在C#中如何判弹出所有光驱？
0
悬赏园豆：50
[已关闭问题]
我机器上有两光驱，下面这段代码只能弹出第一个光驱，无法指定弹出第二个光驱。
应该怎么写才可能呢？
using System;
using System.Text;
using System.Runtime.InteropServices;
class CloseCD
{
[DllImport( "winmm.dll", EntryPoint="mciSendStringA", CharSet=CharSet.Ansi )]
protected static extern int mciSendString( string lpstrCommand, StringBuilder lpstrReturnString, int uReturnLength, IntPtr hwndCallback );
public static void Main()
{
int ret = mciSendString( "set cdaudio door open", null, 0, IntPtr.Zero );
Console.ReadLine();
ret = mciSendString( "set cdaudio door closed", null, 0, IntPtr.Zero );
}
}
using System.Text;
using System.Runtime.InteropServices;
class CloseCD
{
[DllImport( "winmm.dll", EntryPoint="mciSendStringA", CharSet=CharSet.Ansi )]
protected static extern int mciSendString( string lpstrCommand, StringBuilder lpstrReturnString, int uReturnLength, IntPtr hwndCallback );
public static void Main()
{
int ret = mciSendString( "set cdaudio door open", null, 0, IntPtr.Zero );
Console.ReadLine();
ret = mciSendString( "set cdaudio door closed", null, 0, IntPtr.Zero );
}
}
其他回答(1)
0
mciSendString( "set h:\ cdaudio door open", null, 0, IntPtr.Zero );
mciSendString( "set h:\ cdaudio door closed", null, 0, IntPtr.Zero );
h:\ 是你指定的驱动器号
0
我也很好奇,google一下,答案如下:
//M：是光驱所在的盘符
mciSendString('open M: type CDAudio alias finch wait', nil, 0, Self.Handle);
//打开光驱
mciSendString('set finch door open wait', nil, 0, Self.Handle);
//关闭光驱
// mciSendString('set finch door closed wait', nil, 0, Self.Handle);
mciSendString('Close finch', nil, 0, Self.Handle);
