Changing component class at run-time on demand

Question

My Question is similar to the idea here: Replacing a component class in delphi.
But I need to change a specific component(s) class on demand.
Here is some p

Answer 1

There's no automatic way to do that, but you could try something like this:

procedure MakeSuperImageList(var ImageList: TImageList);
var
  new: TImageList;
begin
  if ImageList is TSuperImageList then
    Exit;
  new := TSuperImageList.Create(ImageList.Owner);
  new.Assign(ImageList);
  ImageList.Free;
  ImageList := new;
end;

Depending on how Assign is implemented, it may not quite work as expected, but you can override Assign or AssignTo on TSuperImageList to get the desired behavior.