SPEAKN: Demonstrates Multimedia Sound Using User-Defined Resources

Click to open or copy the SPEAKN project files.

The SPEAKN sample brings together graphics output and sound output. The SPEAKN sample illustrates Multimedia extensions with the following programming techniques:

• Implementing sound output using the multimedia APIs (application programming interfaces) defined in the Windows Software Development Kit MMSYSTEM.H header file.
  
  
• SPEAKN uses user-defined resources to store multimedia data like sounds and bitmaps. See Technical Note 35: Using Multiple Resource Files and Header Files with Visual C++ for a discussion of maintaining user-defined resources in a separate .RC file not maintained directly by Microsoft Visual C++.
  
  
• Using bitmap buttons. (The CTRLTEST sample application provides a more exhaustive illustration of using CBitmapButton.)
  
  
• Implementing an application user interface that consists of a single dialog box. (The TRACER sample provides an even simpler illustration.)

A sound card is required if you want to hear the sound output, but you can run the application without a sound card.

When you first run SPEAKN, it plays a "welcome" sound and displays a What is this? dialog box. When the sound play completes, SPEAKN displays the first of a series of images — a picture of a dog. Type "dog" into the edit box. When you enter the correct word, SPEAKN rewards you with a sound and moves on to the next image.

The happy-face bitmap initially has no smile or frown. If the first character you type is correct, the face turns to a smile; if it is incorrect, the face turns to a frown.

This sample demonstrates the following keywords:

AfxGetResourceHandle; AfxMessageBox; CBitmapButton::AutoLoad; CBitmapButton::LoadBitmaps; CDialog::DoModal; CDialog::EndDialog; CDialog::OnInitDialog; CDialog::OnOK; CFont::CreateFontIndirect; CString::GetLength; CString::IsEmpty; CString::LoadString; CString::MakeUpper; CWinApp::Enable3dControls; CWinApp::InitInstance; CWnd::DoDataExchange; CWnd::EnableWindow; CWnd::GetDlgItem; CWnd::GetWindowText; CWnd::Invalidate; CWnd::SetFocus; CWnd::SetFont; CWnd::SetWindowText; CWnd::ShowWindow; CWnd::SubclassDlgItem; CWnd::UpdateData; CWnd::UpdateWindow; DestroyIcon; FindResource; FreeResource; LoadIcon; LoadResource; LockResource; MAKEINTRESOURCE; PlaySound; PostQuitMessage; lstrcpy; mbstowcs; memset; sndPlaySound; strlen