Pocket PC 录音

  1作者:ah, 2007-10-31#region 作者:ah, 2007-10-31
  2/**//*
  3 * 版本 1.0
  4 * 维护者:
  5 * 最近维护日期:
  6 * 
  7 */
  8#endregion
  9using System;
 10using System.Drawing;
 11using System.Collections;
 12using System.Windows.Forms;
 13using System.Data;
 14using OpenNETCF.Multimedia.Audio;
 15using System.IO;
 16using System.Reflection;
 17
 18namespace ppcvoicerecorder
 19{
 20    public partial class frmRecorder : Form    
 21    {          
 22        private Player player;
 23        private Recorder recorder;
 24        private Stream stream;
 25        private int timeLeft;
 26     
 27        private const int RECORD_LENGTH = 600;
 28        private const int MAX_RECORD_LENGTH = 600;//录音最大长度
 29        private  string TEMP_PATH = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
 30        private string TEMP_FILE = SystemInfoFilePath();
 31        private DateTime STARTRECORD_TIME;//开始录音时间
 32        private DateTime ENDRECORE_TIME;//结实录音时间
 33        ConnDate conn = new ConnDate();
 34
 35        public frmRecorder()
 36        {
 37            InitializeComponent();
 38
 39            lblTime.Width = this.Width;          
 40            // 实例化录音机
 41            recorder = new Recorder();
 42            recorder.DoneRecording += new WaveFinishedHandler(recorder_DoneRecording);
 43            // 实例化播放器
 44            player = new Player();
 45            player.DonePlaying += new WaveDoneHandler(player_DonePlaying);           
 46        }
 47       
 48
 49        void recorder_DoneRecording()
 50        {
 51            mniRecord.Text = "录音";
 52            tmrRecord.Enabled = false;
 53           
 54        }
 55
 56        设置本地存储路径#region 设置本地存储路径
 57
 58        /**//// <summary>
 59        /// 获取系统配置文件的ppc本地存储路径
 60        /// </summary>
 61        private static string SystemInfoFilePath()
 62        {          
 63                string strDbfile = string.Format("{0}\\"+ConnDate.CodeGenerator("I")+".wav",
 64                   Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase));
 65                return string.Format("{0}", strDbfile);           
 66        }
 67        #endregion
 68
 69        private DialogResult _isCancel = DialogResult.No;
 70
 71        public DialogResult IsCancel
 72        {
 73            get { return _isCancel; }
 74        }       
 75
 76        void player_DonePlaying(object sender, IntPtr wParam, IntPtr lParam)
 77        {
 78           // mniPlay.Text = "播放";
 79        }
 80
 81        private void tmrRecord_Tick(object sender, EventArgs e)
 82        {
 83            timeLeft--;
 84            if (timeLeft >0)
 85            {
 86                lblTime.Text = string.Format("0:{0:00}", MAX_RECORD_LENGTH - timeLeft);
 87            }
 88        } 
 89       
 90        private Stream PrepareTempFile()
 91        {
 92            // 检查临时目录是否存在
 93            if (!Directory.Exists(TEMP_PATH))
 94            {
 95                Directory.CreateDirectory(TEMP_PATH);
 96            }           
 97
 98            if (File.Exists(TEMP_FILE))
 99            {
100                File.Delete(TEMP_FILE);
101            }
102
103            stream = File.OpenWrite(TEMP_FILE);
104            return stream;
105        }       
106
107        private void Record()
108        {
109            try
110            {
111                if (mniRecord.Text == "停止/确认")
112                {
113                    tmrRecord.Enabled = false;                   
114                    // 停止录音
115                    this.ENDRECORE_TIME = DateTime.Now;
116                    this.lblTime.Text = conn.DateDiff(this.STARTRECORD_TIME,this.ENDRECORE_TIME);
117                    recorder.Stop();
118                    _isCancel = DialogResult.OK;
119                    mniRecord.Text = "录音";                  
120                    this.Close();                   
121                }
122                else
123                {
124                    this.STARTRECORD_TIME = DateTime.Now;
125                    stream = PrepareTempFile();                 
126                    timeLeft = RECORD_LENGTH;
127                    tmrRecord.Enabled = true;
128
129                    // 开始录音
130                    recorder.RecordFor(stream, RECORD_LENGTH, SoundFormats.Mono8bit11kHz);
131                    mniRecord.Text = "停止/确认";                   
132                }
133            }
134            catch (Exception ex)
135            {
136                MessageBox.Show(ex.Message);
137            }
138        } 
139
140        /**//// <summary>
141        /// 取得录音文件路径
142        /// </summary>
143        /// <returns>返回路径</returns>
144        public string GetFileInfo()
145        {
146            try
147            {
148                return this.TEMP_FILE;
149            }
150            catch (Exception err)
151            {
152                return string.Empty;
153                MessageBox.Show(err.Message);
154            }
155        }        
156
157        private void mniRecord_Click(object sender, EventArgs e)
158        {
159            this.Record();           
160        }      
161
162        private void mniMenuBack_Click(object sender, EventArgs e)
163        {
164            this.Close();
165        }      
166                 
167    }
168}

Mobile Voice Notes.pdf