[DllImport("winmm.dll")]
public static extern int mciSendString(string s1,string s2,int i1,int i2);
//关闭光驱
mciSendString ("set cdaudio door closed","",0,0);
//打开光驱
mciSendString ("set cdaudio door open","",0,0);
**********************************************************************************************
光驱弹出与关闭
using System.Runtime.InteropServices ;
[DllImport("winmm.dll")]
public static extern int mciSendString(string s1,string s2,int i1,int i2);
private ......
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