Using the "uses" statement in Inno Setup Code section

Question

I am trying to use the uses statement to implement something like in the following example:

uses Process;
...
var s : ansistring;
...
if RunCommand('/bin/bash',['-c','echo $PATH'],s) then
   writeln(s);

The uses statement causes an error during compilation. Any idea why?

Answer 1

There's no uses statement in the Inno Setup/Pascal Script.

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You can use only the functions listed in Inno Setup documentation.

To add new functions, you have two options:

• import them from a DLL like:

  procedure MyDllFunc(hWnd: Integer; lpText, lpCaption: AnsiString; uType: Cardinal);
  external 'MyDllFunc@files:MyDll.dll stdcall';
  

• include them from another file using the #include preprocessor directive.

  #include "MyFunctions.pas"
  

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Anyway, to answer your real question, use the Exec function.

To collect an output of the executed command, see How to get an output of an Exec'ed program in Inno Setup?