A feature of the Delphi IDE that I learned about only recently is interface completion. Let's say you have got an interface declared like this:
type
IMyInterface = interface
procedure MethodA;
procedure MethodB;
// lots of more methods
procedure MethodZ;
end;
Now you want to write a class that implements this interface:
type
TMyClass = class(TInterfacedObject, IMyInterface)
private // implementation of IMyInterface
// here go all methods that implement IMyInterface
end;
How do you go about declaring all those methods? Up until recently I used copy and paste. This works fine if the interface declaration is in the same unit or at least in a unit to which you have got the source code, even though it is rather inconvenient. There is a much easier way:
type
TMyClass = class(TInterfacedObject, IMyInterface)
private // implementation of IMyInterface
<press ctrl space here>
end;
Pressing ctrl space at the position marked above will give you a list of all methods the interface IMyInterface declares, written in red. You can now select all these methods with Shift-Down and press return. Voila, instant declaration. Now just press Control + Shift + C and you also have got an empty implementation.
To see this and other cool stuff in action, see Steve's demo