Difference between revisions of "Interfaces"
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(Distinguish from "interface".) |
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| − | Interfaces can be utilized as an alternative solution to the need of multiple inheritance, which Object Pascal currently does not support. | + | Interfaces can be utilized as an alternative solution to the need of multiple inheritance, which Object Pascal currently does not support. These are distinct from the '''interface''' reserved word. |
==Full example program== | ==Full example program== | ||
Revision as of 13:40, 25 February 2020
Interfaces can be utilized as an alternative solution to the need of multiple inheritance, which Object Pascal currently does not support. These are distinct from the interface reserved word.
Full example program
program project1;
{$mode delphi}
{$interfaces corba}
type
IMyDelegate = interface
procedure DoThis (value: integer);
end;
TMyClass = class (TInterfacedObject, IMyDelegate)
procedure DoThis (value: integer);
end;
procedure TestDelegate;
var
delegate: TMyClass;
intfdelegate: IMyDelegate;
begin
delegate := TMyClass.Create;
intfdelegate := IMyDelegate(delegate);
intfdelegate.DoThis(1);
end;
{ TMyClass }
procedure TMyClass.DoThis(value: integer);
var
Str: string;
begin
WriteLn('Success!!! Type <enter> to continue');
ReadLn(Str);
end;
begin
TestDelegate;
end.
