Detecting currently running application.

[chronobyte]

Hello, I was wondering if anybody can help me with this:
I'd like to create an application that is a singleton. If a user try to run another instance while one is still running it will just activate the existing one.
How can I accomplish this?
Is there a way to detect if the same application is already running?

Any help would be appreciated. Thanks!

 

[Guest_imported]

Here is part of your answer:

// this find all the process that have the same
// name as the current process.
Process[] processList = Process.GetProcessesByName( Process.GetCurrentProcess().ProcessName );

if( processList.Length > 1 )
{
// Bring other process to the forground and exit
}

 

[chronobyte]

It works! Thanks a lot =)

 

[Guest_imported]

Just thought I would add a little more:

// Declare this inside the class

[DllImportAttribute( "User32.dll" )]
static extern int FindWindow( String ClassName, String WindowName );
[DllImportAttribute( "User32.dll" )]
static extern int SetForegroundWindow( int hWnd );

// Then do something like this inside you code
int hWnd = FindWindow( null, "Untitled - NotePad" );
if( hWnd > 0 )
{
SetForegroundWindow( hWnd );
}