我尝试在 C#.NET 中使用 TAPI 编写自动应答机。
我使用tapi3_dev 示例工作。此示例在Windows XP 中工作，但在Windows 7 中，一切正常（没有错误或异常），但没有声音播放，只是我可以录制音频；
请帮我。
我的代码::
case TAPI3Lib.ADDRESS_EVENT.AE_RINGING: this.PlayVoice(CallInfo);
...
private void PlayVoice(TAPI3Lib.ITCallInfo iTCallInfo)
{
try
{
//the supported file extensions are .avi and .wav. http://msdn.microsoft.com/en-us/library/ms730457.aspx
TAPI3Lib.ITBasicCallControl2 iTBasicCallControl2 = (TAPI3Lib.ITBasicCallControl2)iTCallInfo;
this.selectedTerminal = iTBasicCallControl2.RequestTerminal(TAPI3Lib.TapiConstants.CLSID_String_FilePlaybackTerminal, TAPI3Lib.TapiConstants.TAPIMEDIATYPE_AUDIO, TAPI3Lib.TERMINAL_DIRECTION.TD_CAPTURE);
TAPI3Lib.ITMediaPlayback iTMediaPlayback = (TAPI3Lib.ITMediaPlayback)this.selectedTerminal;
object[] playList = new object[1];
playList[0] = @"C:\ModemLog\7533f717-6cc5-41d5-9845-6983cff85e4b.avi";
//playList[0] = @"C:\Users\Abedi\Desktop\Anghezi.wav";
//playList[0] = @"C:\ProgramData\Venta\VentaFax & Voice 6\Service\greet1.wav";
iTMediaPlayback.PlayList = playList;
iTBasicCallControl2.SelectTerminalOnCall(this.selectedTerminal);
this.iTMediaControl = (TAPI3Lib.ITMediaControl)this.selectedTerminal;
if (iTCallInfo.CallState == TAPI3Lib.CALL_STATE.CS_OFFERING)
iTBasicCallControl2.Answer();
this.iTMediaControl.Start();
(selectedTerminal as TAPI3Lib.ITBasicAudioTerminal).Volume = 0;
}
catch (Exception exception)
{
this.Log(exception.Message, "Exception in PlayVoice");
this.WriteLine(exception.Message);
this.buttonDisconnect_Click(null, EventArgs.Empty);
}
}