播放VCD等..可以用插件来运行,,,,,监测光测是不大行,,,哪只能调用windows下的com 不大懂..USB可以:using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO;namespace USB { public partial class Form1 : Form { public const int WM_DEVICECHANGE = 0x219; public const int DBT_DEVICEARRIVAL = 0x8000; public const int DBT_CONFIGCHANGECANCELED = 0x0019; public const int DBT_CONFIGCHANGED = 0x0018; public const int DBT_CUSTOMEVENT = 0x8006; public const int DBT_DEVICEQUERYREMOVE = 0x8001; public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002; public const int DBT_DEVICEREMOVECOMPLETE = 0x8004; public const int DBT_DEVICEREMOVEPENDING = 0x8003; public const int DBT_DEVICETYPESPECIFIC = 0x8005; public const int DBT_DEVNODES_CHANGED = 0x0007; public const int DBT_QUERYCHANGECONFIG = 0x0017; public const int DBT_USERDEFINED = 0xFFFF; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } protected override void WndProc(ref Message m) { try { if (m.Msg == WM_DEVICECHANGE) { switch (m.WParam.ToInt32()) { case WM_DEVICECHANGE:// break; case DBT_DEVICEARRIVAL://U盘插入 DriveInfo[] s = DriveInfo.GetDrives(); foreach (DriveInfo drive in s) { if (drive.DriveType == DriveType.Removable) { richTextBox1.AppendText("U盘已插入,盘符为:" + drive.Name.ToString() + "\r\n"); break; } } break; case DBT_CONFIGCHANGECANCELED: MessageBox.Show("2"); break; case DBT_CONFIGCHANGED: MessageBox.Show("3"); break; case DBT_CUSTOMEVENT: MessageBox.Show("4"); break; case DBT_DEVICEQUERYREMOVE: MessageBox.Show("5"); break; case DBT_DEVICEQUERYREMOVEFAILED: MessageBox.Show("6"); break; case DBT_DEVICEREMOVECOMPLETE: //U盘卸载 richTextBox1.AppendText("U盘已卸载,盘符为:"); break; case DBT_DEVICEREMOVEPENDING: MessageBox.Show("7"); break; case DBT_DEVICETYPESPECIFIC: MessageBox.Show("8"); break; case DBT_DEVNODES_CHANGED://可用,设备变化时 MessageBox.Show("9"); break; case DBT_QUERYCHANGECONFIG: MessageBox.Show("10"); break; case DBT_USERDEFINED: MessageBox.Show("11"); break; default: break; } } } catch (Exception ex) { MessageBox.Show(ex.Message); } base.WndProc(ref m); } private void button1_Click(object sender, EventArgs e) {
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;namespace USB
{
public partial class Form1 : Form
{
public const int WM_DEVICECHANGE = 0x219;
public const int DBT_DEVICEARRIVAL = 0x8000;
public const int DBT_CONFIGCHANGECANCELED = 0x0019;
public const int DBT_CONFIGCHANGED = 0x0018;
public const int DBT_CUSTOMEVENT = 0x8006;
public const int DBT_DEVICEQUERYREMOVE = 0x8001;
public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002;
public const int DBT_DEVICEREMOVECOMPLETE = 0x8004;
public const int DBT_DEVICEREMOVEPENDING = 0x8003;
public const int DBT_DEVICETYPESPECIFIC = 0x8005;
public const int DBT_DEVNODES_CHANGED = 0x0007;
public const int DBT_QUERYCHANGECONFIG = 0x0017;
public const int DBT_USERDEFINED = 0xFFFF; public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{ } protected override void WndProc(ref Message m)
{
try
{
if (m.Msg == WM_DEVICECHANGE)
{
switch (m.WParam.ToInt32())
{
case WM_DEVICECHANGE://
break;
case DBT_DEVICEARRIVAL://U盘插入
DriveInfo[] s = DriveInfo.GetDrives();
foreach (DriveInfo drive in s)
{
if (drive.DriveType == DriveType.Removable)
{
richTextBox1.AppendText("U盘已插入,盘符为:" + drive.Name.ToString() + "\r\n");
break;
}
}
break;
case DBT_CONFIGCHANGECANCELED:
MessageBox.Show("2");
break;
case DBT_CONFIGCHANGED:
MessageBox.Show("3");
break;
case DBT_CUSTOMEVENT:
MessageBox.Show("4");
break;
case DBT_DEVICEQUERYREMOVE:
MessageBox.Show("5");
break;
case DBT_DEVICEQUERYREMOVEFAILED:
MessageBox.Show("6");
break;
case DBT_DEVICEREMOVECOMPLETE: //U盘卸载
richTextBox1.AppendText("U盘已卸载,盘符为:");
break;
case DBT_DEVICEREMOVEPENDING:
MessageBox.Show("7");
break;
case DBT_DEVICETYPESPECIFIC:
MessageBox.Show("8");
break;
case DBT_DEVNODES_CHANGED://可用,设备变化时
MessageBox.Show("9");
break;
case DBT_QUERYCHANGECONFIG:
MessageBox.Show("10");
break;
case DBT_USERDEFINED:
MessageBox.Show("11");
break;
default:
break;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
base.WndProc(ref m);
} private void button1_Click(object sender, EventArgs e)
{
} }
}
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