方法:
//mciSendStrin.是用来播放多媒体文件的API指令,可以播放MPEG,AVI,WAV,MP3,等等,下面介绍一下它的使用方法: //第一个参数:要发送的命令字符串。字符串结构是:[命令][设备别名][命令参数]. //第二个参数:返回信息的缓冲区,为一指定了大小的字符串变量. //第三个参数:缓冲区的大小,就是字符变量的长度. //第四个参数:回调方式,一般设为零 //返回值:函数执行成功返回零,否则返回错误代码 [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)] private static extern int mciSendString( string lpstrCommand, string lpstrReturnString, int uReturnLength, int hwndCallback); private static void mciSendString(String cmd) { mciSendString(cmd, "", 0, 0); } private static void StartRecord() { mciSendString("close movie"); mciSendString("open new type WAVEAudio alias movie"); mciSendString("record movie"); } private static void StopRecord(string filename) { mciSendString("stop movie"); mciSendString("save movie " + filename); mciSendString("close movie"); }
用法举例:
protected void btStart_Click(object sender, EventArgs e) { //开始录音 StartRecord(); } protected void btStop_Click(object sender, EventArgs e) { //停止录音 StopRecord(@"C: est.wav"); } protected void btPlay_Click(object sender, EventArgs e) { //播放录音 也可以适用window系统带的TTS(Text To Speech)播放录音 SoundPlayer sp = new SoundPlayer(@"c: est.wav"); sp.PlaySync(); }
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