1.建立乙個c#的windows的窗體應用,在from1新增乙個button控制項,其他控制項也可以。左鍵雙擊控制項進入**編寫。
**如下:
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;
2.建立乙個判斷訊息和乙個控制項的操作
**如下:
protected override void wndproc(ref message m)
}break;
case dbt_configchangecanceled:
break;
case dbt_configchanged:
break;
case dbt_customevent:
break;
case dbt_devicequeryremove:
break;
case dbt_devicequeryremovefailed:
break;
case dbt_deviceremovecomplete: //u盤解除安裝
label1.text="";
break;
case dbt_deviceremovepending:
break;
case dbt_devicetypespecific:
break;
case dbt_devnodes_changed:
break;
case dbt_querychangeconfig:
break;
case dbt_userdefined:
break;
default:
break;}}
}catch (exception ex)
base.wndproc(ref m);
}
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