Finding the path of a file bundled with Orx's config files and image can be non-trivial without Orx's utilities in a platform independent manner.

const orxSTRING zLocation = orxResource_Locate("Magic", "Awesome.mag");
// zLocation looks like "file:/path/to/Awesome.mag" if found
if(zLocation)
{
  const orxSTRING zPath = orxString_SearchChar(zLocation, orxRESOURCE_KC_LOCATION_SEPARATOR) + 1;
  // zPath looks like /path/to/Awesome.mag
}

[Resource]
Magic = @.Config ; Define a custom resource group "Magic"