[Nora]

Код:

unit FormDll;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
   StrNew:String[255];
implementation
function ChangeString(str:string):string;
external 'PrDll.dll' name 'ChangeString' index 1;

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
  var x:string;
begin
  x:=edit1.Text;
  ChangeString (x);
  ShowMessage(x);
end;

end.


library PrDll;

uses
   ShareMem,
   SysUtils,
   Classes;

{$R *.res}
  function ChangeString(Str:string):string; Export;
  var i,k:byte;

  begin
  k:=0;
for i:=1 to (Length(Str)) do
  begin
    if str[i]=(':') then
        inc(k);
      if k mod 2=0 then
        str[i]:=' ';
  end;
for i:=1 to (Length(Str)) do
  begin
     if str[i]=' ' then
       begin
         Delete (Str,i,1)
       end;
    end;
    result:=str;
end;

exports ChangeString Index 1;
begin
end.