choiceIsSelected

The function returns true if the item (identified by 'itemIndex') is selected in choice group (identified by 'choiceID').

  var choiceGroupID: integer;
      NY, LA: integer;
  begin
    showForm;
    choiceGroupID := formAddChoice('Where do you live?', CF_EXCLUSIVE);
    NY := choiceAppendStringImage(choiceGroupID, 'New York', loadImage('/NY.png'));
    LA := choiceAppendStringImage(choiceGroupID, 'Los Angeles', loadImage('/LA.png'));
    if choiceIsSelected(choiceGroupID, NY) then 
      formAddString('New York');
    else
      formAddString('Los Angeles');
  end.

See also: formAddChoice