Multimedia Q: Setting recording source

Not quite Graphics & Gaming, but kinda in the same field :)

I'm looking for an mci string or API call which will allow me to set the recording source for the computer's sound card. Ideally I'd like to toggle between the line-in devce and cd-audio device.

Any help would be appreciated.

Use the mciSendString API to record sounds. Make a Form with 2 CommandButtons (cmdRecord and cmdSave) and put the following code into your Form.

Code:

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Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As Any, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long
               
Private Sub cmdRecord_Click()

    'Open a WaveAudio called Record
    mciSendString "open new type waveaudio Alias record", 0&, 0, 0
    'Start Recording
    mciSendString "record record", 0&, 0, 0
   
End Sub

Private Sub cmdSave_Click()

    'Stops recording
    mciSendString "stop record", 0&, 0, 0
    'Saves the sound
    mciSendString "save record C:\Windows\Desktop\MyWav.wav", 0&, 0, 0
    'Close "Record"
    mciSendString "close record", 0&, 0, 0
                                     
End Sub

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Does this actually set the recording *source*?

I understand that the code you've posted allows me to perform the recording - that I can do fine. But I need to set the source - as you would throught the sound card's mixer. I need to be able to switch between recording the CD Audio input and the Line input.

Any ideas?