Inverse Descriptor
Every descriptor has an Inverse Descriptor option that is set to false (the default) or true. You can see the Inverse Descriptor option as a listbox below and to the right of the Number of Fields input field in Description tab. The macro language uses the invertmatch attribute of the descriptor element to store this option.
By default this option is false, so that it has no effect on the evaluation of the descriptor.
If this setting is true, then the macro runtime inverts the boolean result that it obtains from evaluating the descriptor, changing true to false or false to true.
For example, if the macro runtime determines that a String descriptor is true (the string in the descriptor matches the screen in the application window), but the String descriptor has the Inverse Descriptor option set to true, then the macro runtime changes the String descriptor's result from true to false.