CE获取Wifi的设备名、连接状态和信号强度

技术2025-12-02 5

CE 获取 Wifi 的设备名、连接状态和信号强度

CE获取Wifi的设备名、连接状态和信号强度

Note：需CE4.0或更高版本（兼容NDIS5.1）支持一、加入头文件 #include <winioctl.h> #include <ntddndis.h> #include <nuiouser.h> 二、Attach to NDISUIO HANDLE hNdis = ::CreateFile( NDISUIO_DEVICE_NAME, GENERIC_ALL, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, (HANDLE)INVALID_HANDLE_VALUE );

三、获取设备名称

UCHAR cbQueryBuffer[ 1024 ]; PNDISUIO_QUERY_BINDING pQueryBinding; DWORD dwBytesReturned = 0; pQueryBinding = (PNDISUIO_QUERY_BINDING)&cbQueryBuffer[ 0 ]; pQueryBinding->BindingIndex = 0; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_QUERY_BINDING, (LPVOID)&cbQueryBuffer[ 0 ], sizeof(NDISUIO_QUERY_BINDING), (LPVOID)&cbQueryBuffer[ 0 ], sizeof(cbQueryBuffer), &dwBytesReturned, NULL ) == TRUE ) { TCHAR* pDeviceName = (TCHAR*)( cbQueryBuffer + pQueryBinding->DeviceNameOffset ); }

四、检测连接状态

NIC_STATISTICS nicStatistics = { 0 }; DWORD dwBytesReturned = 0; BOOL bConnected = FALSE; nicStatistics.ptcDeviceName = pDeviceName; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_NIC_STATISTICS, NULL, 0, &nicStatistics, sizeof(NIC_STATISTICS), &dwBytesReturned, NULL ) == TRUE ) { bConnected = ( nicStatistics.MediaState == MEDIA_STATE_CONNECTED ); }

五、获取信号强度

// example. // < -90 : No Signal // < -81 : Very Low // < -71 : Low // < -67 : Good // < -57 : Very Good // ... : Excellent NDISUIO_QUERY_OID ndisQueryOid = { 0 }; DWORD dwBytesReturned = 0; int nDb = 0; ndisQueryOid.Oid = OID_802_11_RSSI; ndisQueryOid.ptcDeviceName = pDeviceName; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_QUERY_OID_VALUE, (LPVOID)&ndisQueryOid, sizeof(ndisQueryOid), (LPVOID)&ndisQueryOid, sizeof(ndisQueryOid), &dwBytesReturned, NULL ) == TRUE ) { ::CopyMemory( &nDb, &ndisQueryOid.Data[ 0 ], sizeof(ULONG) ); } 又一篇文章获取信号强度：

void OnBnClickedButtonWifi(){ HANDLE hNdis = ::CreateFile( NDISUIO_DEVICE_NAME, GENERIC_ALL, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, (HANDLE)INVALID_HANDLE_VALUE ); //DEVICE NAME UCHAR cbQueryBuffer[ 1024 ]; PNDISUIO_QUERY_BINDING pQueryBinding; DWORD dwBytesReturned = 0; TCHAR* pDeviceName; pQueryBinding = (PNDISUIO_QUERY_BINDING)&cbQueryBuffer[ 0 ]; pQueryBinding->BindingIndex = 0; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_QUERY_BINDING, (LPVOID)&cbQueryBuffer[ 0 ], sizeof(NDISUIO_QUERY_BINDING), (LPVOID)&cbQueryBuffer[ 0 ], sizeof(cbQueryBuffer), &dwBytesReturned, NULL ) == TRUE ) { pDeviceName = (TCHAR*)( cbQueryBuffer + pQueryBinding->DeviceNameOffset ); }#if 0 //CONNECT STATUS NIC_STATISTICS nicStatistics = { 0 }; BOOL bConnected = FALSE; nicStatistics.ptcDeviceName = pDeviceName; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_NIC_STATISTICS, NULL, 0, &nicStatistics, sizeof(NIC_STATISTICS), &dwBytesReturned, NULL ) == TRUE ) { if( nicStatistics.MediaState == MEDIA_STATE_CONNECTED ) m_edit1.SetWindowTextW(L"Connected"); else m_edit1.SetWindowTextW(L"not connect"); }#endif NDISUIO_QUERY_OID ndisQueryOid = { 0 }; int nDb = 0; ndisQueryOid.Oid = OID_802_11_RSSI; ndisQueryOid.ptcDeviceName = pDeviceName; if ( ::DeviceIoControl( hNdis, IOCTL_NDISUIO_QUERY_OID_VALUE, (LPVOID)&ndisQueryOid, sizeof(ndisQueryOid), (LPVOID)&ndisQueryOid, sizeof(ndisQueryOid), &dwBytesReturned, NULL ) == TRUE ) { ::CopyMemory( &nDb, &ndisQueryOid.Data[ 0 ], sizeof(ULONG) ); } CString str; str.Format(L"%d",ndisQueryOid.Data[ 0 ]); m_edit1.SetWindowTextW(str); CloseHandle(hNdis);}

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