/// <summary> /// Handles the DeviceArrived event of the usbDetector control. /// </summary> /// <param name="sender">The source of the event.</param> /// <param name="e">The <see cref="StickFactory.DriveDetectorEventArgs"/> instance containing the event data.</param> /// <remarks>Documented by Dev08, 2008-10-08</remarks> void usbDetector_DeviceArrived(object sender, DriveDetectorEventArgs e) { //if (!processStarted) return; DriveInfo drive = new DriveInfo(e.Drive); if (drive.DriveType == DriveType.Removable) { AddDeviceToList(e.Drive, "Ready"); pluggedDrives.Add(e.Drive); e.HookQueryRemove = true; if (loadingSuccessful && processStarted) { usbStickWriter.AddUsbStick(drive); } } }
/// <summary> /// Handles the QueryRemove event of the usbDetector control. /// </summary> /// <param name="sender">The source of the event.</param> /// <param name="e">The <see cref="StickFactory.DriveDetectorEventArgs"/> instance containing the event data.</param> /// <remarks>Documented by Dev08, 2008-10-08</remarks> void usbDetector_QueryRemove(object sender, DriveDetectorEventArgs e) { ChangeDeviceTextFromList(e.Drive[0], "Unmounting..."); }
/// <summary> /// Handles the DeviceRemoved event of the usbDetector control. /// </summary> /// <param name="sender">The source of the event.</param> /// <param name="e">The <see cref="StickFactory.DriveDetectorEventArgs"/> instance containing the event data.</param> /// <remarks>Documented by Dev08, 2008-10-08</remarks> void usbDetector_DeviceRemoved(object sender, DriveDetectorEventArgs e) { //if (!processStarted) return; pluggedDrives.Remove(e.Drive); RemoveDeviceFromList(e.Drive); }
/// <summary> /// Message handler which must be called from client form. /// Processes Windows messages and calls event handlers. /// </summary> /// <param name="m"></param> public void WndProc(ref Message m) { int devType; char c; if (m.Msg == WM_DEVICECHANGE) { // WM_DEVICECHANGE can have several meanings depending on the WParam value... switch (m.WParam.ToInt32()) { // // New device has just arrived // case DBT_DEVICEARRIVAL: devType = Marshal.ReadInt32(m.LParam, 4); if (devType == DBT_DEVTYP_VOLUME) { DEV_BROADCAST_VOLUME vol; vol = (DEV_BROADCAST_VOLUME) Marshal.PtrToStructure(m.LParam, typeof(DEV_BROADCAST_VOLUME)); // Get the Drive letter c = DriveMaskToLetter(vol.dbcv_unitmask); // // Call the client event handler // // We should create copy of the event before testing it and // calling the delegate - if any DriveDetectorEventHandler tempDeviceArrived = DeviceArrived; if (tempDeviceArrived != null) { DriveDetectorEventArgs e = new DriveDetectorEventArgs(); e.Drive = c + ":\\"; tempDeviceArrived(this, e); // Register for query remove if requested if (e.HookQueryRemove) { // If something is already hooked, unhook it now if (mDeviceNotifyHandle != IntPtr.Zero) { RegisterForDeviceChange(false, null); } RegisterQuery(c + ":\\"); } } // if has event handler } break; // // Device is about to be removed // Any application can cancel the removal // case DBT_DEVICEQUERYREMOVE: devType = Marshal.ReadInt32(m.LParam, 4); if (devType == DBT_DEVTYP_HANDLE) { // TODO: we could get the handle for which this message is sent // from vol.dbch_handle and compare it against a list of handles for // which we have registered the query remove message (?) //DEV_BROADCAST_HANDLE vol; //vol = (DEV_BROADCAST_HANDLE) // Marshal.PtrToStructure(m.LParam, typeof(DEV_BROADCAST_HANDLE)); // if ( vol.dbch_handle .... // // Call the event handler in client // DriveDetectorEventHandler tempQuery = QueryRemove; if (tempQuery != null) { DriveDetectorEventArgs e = new DriveDetectorEventArgs(); e.Drive = mCurrentDrive; // Drive which is hooked tempQuery(this, e); // If the client wants to cancel, let Windows know if (e.Cancel) { m.Result = (IntPtr)BROADCAST_QUERY_DENY; } else { // Change 28.10.2007: Unregister the notification, this will // close the handle to file or root directory also. // We have to close it anyway to allow the removal so // even if some other app cancels the removal we would not know about it... RegisterForDeviceChange(false, null); // will also close the mFileOnFlash } } } break; // // Device has been removed // case DBT_DEVICEREMOVECOMPLETE: devType = Marshal.ReadInt32(m.LParam, 4); if (devType == DBT_DEVTYP_VOLUME) { devType = Marshal.ReadInt32(m.LParam, 4); if (devType == DBT_DEVTYP_VOLUME) { DEV_BROADCAST_VOLUME vol; vol = (DEV_BROADCAST_VOLUME) Marshal.PtrToStructure(m.LParam, typeof(DEV_BROADCAST_VOLUME)); c = DriveMaskToLetter(vol.dbcv_unitmask); // // Call the client event handler // DriveDetectorEventHandler tempDeviceRemoved = DeviceRemoved; if (tempDeviceRemoved != null) { DriveDetectorEventArgs e = new DriveDetectorEventArgs(); e.Drive = c + ":\\"; tempDeviceRemoved(this, e); } // TODO: we could unregister the notify handle here if we knew it is the // right Drive which has been just removed //RegisterForDeviceChange(false, null); } } break; } } }