Mine

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

 type
  TMzSendInput = function(nInputs: Integer; var Inputs: TInput; cbSize: Integer) : integer ; stdcall;
  TMzInit = function() : integer ; stdcall;
 const
   MzSendInput: TMzSendInput = nil;
   MzInit: TMzInit = nil;
var
  Form1: TForm1;
  DLLHandle: THandle;


implementation

{$R *.dfm}


procedure TForm1.FormCreate(Sender: TObject);
const
  DLLNAme = 'MzBot2.dll';
  MzInit: TMzInit = nil;
begin
DLLHandle := LoadLibrary(DLLNAme);
  if (DLLHandle < HINSTANCE_ERROR) then begin
    raise Exception.Create(DLLNAme + ' libarary can not be loaded or not found. ' +
    SysErrorMessage(GetLastError));
    end
  else begin
   @MzInit := GetProcAddress(DllHandle,'InitMzBot');
   @MzSendInput := GetProcAddress(DllHandle, 'AltSendInput');
   end;
   if not (Assigned(MzSendInput) and Assigned(MzInit)) then
    raise Exception.Create('Function not loaded!');



end;

procedure TForm1.Button1Click(Sender: TObject);
const
   Str: string = 'aaaa';
var
  Inputs: TInput;
  I: Integer;
begin
  Memo1.SetFocus;
  for I := 1 to Length(Str) do
  begin
    Inputs.Itype := INPUT_KEYBOARD;
    Inputs.ki.wVk := Ord(UpCase(Str[i]));
    Inputs.ki.dwFlags := 0;

    MzSendInput(1, Inputs, SizeOf(Inputs));
    Inputs.Itype := INPUT_KEYBOARD;
    Inputs.ki.wVk := Ord(UpCase(Str[i]));
    Inputs.ki.dwFlags := KEYEVENTF_KEYUP;

    MzSendInput(1, Inputs, SizeOf(Inputs));
    Application.ProcessMessages;
    Sleep(80);
  end;
end;


end.