📄 c++ builder 程序设计实用教程 - 8_5 cd光碟播放器 - 张晋 - 17xie.htm
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<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US>MediaPlayer1->Visible=true;</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置可见状态</SPAN></P>
<P class=a1><SPAN lang=EN-US>MediaPlayer1->DeviceType=dtCDAudio;</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置播放设备类型</SPAN></P>
<P class=a1><SPAN lang=EN-US>MediaPlayer1->Open();</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开多媒体设备</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Button1Click(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>Form1->MediaPlayer1->Play();</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">播放</SPAN><SPAN
lang=EN-US>CD</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Button2Click(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>Form1->MediaPlayer1->Pause();</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">暂停播放</SPAN><SPAN
lang=EN-US>CD</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Button3Click(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>Form1->MediaPlayer1->Next();</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">播放下一首曲目</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Button4Click(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>Form1->MediaPlayer1->Previous();</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">播放前一首曲目</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Button5Click(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>Form1->MediaPlayer1->Stop();</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">停止播放</SPAN><SPAN
lang=EN-US>CD</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=a1><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=a1><SPAN lang=EN-US>void __fastcall TForm1::Timer1Timer(TObject
*Sender)</SPAN></P>
<P class=a1><SPAN lang=EN-US>{</SPAN></P>
<P class=a1><SPAN
lang=EN-US>Form1->Edit1->Text=IntToStr(Form1->MediaPlayer1->Tracks);</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示曲目总数</SPAN></P>
<P class=a1><SPAN
lang=EN-US>Form1->Edit2->Text=IntToStr(Form1->MediaPlayer1->Position);</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示播放位置</SPAN></P>
<P class=a1><SPAN
lang=EN-US>Form1->MediaPlayer1->TimeFormat=tfMilliseconds;</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置时间格式</SPAN></P>
<P class=a1><SPAN
lang=EN-US>Form1->Edit3->Text=FloatToStr((Form1->MediaPlayer1->Length)/60000)+"</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">分</SPAN><SPAN
lang=EN-US>";</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示唱片长度</SPAN></P>
<P class=a1><SPAN
lang=EN-US>Form1->Edit4->Text=IntToStr(Form1->MediaPlayer1->Start);</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示播放起始位置</SPAN></P>
<P class=a1><SPAN lang=EN-US>switch (Form1->MediaPlayer1->Mode)</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>{</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpNotReady: Form1->Edit5->Text="Not ready";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpStopped:<SPAN style="mso-spacerun: yes">
</SPAN>Form1->Edit5->Text="Stopped";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN><SPAN
style="mso-spacerun: yes"> </SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpPlaying:<SPAN style="mso-spacerun: yes">
</SPAN>Form1->Edit5->Text="Playing";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpRecording:Form1->Edit5->Text="Recording";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpSeeking:<SPAN style="mso-spacerun: yes">
</SPAN>Form1->Edit5->Text="Seeking";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpPaused:<SPAN style="mso-spacerun: yes">
</SPAN>Form1->Edit5->Text="Paused";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>break;</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>case
mpOpen:<SPAN style="mso-spacerun: yes">
</SPAN>Form1->Edit5->Text="Open";</SPAN></P>
<P class=a1><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>}</SPAN></P>
<P class=a1><SPAN lang=EN-US>//</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示播放模式</SPAN></P>
<P class=a1><SPAN lang=EN-US>}</SPAN></P>
<P class=a1><SPAN
lang=EN-US>//---------------------------------------------------------------------------</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US><o:p> </o:p></SPAN></P></DIV></DIV></CENTER>
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