Apply the settings to the App without having to close it

[Johansy 2]

Hello, in a new project in which I work, I need to save some of the options of the software in an ini file, but the problem is that to observe the change in the interface of the aplication after applying the configuration to the ini file, I need to close it and reopen it. How can I apply the changes to the ini file and that they are reflected in the interface without having to close and open the software?. 

[David Heffernan 2406]

Write the code to apply the changes when they are made, and not just at load time. 

[Fr0sT.Brutal 901]

CheckSettingsTimerOnTimer:
  if SettingsFileModifiedDate > LastCheckDate then
    ReadAndApplySettings