Pocket PC 录音
#region 作者:ah, 2007-10-31
/**//*
* 版本 1.0
* 维护者:
* 最近维护日期:
*
*/
#endregion
using System;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;
using OpenNETCF.Multimedia.Audio;
using System.IO;
using System.Reflection;
namespace ppcvoicerecorder
{
public partial class frmRecorder : Form
{
private Player player;
private Recorder recorder;
private Stream stream;
private int timeLeft;
private const int RECORD_LENGTH = 600;
private const int MAX_RECORD_LENGTH = 600;//录音最大长度
private string TEMP_PATH = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
private string TEMP_FILE = SystemInfoFilePath();
private DateTime STARTRECORD_TIME;//开始录音时间
private DateTime ENDRECORE_TIME;//结实录音时间
ConnDate conn = new ConnDate();
public frmRecorder()
{
InitializeComponent();
lblTime.Width = this.Width;
// 实例化录音机
recorder = new Recorder();
recorder.DoneRecording += new WaveFinishedHandler(recorder_DoneRecording);
// 实例化播放器
player = new Player();
player.DonePlaying += new WaveDoneHandler(player_DonePlaying);
}
void recorder_DoneRecording()
{
mniRecord.Text = "录音";
tmrRecord.Enabled = false;
}
设置本地存储路径#region 设置本地存储路径
/**//// <summary>
/// 获取系统配置文件的ppc本地存储路径
/// </summary>
private static string SystemInfoFilePath()
{
string strDbfile = string.Format("{0}\\"+ConnDate.CodeGenerator("I")+".wav",
Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase));
return string.Format("{0}", strDbfile);
}
#endregion
private DialogResult _isCancel = DialogResult.No;
public DialogResult IsCancel
{
get { return _isCancel; }
}
void player_DonePlaying(object sender, IntPtr wParam, IntPtr lParam)
{
// mniPlay.Text = "播放";
}
private void tmrRecord_Tick(object sender, EventArgs e)
{
timeLeft--;
if (timeLeft >0)
{
lblTime.Text = string.Format("0:{0:00}", MAX_RECORD_LENGTH - timeLeft);
}
}
private Stream PrepareTempFile()
{
// 检查临时目录是否存在
if (!Directory.Exists(TEMP_PATH))
{
Directory.CreateDirectory(TEMP_PATH);
}
if (File.Exists(TEMP_FILE))
{
File.Delete(TEMP_FILE);
}
stream = File.OpenWrite(TEMP_FILE);
return stream;
}
private void Record()
{
try
{
if (mniRecord.Text == "停止/确认")
{
tmrRecord.Enabled = false;
// 停止录音
this.ENDRECORE_TIME = DateTime.Now;
this.lblTime.Text = conn.DateDiff(this.STARTRECORD_TIME,this.ENDRECORE_TIME);
recorder.Stop();
_isCancel = DialogResult.OK;
mniRecord.Text = "录音";
this.Close();
}
else
{
this.STARTRECORD_TIME = DateTime.Now;
stream = PrepareTempFile();
timeLeft = RECORD_LENGTH;
tmrRecord.Enabled = true;
// 开始录音
recorder.RecordFor(stream, RECORD_LENGTH, SoundFormats.Mono8bit11kHz);
mniRecord.Text = "停止/确认";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/**//// <summary>
/// 取得录音文件路径
/// </summary>
/// <returns>返回路径</returns>
public string GetFileInfo()
{
try
{
return this.TEMP_FILE;
}
catch (Exception err)
{
return string.Empty;
MessageBox.Show(err.Message);
}
}
private void mniRecord_Click(object sender, EventArgs e)
{
this.Record();
}
private void mniMenuBack_Click(object sender, EventArgs e)
{
this.Close();
}
}
}