C 識別連線到PC的U盤

using system;

using system.collections.generic;

using system.componentmodel;

using system.data;

using system.drawing;

using system.linq;

using system.text;

using system.windows.forms;

using system.io;

using system.runtime.interopservices;

namespace devicedatatransmit

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;

base.wndproc(ref m);

}

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