Delphi: Read out folder of our own application

Delphi and Lazarus make it easy for us to get the directory, in which our application exe file is saved. This line of code gives us the path of our program:

// path is a string
path := ExtractFilePath(ParamStr(0));

ParamStr(0) contains the full path and file name of our application. With the help of ExtractFilePath(), we extract only the path.

Alternatively, you can also use Application.Exename instead of ParamStr(0). Application.Exename also contains the complete path and the filename of the application.