C# 以编程方式打开CD托槽

我想在Windows中用C#创建一个小程序，可以打开CD驱动器舌片-如果有，请弹出CD。我想知道从何处开始。

由于有一个名为mciSendStringA的有用API函数，在C#中以编程方式打开和关闭磁盘驱动器并不那么困难

首先，您需要定义打开磁盘托盘的功能：

[DllImport("winmm.dll", EntryPoint = "mciSendString")]
public static extern int mciSendStringA(string lpstrCommand, string lpstrReturnString, 
                            int uReturnLength, int hwndCallback);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door open", returnString, 0, 0);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door closed", returnString, 0, 0);

如果上面的代码未编译，请尝试在源代码的最顶端添加以下C行：

using System.Runtime.InteropServices;

打开磁盘驱动器

要打开磁盘驱动器，需要使用mciSendStringA发送两个命令字符串。第一个将为所需的驱动器指定一个名称。第二个命令将实际打开磁盘托盘：

[DllImport("winmm.dll", EntryPoint = "mciSendString")]
public static extern int mciSendStringA(string lpstrCommand, string lpstrReturnString, 
                            int uReturnLength, int hwndCallback);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door open", returnString, 0, 0);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door closed", returnString, 0, 0);

关闭磁盘驱动器

要关闭磁盘驱动器，需要再次发送两个命令字符串。第一个将是相同的。第二个命令现在将关闭磁盘托盘：

[DllImport("winmm.dll", EntryPoint = "mciSendString")]
public static extern int mciSendStringA(string lpstrCommand, string lpstrReturnString, 
                            int uReturnLength, int hwndCallback);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door open", returnString, 0, 0);

mciSendStringA("open " + driveLetter + ": type CDaudio alias drive" + driveLetter, 
                 returnString, 0, 0);
mciSendStringA("set drive" + driveLetter + " door closed", returnString, 0, 0);

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非常感谢，我对学习更多这些API很感兴趣。你知道好的教程吗？重复：