打开或关闭CD

实现效果：

知识运用：

　　API函数 mciSendString　　//函数用来向媒体控制接口设备发送命令声明如下

[DllImport("winmm.dll",EntryPoint="mciSendString")]
public static extern int mciSendString(string IpstrCommand,string IpstrReturnString,System.UInt16 uReturnLength,System.IntPtr HwndCallback);

实现代码：

    [DllImport("winmm.dll",EntryPoint="mciSendString")]

    public static extern int mciSendString(string IpstrCommand,string IpstrReturnString,System.UInt16 uReturnLength,System.IntPtr HwndCallback);

    private void button1_Click(object sender, EventArgs e)

    {

        mciSendString("Set cdaudio door open wait","",0,this.Handle);         //打开CD_ROM

    }

    private void button2_Click(object sender, EventArgs e)

    {

        mciSendString("Set cdaudio door closed wait", "", 0, this.Handle);     //关闭CD_ROM

    }

巴特西

打开或关闭CD_ROM

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