single-instance

Possible Duplicate: What is the correct way to create a single instance application? How can I check if my application is already open? If my application is already running, I want to show it instead of opening a new instance. CharithJ [DllImport("user32.dll")] private static extern Boolean ShowWindow(IntPtr hWnd, Int32 nCmdShow); static void Main() { Process currentProcess = Process.GetCurrentProcess(); var runningProcess = (from process in Process.GetProcesses() where process.Id != currentProcess.Id && process.ProcessName.Equals( currentProcess.ProcessName, StringComparison.Ordinal) select

Is there a way to let gVim only run a single instance, so that when a new file is opened with it it's automatically opened in a new tab in the currently running instance? I know you can do that by passing --remote-tab-silent but I want to configure gvim so that this becomes the default behavior. i.e. I want to type gvim filename and make it act as if I passed the --remote-tab-silent option to it. gVim 7.2 Edit I'm on windows (vista) dbr If you are using the bash shell (on Linux/OS X/using Cygwin) is to add you ~/.bashrc file: gvim () { command gvim --remote-silent "$@" || command gvim "$@"; }

I've a C# application that displays a login form when launched and displays the main form after users are authenticated. I used Mutex to restrict that only one instance of my application runs. And, this works fine for only the Login form. Once the main form is displayed, it doesn't restrict users from reopening the Login form. I was looking for a solution by which the Login screen couldn't be displayed once the main form is already opened. Here is my Program.cs [STAThread] static void Main() { bool mutexCreated=true; using (Mutex mutex = new Mutex(true, "eCS", out mutexCreated)) { if

I'm working an application of which only one instance must exist at any given time. There are several possibilities to accomplish this: Check running processes for one matching our EXE's name (unreliable) Find the main window (unreliable, and I don't always have a main window) Create a mutex with a unique name (GUID) The mutex option seems to me the most reliable and elegant. However, before my second instance terminates, I want to post a message to the already running instance. For this, I need a handle to the thread (or the process) that owns the mutex. However, there seems to be no API

I'd like Activities on my application's Activity stack to only have one instance. I have several screens which are ListActivities and I'd like to not go through the pain and suffering of updating the lists in a previous instance of the ListActivity when another instance of that ListActivity is changed (added to, edited, removed from, etc) (or is there an easy way to do this?). Note: I've read that singleTop will accomplish this (though it destroys the Activity if you hit the back button), but it does not work. I have a menu and if I go to my Inbox screen, then I go to my QuickList screen, and