Incompatible types 'String' and 'TEdit'

Question

this seems like a really simple one, but i'm new to delphi and google has not turned up anything...

i have an Edit field on my form and i have created a component which has a function of the form:

type
    TComms = class(TComponent)
  published
    function BuildPacket(const APacketData: string): string;

now i pass the output of the edit form to the function like so:

procedure TForm1.xxxxx(Sender: TObject)
var
  NewPacket: string;
begin
  NewPacket := Comms.BuildPacket(EditVal);
end;

and i get the error

Incompatible types 'String' and 'TEdit'

should i convert the Edit value to a string? or should my component do the conversion? i don't want to make the input a property of the component or anything - just an argument to the BuildPacket function.

Answer 1

Yeah, you're passing the edit box itself, and not the value of it. Try:

NewPacket := Comms.BuildPacket(EditVal.text);