I need Name of the active application

[karmba_a]

Hello

my program works in the background of the system

And I need to know the name of the active application
If opened calculator shows a text message containing name calculator

 

[eww245]

Hello

my program works in the background of the system

And I need to know the name of the active application
If opened calculator shows a text message containing name calculator

If this is for Device, you can use SystemState ActiveApplication otherwise on the Desktop registry there is a key for that, but I don't know where.