1.包含头文件“dbt.h”；
2.在头文件“stdafx.h”中添加“#define WINVER 0x0501”；3.添加消息映射和处理函数：
afx_msg BOOL OnDeviceChange(UINT nEventType,DWORD dwData);
ON_WM_DEVICECHANGE()
{
DEV_BROADCAST_DEVICEINTERFACE* dbd = (DEV_BROADCAST_DEVICEINTERFACE*) dwData;
//这里进行信息匹配,比如guid等
//针对各个事件进行处理.
switch (nEventType)
{
case DBT_DEVICEREMOVECOMPLETE:
//拔掉设备处理
break;case DBT_DEVICEARRIVAL:
//插上设备处理
break;
default:
break;
}
return TRUE;
}
4.注册设备
void CTestDlg::RegistDevice()
{
GUID hid_guid={0x4D1E55B2,0xF16F,0x11CF,0x88,0xCB,0x00,0x11,0x11,0x00,0x00,0x30};
DEV_BROADCAST_DEVICEINTERFACE dbi;
ZeroMemory(&dbi,sizeof(dbi));
dbi.dbcc_size=sizeof(dbi);
dbi.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
dbi.dbcc_reserved = 0;
dbi.dbcc_classguid = hid_guid;
HDEVNOTIFY hDevNotify;
hDevNotify = RegisterDeviceNotification(m_hWnd,
&dbi,
DEVICE_NOTIFY_WINDOW_HANDLE
);
if(!hDevNotify)
{
int Err = GetLastError();
MessageBox("RegisterDeviceNotification failed");
}
}
PS：
在vc6中出现此错误：error C2065: 'DEV_BROADCAST_DEVICEINTERFACE' : undeclared identifier
解决：
1、#include <dbt.h>；
2、在StdAfx.h添加 #define WINVER 0x0500
只有注册了该设备,OnDeviceChange才能获得详细的信息,否则收到的nEventType参数都是0007，dwData无数据。
| Identifier | Class GUID | Header |
|---|---|---|
| GUID_DEVINTERFACE_USB_DEVICE | {A5DCBF10-6530-11D2-901F-00C04FB951ED} | Usbiodef.h |
| GUID_DEVINTERFACE_USB_HOST_CONTROLLER | {3ABF6F2D-71C4-462A-8A92-1E6861E6AF27} | Usbiodef.h |
| GUID_DEVINTERFACE_USB_HUB | {F18A0E88-C30C-11D0-8815-00A0C906BED8} | Usbiodef.h |
| GUID_DEVINTERFACE_NET | {CAC88484-7515-4C03-82E6-71A87ABAC361} | Ndisguid.h |
| GUID_DEVINTERFACE_MODEM | {2C7089AA-2E0E-11D1-B114-00C04FC2AAE4} | Ntddmodm.h |
| GUID_DEVINTERFACE_DISK | {53F56307-B6BF-11D0-94F2-00A0C91EFB8B} | Ntddstor.h |
| GUID_DEVINTERFACE_VOLUME | {53F5630D-B6BF-11D0-94F2-00A0C91EFB8B} | Ntddstor.h |
| GUID_DEVINTERFACE_MEDIUMCHANGER | {53F56310-B6BF-11D0-94F2-00A0C91EFB8B} | Ntddstor.h |
| GUID_DEVINTERFACE_CDROM | {53F56308-B6BF-11D0-94F2-00A0C91EFB8B} | Ntddstor.h |
| GUID_DEVINTERFACE_PARTITION | {53F5630A-B6BF-11D0-94F2-00A0C91EFB8B} | Ntddstor.h |
| GUID_DEVINTERFACE_HID | {4D1E55B2-F16F-11CF-88CB-001111000030} | Hidclass.h |
| GUID_DEVINTERFACE_KEYBOARD | {884B96C3-56EF-11D1-BC8C-00A0C91405DD} | Ntddkbd.h |
| GUID_DEVINTERFACE_MOUSE | {378DE44C-56EF-11D1-BC8C-00A0C91405DD} | Ntddmou.h |
| GUID_DEVINTERFACE_DISPLAY_ADAPTER | {5B45201D-F2F2-4F3B-85BB-30FF1F953599} | Ntddvdeo.h |
| GUID_DEVINTERFACE_IMAGE | {6BDD1FC6-810F-11D0-BEC7-08002BE2092F} | Wiaintfc.h |
| GUID_DEVINTERFACE_MONITOR | {E6F07B5F-EE97-4a90-B076-33F57BF4EAA7} | Ntddvdeo.h |
| GUID_DEVINTERFACE_BRIGHTNESS | {FDE5BBA4-B3F9-46FB-BDAA-0728CE3100B4} | Dispmprt.h |
| GUID_DEVINTERFACE_I2C | {2564AA4F-DDDB-4495-B497-6AD4A84163D7} | Dispmprt.h |
| GUID_BTHPORT_DEVICE_INTERFACE | {0850302A-B344-4fda-9BE9-90576B8D46F0} | Bthdef.h |
| GUID_DEVINTERFACE_COMPORT | {86E0D1E0-8089-11D0-9CE4-08003E301F73} | Ntddser.h |
| GUID_DEVINTERFACE_PARCLASS | {811FC6A5-F728-11D0-A537-0000F8753ED1} | Ntddpar.h |