I'm working with flowpanel on Delphi and I noticed that it adds an additional property in objectInspector , control index , to objects inserted in it.
I wanted to know how this is done, if I ever needed the feature, how would a component change the properties of another object without being inherited?
I can not guarantee that it will be what it does, but to add strings and methods to other components without inheritance, just use ClassHelpers (more information on this link )
Note: It adds more properties and methods, but Fields can not be created.
unit StreamHelper;
type
TStreamHelper = class helper for TStream
private
function GetAsByteArray: TByteArray;
procedure SetAsByteArray(const Value: TByteArray);
public
property AsByteArray: Integer read GetAsByteArray write SetAsByteArray;
end;