messaging

how to send typing messages via WM_KEYBOARD_LL hook procedure

Hi there~ I'm trying to send a duplicate message to an editbox window in this code: extern "C" HOOK_DLL_API LRESULT CALLBACK GetMsgHookProc(int nCode, WPARAM wParam, LPARAM lParam) { if (nCode < 0) { CallNextHookEx(gMsgHook, nCode, wParam, lParam); } KBDLLHOOKSTRUCT *lpk = (KBDLLHOOKSTRUCT*) lParam; ...

.NET and Messaging

I keep hearing about MSMQ and Biztalk for message processing, but I'm not entirely sure what this means. When these technologies are in place, what problems are messaging and these technologies addressing? ...

Recommendations for email packages

I want to provide some type of email type functionality to the users of my system. Basically their own web-client inbox and the ability to do peer-to-peer messaging (emailing). I dont see this doing a lot of interaction with outside mail providers, mostly just internal users of the system. Can someone give me pointers as to what open so...

Always ensure only last 10 messages in ActiveMQ Topic.

We have an issue in ActiveMQ where we have a huge number of messages not dropping off topics. The topics are set to non-persistent, non-durable. Our Activemq.xml file is <beans> <broker xmlns="http://activemq.apache.org/schema/core" useJmx="false" persistent="false"> <!-- <persistenceAdapter> <journaledJDBC journalLogFile...

Two-Way Messaging and Matching a Response to an Outbound Message

Hi Group, now that I've resolved my previous issue with clickatell: http://stackoverflow.com/questions/2195200/impementing-clickatell-callback-in-asp-net-using-c-net I have signed up for clickatell Two-way Messaging and I'm waiting for clickatell to assign a Virtual Mobile Number (VMN). Unfortunately, I have just read on a clickatell...

Iphone -- push a view controller onto the navigation stack when a button is clicked in a UITableViewCell

When a button is pushed in one of my app's table view cells, I need to push a certain view controller onto the navigation stack. This could be done by using an instance of NSNotification to inform the table view's controller of the button press. But that would be awfully heavyweight, especially since selections in a tab bar in the app ...

When to shut down message processing in case of queue / database failure?

This is more of a best practice question for the common case of an application receiving messages, persisting them to a database, and possibly sending messages as a result. Assume transactionality sorts out atomic commit; what is a good policy on when to shut the application down altogether? If the database fails, the application could...

Options for Non-Locking Messaging from within a SQL Server Transaction

I maintain a SQL Server-based application that requires us to send notifications of certain database changes to connected clients. These clients are fat-client C++ apps with high-bandwidth connectivity to the server. Up until this point, we've been using a dedicated messaging table in SQL Server which is updated via triggers on the rel...

What is the best Java based ESB Solution available?

I know there are similar questions on this topic, but none of them answers my particular questions correctly. We are in the phase of choosing a new ESB provider for our enterprise, our main purpose of choosing a ESB will be for using it as B2B with partners Messaging Orchestration Transformation Messaging and scheduling And other ge...

Writing to SQL Server using MessageQueue from web application

Hi Folks, I have to write some information to SQL Server from a web application. But to minimize the delay I want it to be asynchronous operation using Message Queue. I can create a Queue and post a Message (xml serialized object to be stored) to the queue. What do I need to do to write that message from Queue to database? ...

Observe metadata operations in RabbitMQ

I want to send a message whenever RabbitMQ creates or deletes a queue, exchange or binding. Is this feasible from a client API? What about as a plug-in? ...

IPC between multiple processes on multiple servers

Let's say you have 2 servers each with 8 CPU cores each. The servers each run 8 network services that each host an arbitrary number of long-lived TCP/IP client connections. Clients send messages to the services. The services do something based on the messages, and potentially notify N>1 of the clients of state changes. Sure, ...

Building gearman type application using RabbitMQ

Hi, I'm looking for a general overview of best practice to implement a "job allocation" system like Gearman using RabbitMQ messaging system. So basically I'd have something reading the queue and forking? instances to run a job? Any insight is appreciated. ...

Avoiding polling on services like Heroku and Google App Engine?

I do not think there's a way to do this but I thought I'd ask to see what workarounds people are using to avoid polling on Heroku and/or GAE. How are you sending out notifications in somewhat real-time from these apps? ...

Use WCF to implement services according to industry standard?

Hi. I am looking for a proper framework to implement the (web)service tier in .NET. I am a little bit familiar with WCF and wondering, if it can be customized the way I want it. 1)There is an industry standard for messages to be sent/recieved by the system, which defines the operations, types used, etc. It is XML based. It requires all ...

how do I handle messages asynchronously, throwing away any new messages while processing?

I have a C# app that subscribes to a topic on our messaging system for value updates. When a new value comes in, I do some processing and then carry on. The problem is, the updates can come faster than the app can process them. What I want to do is to just hold on to the latest value, so I don't want a queue. For example, the source publ...

Message Translation Between Systems

I find that most of my work involves creating shims so that different systems can communicate with each other. Is there any software solutions that handle this. I don't want to make my own. For example if we received a message like { a: 'abc', b: 1 } from System1, we might want to send { a: f('abc'), c: 'System1'} to System2. Know of...

Is there any way, short of "copy and paste inheritence" to share a .net class with a Silverlight app?

I have a project in two parts: a Silverlight front end and a WCF duplex service. Ideally, I would like to pass a message of a custom type (call it TradeOffer) from the WCF service to be consumed by the Silverlight application. When I try to, I get an error that indicates I can't pass an object of an unknown type across the wire like tha...

telit gm862-gsm in visual studio

hey guys i am trying to set up an alarm system so that if the alarm or doorbell go off then a test is sent to my phone, im using the telit gm862-gsm to send the texts and also know how to code my home interface board using c# in visual studio but im unsure how to set the code to send the text one the alarm goes off, im currently using th...

What happens when I subscribe to a message using NServiceBus?

When I subscribe as the recipient of a certain type of message using NServiceBus Bus.Subscribe<MyMessage>() What am I actually doing? Am I specifying that a particular method on the recipient type will be invoked upon message receipt? If so, within what context does the method run - in a static context, or within the context of a new'...