timsneath

#include "windows.h"
#include "Shobjidl.h"

// vtable_start 4
MIDL_INTERFACE("42f85136-db7e-439c-85f1-e4075d135fc8")
IFileDialog : public IModalWindow
{
public:
    virtual HRESULT STDMETHODCALLTYPE SetFileTypes( 
        /* [in] */ UINT cFileTypes,

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// Basic Petzoldian "hello world" Win32 app

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

import 'package:win32/win32.dart';

final hInstance = GetModuleHandle(nullptr);

int mainWindowProc(int hWnd, int uMsg, int wParam, int lParam) {

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final result = MessageBox(
    NULL,
    TEXT("This is one of those messages that nobody will ever read. They'll "
        "just click the default button, and about a millisecond later, "
        "they'll experience a pang of concern as they wonder whether Windows "
        "was giving them one last opportunity to perform a critical task "
        "before all their files were wiped.\n\nWhat even is the difference "
        "between Cancel, Try Again and Continue?"),
    TEXT('Critical system message'),
    MB_ICONEXCLAMATION | // Warning

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// C signature for Win32 API in kernel32.dll:
// BOOL WINAPI SetConsoleCursorPosition(
//   _In_ HANDLE hConsoleOutput,
//   _In_ COORD  dwCursorPosition
// );

typedef nativePrototype = Int32 Function(
    IntPtr hConsoleOutput, Int32 dwCursorPos);
typedef dartPrototype = int Function(int hConsoleOutput, int dwCursorPos);

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import 'dart:math' as math;

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/gestures.dart';

const double kTwoPi = 2 * math.pi;

class SectorConstraints extends Constraints {
  const SectorConstraints({

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int error() {
  try {
    return 0;
  } finally {
    print('finally entered');
  }
}

void main() {
  try {

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// struct XrApplicationInfo {
//   char applicationName[128]; // 128 bytes
//   uint32_t applicationVersion; // 4 bytes
//   char engineName[128]; // 128 bytes
//   uint32_t engineVersion; // 4 bytes
//   XrVersion apiVersion; // assume this is a uint64_t, i.e. 8 bytes
// };
class XrApplicationInfo extends Struct {
  Pointer<Utf8> get applicationName => addressOf.cast<Utf8>();

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typedef MessageBoxNative = Int32 Function(
    IntPtr hWnd, Pointer<Utf16> lpText, Pointer<Utf16> lpCaption, Int32 uType);
typedef MessageBoxDart = int Function(
    int hWnd, Pointer<Utf16> lpText, Pointer<Utf16> lpCaption, int uType);

final user32 = DynamicLibrary.open('user32.dll');
final win32MessageBox =
    user32.lookupFunction<MessageBoxNative, MessageBoxDart>('MessageBoxW');

void showMessageBox(String message, String caption) => win32MessageBox(

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// msgbox.dart

// Demonstrates a simple example of calling a Win32 API directly from Dart code.
// This sample relies on the ffi package. Download these two files to an empty
// directory and run `pub get` to download the ffi package prior to running this
// example.

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

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  String numToString(BigInt number) {
    final buf = StringBuffer();

    for (var v = 0; v < 8; v++) {
      final charCode = (number & BigInt.parse('0xFF' + ('00' * v))) >> v * 8;
      buf.write(String.fromCharCode(charCode.toInt()));
    }
    return buf.toString();
  }