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《csharp的音乐播放类》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、MP3类一usingSystem;usingSystem.Collections.Generic;usingSystem.Text;usingSystem.Runtime.InteropServices;namespaceKJJ{classAPI{publicconstintWM_SYSCOMMAND=0x112;publicconstintSC_MOVE=0xF010;publicconstintHTCAPTION=0x2;[DllImportAttribute("user32.dll")]publicstaticexternintSendMessage(IntP
2、trhWnd,intMsg,intwParam,intlParam);[DllImportAttribute("user32.dll")]publicstaticexternboolReleaseCapture();[DllImport("kernel32.dll",CharSet=CharSet.Auto)]publicstaticexternintGetShortPathName(stringlpszLongPath,stringshortFile,intcchBuffer);[DllImport("winmm.dll",EntryPoint="mciSendS
3、tring",CharSet=CharSet.Auto)]publicstaticexternintmciSendString(stringlpstrCommand,stringlpstrReturnString,intuReturnLength,inthwndCallback);}}MP3类二classForm32{publicstaticvoidOpenAndPlay(stringstrFileName,boolflagRepeat){stringstrCommand="";stringbuf="";strCommand="open""+strFileName
4、+""aliasmusic";buf=buf.PadLeft(128,'');API.mciSendString(strCommand,buf,buf.Length,0);if(flagRepeat){strCommand="playmusicrepeat";}else{strCommand="playmusic";}API.mciSendString(strCommand,buf,buf.Length,0);}publicstaticvoidPlay(boolflagRepeat){stringstrCommand="";if(flagRepeat){strCo
5、mmand="playmusicrepeat";}else{strCommand="playmusic";}API.mciSendString(strCommand,"",0,0);}publicstaticboolSetProcess(intnPosition){boolsuccess=false;stringstrCommand=string.Format("seekmusicto{0}",nPosition);if(API.mciSendString(strCommand,"",0,0)==0){success=true;}returnsuccess;}pub
6、licstaticvoidStepN(intnStep){API.mciSendString("stepmusicby"+nStep.ToString(),"",0,0);}publicstaticvoidStop()//暂停播放{API.mciSendString("stopmusic","",0,0);}publicstaticvoidPause()//暂停{API.mciSendString("pausemusic","",0,0);}publicstaticvoidResume()//继续播放{API.mciSendString("resumemusic",
7、"",0,0);}publicstaticintGetCurrentPosition()//获得当前播放位置{stringbuf="";buf=buf.PadLeft(128,'');API.mciSendString("statusmusicposition",buf,buf.Length,0);buf=buf.Trim().Replace(" ","");if(string.IsNullOrEmpty(buf)){return0;}else{return(int)(Convert.ToDouble(buf))/1000;}}publicstaticvoid
