windos下QT实现usb热插拔检测

最新推荐文章于 2025-07-17 08:45:11 发布

原创最新推荐文章于 2025-07-17 08:45:11 发布 · 1.6k 阅读

1 ·

CC 4.0 BY-SA版权

QT 专栏收录该内容

25 篇文章

订阅专栏

本文介绍了一种在Windows环境下注册并监听USB设备的方法。通过使用GUID来标识不同的USB设备类型，并利用RegisterDeviceNotification函数实现对这些设备的插拔事件监听。

第一步：usb设备注册

static const GUID GUID_DEVINTERFACE_LIST[] =
{
// GUID_DEVINTERFACE_USB_DEVICE
{ 0xA5DCBF10, 0x6530, 0x11D2, { 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED } },
// GUID_DEVINTERFACE_DISK
{ 0x53f56307, 0xb6bf, 0x11d0, { 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b } },
// GUID_DEVINTERFACE_HID,
{ 0x4D1E55B2, 0xF16F, 0x11CF, { 0x88, 0xCB, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30 } },
// GUID_NDIS_LAN_CLASS
{ 0xad498944, 0x762f, 0x11d0, { 0x8d, 0xcb, 0x00, 0xc0, 0x4f, 0xc3, 0x35, 0x8c } }
//// GUID_DEVINTERFACE_COMPORT
//{ 0x86e0d1e0, 0x8089, 0x11d0, { 0x9c, 0xe4, 0x08, 0x00, 0x3e, 0x30, 0x1f, 0x73 } },
//// GUID_DEVINTERFACE_SERENUM_BUS_ENUMERATOR
//{ 0x4D36E978, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } },
//// GUID_DEVINTERFACE_PARALLEL
//{ 0x97F76EF0, 0xF883, 0x11D0, { 0xAF, 0x1F, 0x00, 0x00, 0xF8, 0x00, 0x84, 0x5C } },
//// GUID_DEVINTERFACE_PARCLASS
//{ 0x811FC6A5, 0xF728, 0x11D0, { 0xA5, 0x37, 0x00, 0x00, 0xF8, 0x75, 0x3E, 0xD1 } }
};

//注册插拔事件
HDEVNOTIFY hDevNotify;
DEV_BROADCAST_DEVICEINTERFACE NotifacationFiler;
ZeroMemory(&NotifacationFiler, sizeof(DEV_BROADCAST_DEVICEINTERFACE));
NotifacationFiler.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);
NotifacationFiler.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;

for (int i = 0; i<sizeof(GUID_DEVINTERFACE_LIST) / sizeof(GUID); i++)
{
NotifacationFiler.dbcc_classguid = GUID_DEVINTERFACE_LIST[i];//GetCurrentUSBGUID();//m_usb->GetDriverGUID();

hDevNotify = RegisterDeviceNotification((HANDLE)this->winId(), &NotifacationFiler, DEVICE_NOTIFY_WINDOW_HANDLE);
if (!hDevNotify)
{
int Err = GetLastError();
qDebug() << "注册失败" << endl;
}
//else
}

//重写事件
bool nativeEvent(const QByteArray &eventType, void *message, long *result);

bool UkeyDetectingTool::nativeEvent(const QByteArray &eventType, void *message, long *result)
{
   const MSG *msg = reinterpret_cast<MSG*>(message);
   /*if (msg->message == WM_DEVICECHANGE) {


   }*/
   return false;
}