//-----------------------------------------------------------------------------
// Name: OnOpenSoundFile()
// Desc: Called when the user requests to open a sound file
//-----------------------------------------------------------------------------
VOID OnOpenSoundFile( HWND hDlg )
{
static TCHAR strFileName[MAX_PATH] = TEXT("");
static TCHAR strPath[MAX_PATH] = TEXT("");
// Setup the OPENFILENAME structure
OPENFILENAME ofn = { sizeof(OPENFILENAME), hDlg, NULL,
TEXT("Wave Files\0*.wav\0All Files\0*.*\0\0"), NULL,
0, 1, strFileName, MAX_PATH, NULL, 0, strPath,
TEXT("Open Sound File"),
OFN_FILEMUSTEXIST|OFN_HIDEREADONLY, 0, 0,
TEXT(".wav"), 0, NULL, NULL };
// Get the default media path (something like C:\WINDOWS\MEDIA)
if( '\0' == strPath[0] )
{
if( GetWindowsDirectory( strPath, MAX_PATH ) != 0 )
{
if( strcmp( &strPath[strlen(strPath)], TEXT("\\") ) )
strcat( strPath, TEXT("\\") );
strcat( strPath, TEXT("MEDIA") );
}
}
// Update the UI controls to show the sound as loading a file
EnableWindow( GetDlgItem( hDlg, IDC_PLAY ), FALSE );
EnableWindow( GetDlgItem( hDlg, IDC_STOP ), FALSE );
SetDlgItemText( hDlg, IDC_STATUS, TEXT("Loading file...") );
if( g_pSound )
{
g_pSound->Stop();
g_pSound->Reset();
}
// Display the OpenFileName dialog. Then, try to load the specified file
if( TRUE != GetOpenFileName( &ofn ) )
{
if( g_pSound )
{
EnableWindow( GetDlgItem( hDlg, IDC_PLAY ), TRUE );
EnableWindow( GetDlgItem( hDlg, IDC_STOP ), TRUE );
}
SetDlgItemText( hDlg, IDC_STATUS, TEXT("Load aborted.") );
return;
}
SetDlgItemText( hDlg, IDC_FILENAME, TEXT("") );
// Make sure wave file is a valid wav file
ValidateWaveFile( hDlg, strFileName );
// Remember the path for next time
strcpy( strPath, strFileName );
char* strLastSlash = strrchr( strPath, '\\' );
if( strLastSlash )
strLastSlash[0] = '\0';
}
//-----------------------------------------------------------------------------
// Name: OnInitDialog()
// Desc: Initializes the dialogs (sets up UI controls, etc.)
//-----------------------------------------------------------------------------
VOID OnInitDialog( HWND hDlg )
{
HRESULT hr;
// Load the icon
HICON hIcon = LoadIcon( g_hInst, MAKEINTRESOURCE( IDR_MAINFRAME ) );
// Create a static IDirectSound in the CSound class.
// Set coop level to DSSCL_PRIORITY, and set primary buffer
// format to stereo, 22kHz and 16-bit output.
g_pSoundManager = new CSoundManager();
if( FAILED( hr = g_pSoundManager->Initialize( hDlg, DSSCL_PRIORITY, 2, 22050, 16 ) ) )
{
DXTRACE_ERR( TEXT("Initialize"), hr );
MessageBox( hDlg, "Error initializing DirectSound. Sample will now exit.",
"DirectSound Sample", MB_OK | MB_ICONERROR );
EndDialog( hDlg, IDABORT );
return;
}
// Set the icon for this dialog.
PostMessage( hDlg, WM_SETICON, ICON_BIG, (LPARAM) hIcon ); // Set big icon
PostMessage( hDlg, WM_SETICON, ICON_SMALL, (LPARAM) hIcon ); // Set small icon
// Create a timer, so we can check for when the soundbuffer is stopped
SetTimer( hDlg, 0, 250, NULL );
// Get handles to dialog items
HWND hFreqSlider = GetDlgItem( hDlg, IDC_FREQUENCY_SLIDER );
// Set UI defaults
CheckDlgButton( hDlg, IDC_LOOP_CHECK, BST_CHECKED );
CheckRadioButton( hDlg, IDC_WAVEFORM_TRIANGLE, IDC_WAVEFORM_TRIANGLE, IDC_WAVEFORM_TRIANGLE );
// Set the range and position of the freq slider from
// DSBFREQUENCY_MIN and DSBFREQUENCY_MAX are DirectSound constants
PostMessage( hFreqSlider, TBM_SETRANGEMAX, TRUE, DSFX_GARGLE_RATEHZ_MAX );
PostMessage( hFreqSlider, TBM_SETRANGEMIN, TRUE, DSFX_GARGLE_RATEHZ_MIN );
PostMessage( hFreqSlider, TBM_SETPOS, TRUE, DSFX_GARGLE_RATEHZ_MIN );
// Load default wave file
TCHAR strFile[MAX_PATH];
GetWindowsDirectory( strFile, MAX_PATH );
lstrcat( strFile, "\\media\\ding.wav" );
if( FAILED( hr = ValidateWaveFile( hDlg, strFile ) ) )
{
// Set the UI controls
SetDlgItemText( hDlg, IDC_FILENAME, TEXT("") );
SetDlgItemText( hDlg, IDC_STATUS, TEXT("No file loaded.") );
}
}
