Eject dvd rom in C#

Hi. I'm pretty new to C# and programming at all. And i wonder how you exactly can eject/open your dvd reader when you press a button. And please be nice and tell me all code, I mean if there are any system. code and such.
Happy and great full for serious answers:) Hi. I'm pretty new to C# and programming at all. And i wonder how you exactly can eject/open your dvd reader when you press a button. And please be nice and tell me all code, I mean if there are any system. code and such.
Happy and great full for serious answers:)

You'll have to use interop. Here is a link to everything you'll need.

First, you'll have to call CreateFile to get a handle to the drive. Next, you'll have to call DeviceIOControl to eject the drive. And finally, you'll have to call CloseHandle to close the drive handle.

Assuming that your eject class is named DVD and that your DVD is the E: drive, you would initiate the ejection process as follows:

Code:

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DVD.Eject(@"\\.\E:");

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Also, you'll need the following constants:

Code:

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const uint GENERICREAD = 0x80000000;
const uint OPENEXISTING = 3;
const uint IOCTL_STORAGE_EJECT_MEDIA = 2967560;
const int INVALID_HANDLE = -1;

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This is also needed:

Code:

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using System.Runtime.InteropServices;

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Use the mciSendString. Here's a link: http://www.devx.com/tips/Tip/13324

Code:

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Public Class Form1

Declare Function mciSendString Lib "winmm" Alias "mciSendStringA" (ByVal _

lpstrCommand As String, ByVal lpstrReturnString As String, _

ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
mciSendString("Set CDAudio Door Open Wait", 0&, 0&, 0&)
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
mciSendString("Set CDAudio Door Closed Wait", 0&, 0&, 0&)
End Sub

End Class

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Thank's all!