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5692858
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2011-04-17T10:01:52.340
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2011-04-17T10:01:52.340
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<p>I have created a new approach from WMI.</p> <pre><code>void MyDLPWMIDeviceListener::AddInsertUSBHandler() { WqlEventQuery ^q; ManagementEventWatcher ^w; ManagementScope ^scope = gcnew ManagementScope("root\\CIMV2"); scope->Options->EnablePrivileges = true; try { q = gcnew WqlEventQuery(); q->EventClassName = "__InstanceCreationEvent"; q->WithinInterval = TimeSpan(0, 0, 3); q->Condition = "TargetInstance ISA 'Win32_USBControllerDevice'"; w = gcnew ManagementEventWatcher(scope, q); w->EventArrived += gcnew EventArrivedEventHandler(USBAdded); w->Start(); } catch (Exception ^ex) { if (w != nullptr) w->Stop(); } } </code></pre> <p>After that I have handled the generated event like below:</p> <pre><code>void MyDLPWMIDeviceListener::USBAdded(Object ^sender, EventArrivedEventArgs ^e) { try { PropertyData ^pd = e->NewEvent->Properties["TargetInstance"]; if (pd != nullptr) { ManagementBaseObject ^mbo = dynamic_cast<ManagementBaseObject ^>(pd->Value); if(mbo != nullptr && mbo->Properties["Dependent"] != nullptr && mbo->Properties["Dependent"]->Value != nullptr) { String ^str = (String ^)mbo->Properties["Dependent"]->Value; str = str->Replace("\"",""); String ^splitChar = "="; array<String ^> ^strArr = str->Split(splitChar->ToCharArray()); WqlObjectQuery ^wqlQuery = gcnew WqlObjectQuery("Select * from Win32_PnPEntity where DeviceID = '"+strArr[1]+"'"); ManagementObjectSearcher ^searcher = gcnew ManagementObjectSearcher(wqlQuery); for each (ManagementObject ^usbCont in searcher->Get()) { String ^pnpDeviceID = (String ^)usbCont->Properties["PNPDeviceID"]->Value; splitChar = "\\"; array<String ^> ^pnpDeviceIDArr = pnpDeviceID->Split(splitChar->ToCharArray()); if(pnpDeviceIDArr->Length == 3) { if(pnpDeviceIDArr[0] == "USB") { WqlObjectQuery ^wqlQueryDisk = gcnew WqlObjectQuery("Select * from Win32_DiskDrive where PNPDeviceID LIKE '%"+pnpDeviceIDArr[2]+"%'"); ManagementObjectSearcher ^searcherDisk = gcnew ManagementObjectSearcher(wqlQueryDisk); ManagementObjectCollection ^collectionDisk = searcherDisk->Get(); if(collectionDisk->Count == 0) continue; else if (collectionDisk->Count == 1) { for each (ManagementObject ^disk in collectionDisk) { } } else { return; } } else { return; } } else { return; } } } } } catch (Exception ^ex) { } } </code></pre>
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1. POFloppy noise in C# WMI - Win32_LogicalDisk Class
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1. USBurak Oguz
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