Read destination directory from ini file during install time in Inno Setup

user_4237309 0
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I need to read a directory path from an ini file at install time.

Under the [Code] section I have defined a function like

function GetDirectoryFromIni: String;
begin
  Result := 
    GetIniString('Directories' , 'Name' ,
      ExpandConstant('{app}')+'\Default_Path\' , 
      ExpandConstant('{app}')+'my_ini_file.ini');
end;

How can I use this function/path/string in the [Files] section?

Something like:

[Files]
Source: "C:\Source_Directory\*.*"; DestDir: "GetDirectoryFromIni"; \
    Flags: ignoreversion

The basic logic is if the user has changed the "Default_Path" from a previous installation I want to adjust to use it, otherwise it uses the default path when the program is first installed.

I cannot seem to define or set a string variable to use the GetDirectoryFromIni result. Can anyone help?

inno-setup
2 Answers
user_8508480

You need to refer to the function in the [Files] section like

[Files]
Source: "C:\Source_Directory\*.*"; DestDir: "{code:GetDirectoryFromIni}"; Flags: ignoreversion

Then it works.

user_42373090
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