MonitorList.clear();
HRESULT hr;
hr = DirectDrawEnumerateEx(DDEnumCallbackEx,
this,
DDENUM_ATTACHEDSECONDARYDEVICES);
return hr;
}
bool CMonitorInfo::GetMonitorGUID(HMONITOR hMon, GUID& MonGuid)
{
MONGUID mg;
ZeroMemory(&mg, sizeof(mg));
mg.Mon = hMon; // tell callback which monitor to look for
HRESULT hr = DirectDrawEnumerateEx(GetGUIDCallback, &mg,
DDENUM_ATTACHEDSECONDARYDEVICES);
if (FAILED(hr))
return(FALSE);
if (!mg.Valid) // if callback didn't find the monitor
return(FALSE);
MonGuid = mg.Guid; // pass monitor's GUID to caller
return(TRUE);
}
dx5_driver * dx5_common_class::get_driver_list()
{
//if (dx_driver_list) free_driver_list(dx_driver_list);//This function can be called more than once.
//but its the callers responsability to delete the list after use.
dx_driver_list=0;
if (!i4_dx5_check(DirectDrawEnumerateEx(dd_device_callback,0,
DDENUM_ATTACHEDSECONDARYDEVICES|
DDENUM_DETACHEDSECONDARYDEVICES|
DDENUM_NONDISPLAYDEVICES)))
{
free_driver_list(dx_driver_list);
dx_driver_list=0;
}
return dx_driver_list;
}
IDirectDraw2 * dx5_common_class::initialize_driver(dx5_driver * driver)
{
if (!driver)
{
return 0;
}
dx5_ddraw=0;
if (!i4_dx5_check(DirectDrawEnumerateEx(dd_create_callback,(void *)driver->DriverName,
DDENUM_ATTACHEDSECONDARYDEVICES|DDENUM_DETACHEDSECONDARYDEVICES|DDENUM_NONDISPLAYDEVICES)))
{
return 0;
}
if (!dx5_ddraw)
{
MessageBox(NULL,"The DirectDraw Driver stored in the registry has failed or does not exist.\n"
"Reverting to Default","Invalid Settings",MB_OK);
ZeroMemory(&i4_win32_startup_options.guid_screen,sizeof(GUID));
if (!i4_dx5_check(DirectDrawCreate(NULL,&dx5_ddraw,0)))
{
return 0;
}
;
}
;
IDirectDraw2 * dd=0;
if (!i4_dx5_check(dx5_ddraw->QueryInterface(IID_IDirectDraw2,(void * *)&dd)))
{
dx5_ddraw->Release();
return 0;
}
dx5_ddraw->Release(); // we are only using DirectDraw2 interface, free this one
return dd;
}
