moroccupy.blogg.se - Another instance of this application is already running

So to implement this functionality, all you need to do is, before you create a new instance of your application, get all the running processes and check the names of those processes with the currently running process. Note the words “gets/returns” in the preceding bullet points. They do not create new instances of the Process class.

NOTE: It is very important to note here that these methods simply get the already existing and running instances of the processes. Now if you call this method for “Chrome.exe”, you will get an array of Process components each having all the details of one chrome.exe process. So for example, if you have the Chrome browser running with multiple tabs open, then you can see in the Task Manager that there are as many number of “Chrome.exe” processes running as there are tabs in your browser.

GetProcessesByName(string process_name) returns an array of Process components that are currently running in the local system with the specified process name, process_name.

That means that if we call this method from our app (which is what we'll do shortly), the method returns a Process component that is linked to our app's process.

GetCurrentProcess() basically gets a Process component and links it to the current running process from which this method was called.

These methods pretty much do exactly what they are named. Some static methods provided by the Process class are GetCurrentProcess() and GetProcessesByName(string process_name). The main class used here is the Process class that is a part of the System.Diagnostics namespace. The Process class provides access to some local and also remote processes and can be used to start/stop these processes. This article will show how you can implement that in your Windows application using C#.

We all must have observed some time or the other that when you try to open an application that is already running, you get a pop-up that says, “Another instance of this application is already running” or something like that.