Tactic Devs

Implementing a Single Instance WPF App  use the Mutex Class

Single instance means only one instance is allowed to run

Mutex: Think of a mutex as a special token that only one program can hold at a time. It's like a permission slip that says, "I'm running!"


OnStartup Method: This is a special function that runs when the program starts up.

Creating the Mutex: We create a mutex with a specific name (MyAppName). If this name is already taken by another running instance of our program, we won't be able to create it.

Checking if the Mutex Was Created : We check if we successfully created the mutex (if createdNew is true). If it wasn’t created because another instance of the program already did, we shut down this new instance.

1 year ago (edited) | [YT] | 17