I would like to catch all the inputs and output of a commandline program (namely, GDB, but currently changed to ls or cat for simplicity) and redirect it into a file, for later analysis. I couldn'...

I've a web page (being displayed in a browser, NOT a WebView), and I'd like to pass some data (using http POST for instance) to a regular android app. I only need the app to be launched and fed wi...

I'm trying to intercept the openat() system call on Linux using a custom shared library that I can load via LD_PRELOAD. An example intercept-openat.c has this content: #define _GNU_SOURCE #include...

I'm trying to print out the body of a HTTP response using Python. Here is my code sofar: from twisted.web import proxy, http from twisted.internet import reactor from twisted.python import log im...

Can I intercept a method call in Objective-C? How? Edit: Mark Powell's answer gave me a partial solution, the -forwardInvocation method. But the documentation states that -forwardInvocation is onl...

I am writing an application for which I need to intercept some filesystem system calls eg. unlink. I would like to save some file say abc. If user deletes the file then I need to copy it to some ot...

I'd like to intercept the WM_DELETE_WINDOW message that is posted to a certain selection of windows that an application I'm writing (AllTray), so that I can act on it instead of the application rec...

I have a form. This form submits via POST to an iframe, that, in turn, has the request processed and, depending on the result, a javascript is executed that changes the parent's content according t...

I would like to know is there any way I create an application which can intercept all the audio that is being played back on the computer, so I can process the audio (apply some effect) and then pa...

I want to write a vbscript that will wait for windows shutdown and intercept to carry out proper action before shutting down. I want this to be in vbscript since am using it for administration.

I am trying to develop a C# application that will intercept an outgoing Http request and return a result to an old system. We have a legacy system that makes an Http request to a discontinued...

I'd like to use to a custom exception to have a user-friendly message come up when an exception of any sort takes place. What's a good straightforward way of doing this? Are there any extra precau...

I am wondering if anyone knows of tools or techniques to automatically inject common faults into a running .NET program. Stuff like... Randomly inject an OutOfMemoryException upon allocation Rand...

Is there a way to make a Firefox plugin intercept certain requests and respond to them without hitting the network? Example: every time the browser is about to request http://www.example.com/page....

In a script a method receives a parameter of type File, and sends it to the constructor of File. This blows up because File doesn't have a constructor that takes another file as a parameter. How c...

I want to imitate a normal python list, except whenever elements are added or removed via slicing, I want to 'save' the list. Is this possible? This was my attempt but it will never print 'saving'....

Ruby has method_missing , Python has getattr. Does Boo offer something I can use to intercept method calls?