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private void Form1_Load(object sender, EventArgs e)

{

[B]if (WaveNative.waveInGetNumDevs() == 0) //вылетает тут, при попытке вызова метода[/B]

{

textBoxConsole.AppendText(DateTime.Now.ToString() + " : В системе не обнаружено устройств для оцифровки звуковых сигналов\r\n");

}

else

{

textBoxConsole.AppendText(DateTime.Now.ToString() + " : Устройство для оцифровки звуковых сигналов обнаружено \r\n");

_MyWaveFormat = new WaveFormat(48000, 16, 1);

int sizeBuffer = 1000;

_MyAudioFrame = new AudioFrame(_MyWaveFormat, sizeBuffer);

_MyRecorder = new WaveInRecorder(-1, _MyWaveFormat, sizeBuffer, 3, new BufferDoneEventHandler(DataArrived));

_MyRecorderBuffer = new byte[sizeBuffer];

_MyWaveStorage = new WaveStorage(_MyWaveFormat, sizeBuffer);

}

using System.Runtime.InteropServices;

//....

public class WaveNative

{

// consts

public const int MMSYSERR_NOERROR = 0; // no error

public const int MM_WOM_OPEN = 0x3BB;

public const int MM_WOM_CLOSE = 0x3BC;

public const int MM_WOM_DONE = 0x3BD;

public const int MM_WIM_OPEN = 0x3BE;

public const int MM_WIM_CLOSE = 0x3BF;

public const int MM_WIM_DATA = 0x3C0;

public const int CALLBACK_FUNCTION = 0x00030000; // dwCallback is a FARPROC

public const int TIME_MS = 0x0001; // time in milliseconds

public const int TIME_SAMPLES = 0x0002; // number of wave samples

public const int TIME_BYTES = 0x0004; // current byte offset

// callbacks

public delegate void WaveDelegate(IntPtr hdrvr, int uMsg, int dwUser, ref WaveHdr wavhdr, int dwParam2);

// structs

[StructLayout(LayoutKind.Sequential)]

public struct WaveHdr

{

public IntPtr lpData; // pointer to locked data buffer

public int dwBufferLength; // length of data buffer

public int dwBytesRecorded; // used for input only

public IntPtr dwUser; // for client's use

public int dwFlags; // assorted flags (see defines)

public int dwLoops; // loop control counter

public IntPtr lpNext; // PWaveHdr, reserved for driver

public int reserved; // reserved for driver

}

private const string mmdll = "winmm.dll";

// WaveIn calls

[DllImport(mmdll)]

public static extern int waveInGetNumDevs();

[DllImport(mmdll)]

public static extern int waveInAddBuffer(IntPtr hwi, ref WaveHdr pwh, int cbwh);

[DllImport(mmdll)]

public static extern int waveInClose(IntPtr hwi);

[DllImport(mmdll)]

public static extern int waveInOpen(out IntPtr phwi, int uDeviceID, WaveFormat lpFormat, WaveDelegate dwCallback, IntPtr dwInstance, int dwFlags);

[DllImport(mmdll)]

public static extern int waveInPrepareHeader(IntPtr hWaveIn, ref WaveHdr lpWaveInHdr, int uSize);

[DllImport(mmdll)]

public static extern int waveInUnprepareHeader(IntPtr hWaveIn, ref WaveHdr lpWaveInHdr, int uSize);

[DllImport(mmdll)]

public static extern int waveInReset(IntPtr hwi);

[DllImport(mmdll)]

public static extern int waveInStart(IntPtr hwi);

[DllImport(mmdll)]

public static extern int waveInStop(IntPtr hwi);

}