ＱＴＣ＋＋监控USB插拔

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88

#if defined(Q_OS_WIN) #include <qt_windows.h> #include <QtCore/qglobal.h> #include <dbt.h> #endif     QByteArray *MainWindow::receivedData=new QByteArray();//接收到数据 ThreadComPort *MainWindow::threadInitComPort=0; #if defined(Q_OS_WIN) static const GUID GUID_DEVINTERFACE_USBSTOR = { 0xA5DCBF10L, 0x6530, 0x11D2, { 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED } }; static const GUID InterfaceClassGuid = GUID_DEVINTERFACE_USBSTOR; static bool isDoingSearch=false;   static void SerachComPort(){     if(isDoingSearch==false){             isDoingSearch=true;             bool hasDevice=false;             QList<QSerialPortInfo> list= QSerialPortInfo::availablePorts();             for(int i=0;i<list.count();i++){                 if(list[i].description().contains("USB CDC",Qt::CaseInsensitive)){                     qDebug()<<"设备已经插入,端口："<<list[i].portName();                     Globals::PortName=list[i].portName();                     hasDevice=true;                 }             }            if(!hasDevice){                 qDebug()<<"请插入设备";                 Globals::PortName="NoDevice";                 AddControl(new NoDevice());                 Globals::parent->InitComPort();            }            isDoingSearch=false;         } } LRESULT CALLBACK dw_internal_proc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {     if (message == WM_DEVICECHANGE) {         switch (wParam) {         case DBT_DEVNODES_CHANGED:             qDebug()<<"设备插拔啦.";             Globals::parent->CloseComPort();             SerachComPort();             break;         }     }     // qDebug()<<"HWND："<<hwnd;     return DefWindowProc(hwnd, message, wParam, lParam); }      static inline HWND WndProc(const void* userData)  {      QString className="UsbMonitor";      HINSTANCE hi = qWinAppInst();        WNDCLASS wc;      wc.style = 0;      wc.lpfnWndProc = dw_internal_proc;      wc.cbClsExtra = 0;      wc.cbWndExtra = 0;      wc.hInstance = hi;      wc.hIcon = 0;      wc.hCursor = 0;      wc.hbrBackground = 0;      wc.lpszMenuName = NULL;      wc.lpszClassName = reinterpret_cast<const wchar_t *>(className.utf16());      RegisterClass(&wc);        HWND hwnd = CreateWindow(wc.lpszClassName,    // classname                               wc.lpszClassName,    // window name                               0,                      // style                               0, 0, 0, 0,            // geometry                               0,                      // parent                               0,                      // menu handle                               hi,                    // application                               0);                    // windows creation data.      if (hwnd) {          DEV_BROADCAST_DEVICEINTERFACE NotificationFilter ;          ZeroMemory(&NotificationFilter, sizeof(NotificationFilter)) ;          NotificationFilter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);          NotificationFilter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;          NotificationFilter.dbcc_classguid = InterfaceClassGuid;          RegisterDeviceNotification(hwnd, &NotificationFilter, DEVICE_NOTIFY_WINDOW_HANDLE);      }      return hwnd;  } #endif