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waveInOpen
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The waveInOpen function opens the given waveform-audio input device for recording. |
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| Declaration: |
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MMRESULT waveInOpen(
LPHWAVEIN phwi,
UINT_PTR uDeviceID,
LPWAVEFORMATEX pwfx,
DWORD_PTR dwCallback,
DWORD_PTR dwCallbackInstance,
DWORD fdwOpen
);
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| FoxPro declaration: |
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DECLARE INTEGER waveInOpen IN winmm;
INTEGER @ phwi,;
INTEGER uDeviceID,;
STRING @ pwfx,;
INTEGER dwCallback,;
INTEGER dwCallbackInstance,;
LONG fdwOpen
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| Parameters: |
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phwi
Pointer to a buffer that receives a handle identifying the open waveform-audio input device.
uDeviceID
Identifier of the waveform-audio input device to open.
pwfx
Pointer to a WAVEFORMATEX structure that identifies the desired format for recording waveform-audio data.
dwCallback
Pointer to a fixed callback function, an event handle, a handle to a window, or the identifier of a thread to be called during waveform-audio recording to process messages related to the progress of recording.
dwCallbackInstance
User-instance data passed to the callback mechanism.
fdwOpen
Flags for opening the device. |
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| Return value: |
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| Returns MMSYSERR_NOERROR (0) if successful or an error otherwise. |
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| My comment: |
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Use the waveInGetNumDevs function to determine the number of waveform-audio input devices present on the system.
The device identifier specified by uDeviceID varies from zero to one less than the number of devices present. The WAVE_MAPPER constant can also be used as a device identifier. |
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| Word Index links for the waveInOpen : |
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| Created: | 2003-01-11 14:00:29 | | Modified: | 2003-01-11 14:05:42 |
Visited in last 7 days: 31 |
Class for sound recording 