Multimedia Q: Setting recording source

[cplatts]

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.

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

[cplatts]

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?