/// <summary>
/// Register a callback device change event function to be called when a device change event (e.g. change of name, device added) occurs
/// </summary>
/// <param name="deviceEventFunc">Callback function to be called</param>
/// <param name="obj">Context object that will be echoed back when function is called. Only the object when the first function is registered will be used. Set to null if not used.</param>
/// <returns>Callback event id</returns>
public unsafe int tdRegisterDeviceChangeEvent(DeviceChangeEventCallbackFunction deviceChangeEventFunc, Object obj)
{
int returnValue = 0;
if (deviceChangeEventList.Count == 0)
{
//first added, register with dll too
//only the context object of the first event will be registered
UnmanagedImport.DeviceChangeEventFunctionDelegate deviceChangeEventFunctionDelegate = new UnmanagedImport.DeviceChangeEventFunctionDelegate(deviceChangeEventFunction);
registeredDeviceChangeEventFunctionId = UnmanagedImport.tdRegisterDeviceChangeEvent(deviceChangeEventFunctionDelegate, (void *)null);
GC.Collect();
callbackFunctionReferenceList.Add(registeredDeviceChangeEventFunctionId, deviceChangeEventFunctionDelegate);
}
++lastEventID;
returnValue = lastEventID;
DeviceChangeEventFunctionContext deviceChangeEventFuncContext = new DeviceChangeEventFunctionContext();
deviceChangeEventFuncContext.changeEventCallbackFunc = deviceChangeEventFunc;
deviceChangeEventFuncContext.context = obj;
deviceChangeEventFuncContext.callbackId = returnValue;
deviceChangeEventList.Add(returnValue, deviceChangeEventFuncContext);
return(returnValue);
}
/// <summary>
/// Register a callback device change event function to be called when a device change event (e.g. change of name, device added) occurs
/// </summary>
/// <param name="deviceEventFunc">Callback function to be called</param>
/// <param name="obj">Context object that will be echoed back when function is called. Only the object when the first function is registered will be used. Set to null if not used.</param>
/// <returns>Callback event id</returns>
public unsafe int tdRegisterDeviceChangeEvent(DeviceChangeEventCallbackFunction deviceChangeEventFunc, Object obj)
{
int returnValue = 0;
if (deviceChangeEventList.Count == 0)
{
//first added, register with dll too
//only the context object of the first event will be registered
UnmanagedImport.DeviceChangeEventFunctionDelegate deviceChangeEventFunctionDelegate = new UnmanagedImport.DeviceChangeEventFunctionDelegate(deviceChangeEventFunction);
registeredDeviceChangeEventFunctionId = UnmanagedImport.tdRegisterDeviceChangeEvent(deviceChangeEventFunctionDelegate, (void*)null);
GC.Collect();
callbackFunctionReferenceList.Add(registeredDeviceChangeEventFunctionId, deviceChangeEventFunctionDelegate);
}
++lastEventID;
returnValue = lastEventID;
DeviceChangeEventFunctionContext deviceChangeEventFuncContext = new DeviceChangeEventFunctionContext();
deviceChangeEventFuncContext.changeEventCallbackFunc = deviceChangeEventFunc;
deviceChangeEventFuncContext.context = obj;
deviceChangeEventFuncContext.callbackId = returnValue;
deviceChangeEventList.Add(returnValue, deviceChangeEventFuncContext);
return returnValue;
}
