SendIput with multiples INPUTs

[JillyTaboga]

The SendInput receive a array of INPUTs, but the example just show cases with one INPUT could anyone show a example with a multi INPUTs, like shift+A?

[ilopX]

// Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// Demonstrates sending input to another window via SendInput()

// ignore_for_file: constant_identifier_names

import 'dart:ffi';

import 'package:ffi/ffi.dart';
import 'package:win32/win32.dart';

const VK_SHIFT = 0x10;
const VK_D = 0x44;

void main() {
  runNotepad();

  sendKeyDown(VK_SHIFT);
  sendKeyDown(VK_D);
  sendKeyUp(VK_D);
  sendKeyUp(VK_SHIFT);

  sendUnicode("art is awesome €");
}

void runNotepad() {
  print('Switching to Notepad and going to sleep for a second.');
  ShellExecute(0, TEXT('open'), TEXT('notepad.exe'), nullptr, nullptr, SW_SHOW);
  Sleep(1000);
}

void sendKeyDown(int virtualKey) {
  final kbd = calloc<INPUT>();
  kbd.ref.type = INPUT_KEYBOARD;
  kbd.ref.ki.wVk = virtualKey;

  final result = SendInput(1, kbd, sizeOf<INPUT>());
  if (result != TRUE) print('Error: ${GetLastError()}');

  free(kbd);
}

void sendKeyUp(int virtualKey) {
  final kbd = calloc<INPUT>();
  kbd.ref.type = INPUT_KEYBOARD;
  kbd.ref.ki.wVk = virtualKey;
  kbd.ref.ki.dwFlags = KEYEVENTF_KEYUP;

  final result = SendInput(1, kbd, sizeOf<INPUT>());
  if (result != TRUE) print('Error: ${GetLastError()}');

  free(kbd);
}

void sendUnicode(String text) {
  for (final code in text.codeUnits) {
    final kbd = calloc<INPUT>();
    kbd.ref.type = INPUT_KEYBOARD;
    kbd.ref.ki.wVk = 0;
    kbd.ref.ki.wScan = code;
    kbd.ref.ki.dwFlags = KEYEVENTF_UNICODE;

    final result = SendInput(1, kbd, sizeOf<INPUT>());
    if (result != TRUE) print('Error: ${GetLastError()}');

    free(kbd);
  }
}