ComboBoxSelect( IDC_ADAPTER_COMBO, pAdapterInfo );
            }
            if( !ComboBoxSomethingSelected( IDC_ADAPTER_COMBO ) &&
                ComboBoxCount( IDC_ADAPTER_COMBO ) > 0 )
            {
                ComboBoxSelectIndex( IDC_ADAPTER_COMBO, 0 );
            }
        }
        return TRUE;

    case WM_COMMAND:
        switch( LOWORD(wParam) )
        {
        case IDOK:
            EndDialog( hDlg, IDOK );
            break;
        case IDCANCEL:
            EndDialog( hDlg, IDCANCEL );
            break;
        case IDC_ADAPTER_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                AdapterChanged();
            break;
        case IDC_DEVICE_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                DeviceChanged();
            break;
        case IDC_ADAPTERFORMAT_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                AdapterFormatChanged();
            break;
        case IDC_RESOLUTION_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                ResolutionChanged();
            break;
        case IDC_REFRESHRATE_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                RefreshRateChanged();
            break;
        case IDC_BACKBUFFERFORMAT_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                BackBufferFormatChanged();
            break;
        case IDC_DEPTHSTENCILBUFFERFORMAT_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                DepthStencilBufferFormatChanged();
            break;
        case IDC_MULTISAMPLE_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                MultisampleTypeChanged();
            break;
        case IDC_MULTISAMPLE_QUALITY_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                MultisampleQualityChanged();
            break;
        case IDC_VERTEXPROCESSING_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                VertexProcessingChanged();
            break;
        case IDC_PRESENTINTERVAL_COMBO:
            if( CBN_SELCHANGE == HIWORD(wParam) )
                PresentIntervalChanged();
            break;
        case IDC_WINDOW:
        case IDC_FULLSCREEN:
            WindowedFullscreenChanged();
            break;
        }
        return TRUE;

    default:
        return FALSE;
    }
}



//-----------------------------------------------------------------------------
// Name: AdapterChanged
// Desc: Respond to a change of selected adapter.
//-----------------------------------------------------------------------------
void CD3DSettingsDialog::AdapterChanged( void )
{
    D3DAdapterInfo* pAdapterInfo = (D3DAdapterInfo*)ComboBoxSelected( IDC_ADAPTER_COMBO );
    if( pAdapterInfo == NULL )
        return;
    
    if( m_d3dSettings.IsWindowed )
        m_d3dSettings.pWindowed_AdapterInfo = pAdapterInfo;
    else
        m_d3dSettings.pFullscreen_AdapterInfo = pAdapterInfo;

    // Update device combo box
    ComboBoxClear( IDC_DEVICE_COMBO );
    for( UINT idi = 0; idi < pAdapterInfo->pDeviceInfoList->Count(); idi++ )
    {
        D3DDeviceInfo* pDeviceInfo = (D3DDeviceInfo*)pAdapterInfo->pDeviceInfoList->GetPtr(idi);
        ComboBoxAdd( IDC_DEVICE_COMBO, pDeviceInfo, 
                     D3DDevTypeToString( pDeviceInfo->DevType ) );
        if( pDeviceInfo->DevType == m_d3dSettings.DevType() )
            ComboBoxSelect( IDC_DEVICE_COMBO, pDeviceInfo );
    }
    if( !ComboBoxSomethingSelected( IDC_DEVICE_COMBO ) &&
        ComboBoxCount( IDC_DEVICE_COMBO ) > 0 )
    {
        ComboBoxSelectIndex( IDC_DEVICE_COMBO, 0 );
    }
}




//-----------------------------------------------------------------------------
// Name: DeviceChanged
// Desc: Respond to a change of selected device by resetting the 
//       fullscreen/windowed radio buttons.  Updating these buttons will 
//       trigger updates of the rest of the dialog.
//-----------------------------------------------------------------------------
void CD3DSettingsDialog::DeviceChanged( void )
{
    D3DDeviceInfo* pDeviceInfo = (D3DDeviceInfo*)ComboBoxSelected( IDC_DEVICE_COMBO );
    if( pDeviceInfo == NULL )
        return;

    if( m_d3dSettings.IsWindowed )
        m_d3dSettings.pWindowed_DeviceInfo = pDeviceInfo;
    else
        m_d3dSettings.pFullscreen_DeviceInfo = pDeviceInfo;

    // Update fullscreen/windowed radio buttons
    bool HasWindowedDeviceCombo = false;
    bool HasFullscreenDeviceCombo = false;
    for( UINT idc = 0; idc < pDeviceInfo->pDeviceComboList->Count(); idc++ )
    {
        D3DDeviceCombo* pDeviceCombo = (D3DDeviceCombo*)pDeviceInfo->pDeviceComboList->GetPtr(idc);
        if( pDeviceCombo->IsWindowed )
            HasWindowedDeviceCombo = true;
        else
            HasFullscreenDeviceCombo = true;
    }
    EnableWindow( GetDlgItem( m_hDlg, IDC_WINDOW ), HasWindowedDeviceCombo );
    EnableWindow( GetDlgItem( m_hDlg, IDC_FULLSCREEN ), HasFullscreenDeviceCombo );
    if (m_d3dSettings.IsWindowed && HasWindowedDeviceCombo)
    {
        CheckRadioButton( m_hDlg, IDC_WINDOW, IDC_FULLSCREEN, IDC_WINDOW );
    }
    else
    {
        CheckRadioButton( m_hDlg, IDC_WINDOW, IDC_FULLSCREEN, IDC_FULLSCREEN );
    }
    WindowedFullscreenChanged();
}




//-----------------------------------------------------------------------------
// Name: WindowedFullscreenChanged
// Desc: Respond to a change of windowed/fullscreen state by rebuilding the
//       adapter format list, resolution list, and refresh rate list.
//       Updating the selected adapter format will trigger updates of the 
//       rest of the dialog.
//-----------------------------------------------------------------------------
void CD3DSettingsDialog::WindowedFullscreenChanged( void )
{
    D3DAdapterInfo* pAdapterInfo = (D3DAdapterInfo*)ComboBoxSelected( IDC_ADAPTER_COMBO );
    D3DDeviceInfo* pDeviceInfo = (D3DDeviceInfo*)ComboBoxSelected( IDC_DEVICE_COMBO );
    if( pAdapterInfo == NULL || pDeviceInfo == NULL )
        return;

    if( IsDlgButtonChecked( m_hDlg, IDC_WINDOW ) )
    {
        m_d3dSettings.IsWindowed = true;
        m_d3dSettings.pWindowed_AdapterInfo = pAdapterInfo;
        m_d3dSettings.pWindowed_DeviceInfo = pDeviceInfo;

        // Update adapter format combo box
        ComboBoxClear( IDC_ADAPTERFORMAT_COMBO );
        ComboBoxAdd( IDC_ADAPTERFORMAT_COMBO, (void*)m_d3dSettings.Windowed_DisplayMode.Format,
            D3DUtil_D3DFormatToString( m_d3dSettings.Windowed_DisplayMode.Format ) );
        ComboBoxSelectIndex( IDC_ADAPTERFORMAT_COMBO, 0 );
        EnableWindow( GetDlgItem( m_hDlg, IDC_ADAPTERFORMAT_COMBO ), false );

        // Update resolution combo box
        DWORD dwResolutionData;
        TCHAR strResolution[50];
        dwResolutionData = MAKELONG( m_d3dSettings.Windowed_DisplayMode.Width,
                                     m_d3dSettings.Windowed_DisplayMode.Height );
        _sntprintf( strResolution, 50, TEXT("%d by %d"), m_d3dSettings.Windowed_DisplayMode.Width, 
            m_d3dSettings.Windowed_DisplayMode.Height );
        strResolution[49] = 0;
        ComboBoxClear( IDC_RESOLUTION_COMBO );
        ComboBoxAdd( IDC_RESOLUTION_COMBO, ULongToPtr(dwResolutionData), strResolution );
        ComboBoxSelectIndex( IDC_RESOLUTION_COMBO, 0 );
        EnableWindow( GetDlgItem( m_hDlg, IDC_RESOLUTION_COMBO ), false );

        // Update refresh rate combo box
        TCHAR strRefreshRate[50];
        if( m_d3dSettings.Windowed_DisplayMode.RefreshRate == 0 )
            lstrcpy( strRefreshRate, TEXT("Default Rate") );
        else
            _sntprintf( strRefreshRate, 50, TEXT("%d Hz"), m_d3dSettings.Windowed_DisplayMode.RefreshRate );
        strRefreshRate[49] = 0;
        ComboBoxClear( IDC_REFRESHRATE_COMBO );
        ComboBoxAdd( IDC_REFRESHRATE_COMBO, ULongToPtr(m_d3dSettings.Windowed_DisplayMode.RefreshRate),
            strRefreshRate );
        ComboBoxSelectIndex( IDC_REFRESHRATE_COMBO, 0 );
        EnableWindow( GetDlgItem( m_hDlg, IDC_REFRESHRATE_COMBO ), false );
    }
    else
    {
        m_d3dSettings.IsWindowed = false;
        m_d3dSettings.pFullscreen_AdapterInfo = pAdapterInfo;
        m_d3dSettings.pFullscreen_DeviceInfo = pDeviceInfo;

        // Update adapter format combo box
        ComboBoxClear( IDC_ADAPTERFORMAT_COMBO );
        for( UINT idc = 0; idc < pDeviceInfo->pDeviceComboList->Count(); idc++ )
        {
            D3DDeviceCombo* pDeviceCombo = (D3DDeviceCombo*)pDeviceInfo->pDeviceComboList->GetPtr(idc);
            if( pDeviceCombo->IsWindowed )
                continue;
            D3DFORMAT adapterFormat = pDeviceCombo->AdapterFormat;
            if( !ComboBoxContainsText( IDC_ADAPTERFORMAT_COMBO, D3DUtil_D3DFormatToString( adapterFormat ) ) )
            {
                ComboBoxAdd( IDC_ADAPTERFORMAT_COMBO, (void*)adapterFormat, 
                    D3DUtil_D3DFormatToString( adapterFormat ) );
                if( adapterFormat == m_d3dSettings.Fullscreen_DisplayMode.Format )
                {
                    ComboBoxSelect( IDC_ADAPTERFORMAT_COMBO, (void*)adapterFormat );
                }
            }
        }
        if( !ComboBoxSomethingSelected( IDC_ADAPTERFORMAT_COMBO ) &&
            ComboBoxCount( IDC_ADAPTERFORMAT_COMBO ) > 0 )
        {
            ComboBoxSelectIndex( IDC_ADAPTERFORMAT_COMBO, 0 );
        }
        EnableWindow( GetDlgItem( m_hDlg, IDC_ADAPTERFORMAT_COMBO), true );
        
        // Update resolution combo box
        EnableWindow( GetDlgItem( m_hDlg, IDC_RESOLUTION_COMBO), true );
        
        // Update refresh rate combo box
        EnableWindow( GetDlgItem( m_hDlg, IDC_REFRESHRATE_COMBO), true );
    }
}




//-----------------------------------------------------------------------------
// Name: AdapterFormatChanged
// Desc: Respond to a change of selected adapter format by rebuilding the
//       resolution list and back buffer format list.  Updating the selected 
//       resolution and back buffer format will trigger updates of the rest 
//       of the dialog.
//-----------------------------------------------------------------------------
void CD3DSettingsDialog::AdapterFormatChanged( void )
{
    if( !IsDlgButtonChecked( m_hDlg, IDC_WINDOW ) )
    {
        D3DAdapterInfo* pAdapterInfo = (D3DAdapterInfo*)ComboBoxSelected( IDC_ADAPTER_COMBO );
        D3DFORMAT adapterFormat = (D3DFORMAT)PtrToUlong( ComboBoxSelected( IDC_ADAPTERFORMAT_COMBO ) );
        m_d3dSettings.Fullscreen_DisplayMode.Format = adapterFormat;

        ComboBoxClear( IDC_RESOLUTION_COMBO );
        for( UINT idm = 0; idm < pAdapterInfo->pDisplayModeList->Count(); idm++ )
        {
            D3DDISPLAYMODE displayMode = *(D3DDISPLAYMODE*)pAdapterInfo->pDisplayModeList->GetPtr(idm);
            if (displayMode.Format == adapterFormat)
            {
                DWORD dwResolutionData;
                TCHAR strResolution[50];
                dwResolutionData = MAKELONG( displayMode.Width, displayMode.Height );
                _sntprintf( strResolution, 50, TEXT("%d by %d"), displayMode.Width, displayMode.Height );
                strResolution[49] = 0;
                if (!ComboBoxContainsText( IDC_RESOLUTION_COMBO, strResolution ) )
                {
                    ComboBoxAdd( IDC_RESOLUTION_COMBO, ULongToPtr( dwResolutionData ), strResolution );
                    if (m_d3dSettings.Fullscreen_DisplayMode.Width == displayMode.Width &&
                        m_d3dSettings.Fullscreen_DisplayMode.Height == displayMode.Height)
                    {
                        ComboBoxSelect( IDC_RESOLUTION_COMBO, ULongToPtr( dwResolutionData ) );
                    }
                }
            }
        }
        if (!ComboBoxSomethingSelected( IDC_RESOLUTION_COMBO ) && 
            ComboBoxCount( IDC_RESOLUTION_COMBO ) > 0)
        {
            ComboBoxSelectIndex( IDC_RESOLUTION_COMBO, 0 );
        }
    }

    // Update backbuffer format combo box
    D3DDeviceInfo* pDeviceInfo = (D3DDeviceInfo*)ComboBoxSelected( IDC_DEVICE_COMBO );
    if( pDeviceInfo == NULL )
        return;
    ComboBoxClear( IDC_BACKBUFFERFORMAT_COMBO );
    for( UINT idc = 0; idc < pDeviceInfo->pDeviceComboList->Count(); idc++ )
    {
        D3DDeviceCombo* pDeviceCombo = (D3DDeviceCombo*)pDeviceInfo->pDeviceComboList->GetPtr(idc);
        if (pDeviceCombo->IsWindowed == m_d3dSettings.IsWindowed &&
            pDeviceCombo->AdapterFormat == m_d3dSettings.DisplayMode().Format)