Initial commit of Windows 1 Example Application.

.gitignore

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+# Ignore compiled binaries
+*.exe
+*.map
+*.obj
+*.res

AboutDlg.c

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+#include <windows.h>
+#include "aboutdlg.h"
+#include "resource.h"
+#include "globals.h"
+
+/* Dialog procedure for our "about" dialog */
+BOOL FAR PASCAL AboutDialogProc(hwndDlg, uMsg, wParam, lParam)
+HWND hwndDlg;
+unsigned uMsg;
+WORD wParam;
+LONG lParam;
+{
+  switch (uMsg)
+  {
+    case WM_COMMAND:
+    {        
+      WORD id = wParam;
+
+      switch (id)
+      {
+        case IDOK:
+        case IDCANCEL:
+        {
+          EndDialog(hwndDlg, id);
+          return TRUE;
+        }
+      }
+      break;
+    }
+
+    case WM_INITDIALOG:
+      return TRUE;
+  }
+
+  return FALSE;
+}
+
+/* Show our "about" dialog */
+void ShowAboutDialog(owner)
+HWND owner;
+{                  
+  /* Create dialog callback thunk */
+  FARPROC aboutProc = MakeProcInstance(AboutDialogProc, g_hInstance);       
+
+  DialogBox(g_hInstance, MAKEINTRESOURCE(IDD_ABOUTDIALOG), owner, aboutProc);  
+
+  /* Free dialog callback thunk */
+  FreeProcInstance(aboutProc);  
+}

AboutDlg.h

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+#ifndef ABOUTDLG_H
+#define ABOUTDLG_H
+
+/* Dialog procedure for our "about" dialog */
+BOOL FAR PASCAL AboutDialogProc(HWND, unsigned, WORD, LONG);
+
+/* Show our "about" dialog */
+void ShowAboutDialog(HWND);
+
+#endif

Globals.h

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+#ifndef GLOBALS_H
+#define GLOBALS_H
+
+/* Global instance handle */
+extern HANDLE g_hInstance;
+
+#endif

License.txt

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org>

MainWnd.c

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+#include <windows.h>
+#include <string.h>
+#include "mainwnd.h"
+#include "aboutdlg.h"
+#include "resource.h"
+#include "globals.h"
+
+/* Main window class and title */
+static char MainWndClass[] = "Windows 1 Example Application";
+
+/* Window procedure for our main window */
+LONG FAR PASCAL MainWndProc(hWnd, msg, wParam, lParam)
+HWND hWnd;
+unsigned msg;
+WORD wParam;
+LONG lParam;
+{
+  switch (msg)
+  {
+    case WM_COMMAND:
+    {
+      WORD id = wParam;
+
+      switch (id)
+      {
+        case ID_HELP_ABOUT:
+        {
+          ShowAboutDialog(hWnd);
+          break;
+        }
+
+        case ID_FILE_EXIT:
+        {
+          DestroyWindow(hWnd);
+          break;
+        }
+
+        default:
+          return DefWindowProc(hWnd, msg, wParam, lParam);
+      }
+
+      break;
+    }
+
+    case WM_GETMINMAXINFO:
+    {
+      /* Prevent our window from being sized too small */
+      MINMAXINFO *minMax = (MINMAXINFO*) lParam;
+      minMax->ptMinTrackSize.x = 220;
+      minMax->ptMinTrackSize.y = 110;
+
+      break;
+    }
+
+    /* Item from system menu has been invoked */
+    case WM_SYSCOMMAND:
+    {
+      WORD id = wParam;
+
+      switch (id)
+      {
+        case ID_HELP_ABOUT:
+        {
+          ShowAboutDialog(hWnd);
+          break;
+        }
+
+        default:
+          return DefWindowProc(hWnd, msg, wParam, lParam);
+      }
+
+      break;
+    }
+
+    case WM_DESTROY:
+    {
+      PostQuitMessage(0);
+      break;
+    }
+
+    default:
+      return DefWindowProc(hWnd, msg, wParam, lParam);
+  }
+
+  return 0;
+}
+
+/* Register a class for our main window */
+BOOL RegisterMainWindowClass()
+{
+  WNDCLASS wc;
+
+  memset(&wc, 0, sizeof(wc));
+
+  wc.lpfnWndProc   = MainWndProc;
+  wc.hInstance     = g_hInstance;
+  wc.hIcon         = LoadIcon(g_hInstance, MAKEINTRESOURCE(IDI_APPICON));
+  wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
+  wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+  wc.lpszMenuName  = MAKEINTRESOURCE(IDR_MAINMENU);
+  wc.lpszClassName = MainWndClass;        
+
+  return (RegisterClass(&wc)) ? TRUE : FALSE;
+}
+
+/* Create an instance of our main window */
+HWND CreateMainWindow()
+{
+  HWND hWnd;
+  HMENU hSysMenu;
+
+  hWnd = CreateWindow(MainWndClass, MainWndClass, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
+                      320, 200, NULL, NULL, g_hInstance, NULL);
+
+  if (hWnd)
+  {
+    /* Add "about" to the system menu. */
+    hSysMenu = GetSystemMenu(hWnd, FALSE);
+    ChangeMenu(hSysMenu, 0, NULL, 999, MF_APPEND | MF_SEPARATOR);
+    ChangeMenu(hSysMenu, 0, "About", ID_HELP_ABOUT, MF_APPEND | MF_STRING);
+  }
+
+  return hWnd;
+}

MainWnd.h

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+#ifndef MAINWND_H
+#define MAINWND_H
+
+/* Window procedure for our main window */
+LONG FAR PASCAL MainWndProc(HWND, unsigned, WORD, LONG);
+
+/* Register a class for our main window */
+BOOL RegisterMainWindowClass();
+
+/* Create an instance of our main window */
+HWND CreateMainWindow();
+
+/* Minimum and maximum window sizing */
+#ifndef WM_GETMINMAXINFO
+  #define WM_GETMINMAXINFO    0x0024
+
+  typedef struct tagMINMAXINFO
+  {
+    POINT ptReserved;
+    POINT ptMaxSize;
+    POINT ptMaxPosition;
+    POINT ptMinTrackSize;
+    POINT ptMaxTrackSize;
+  } MINMAXINFO;
+#endif
+
+/* Button colour */
+#ifndef COLOR_BTNFACE
+  #define COLOR_BTNFACE 15
+#endif
+
+/* Overlapped window style */
+#ifndef WS_OVERLAPPEDWINDOW
+  #define WS_OVERLAPPEDWINDOW WS_TILED | WS_CAPTION | WS_SYSMENU | WS_SIZEBOX | 0x00010000L | 0x00020000L
+#endif
+
+/* Default window positioning */
+#ifndef CW_USEDEFAULT
+  #define CW_USEDEFAULT ((int)0x8000)
+#endif
+
+#endif

Readme.md

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+# Windows 1 Example Application
+
+## Table of Contents
+
+- [Introduction](#introduction)
+- [Terms of Use](#terms-of-use)
+- [Problems?](#problems)
+- [Changelog](#changelog)
+
+## Introduction
+
+This application is an example 16 bit Windows application written in C. It
+accompanies the
+[Building Win16 GUI Applications in C](http://www.transmissionzero.co.uk/computing/win16-apps-in-c/)
+article on [Transmission Zero](http://www.transmissionzero.co.uk/). The
+application runs under Windows 1 to Windows 3.11, and all versions of Windows NT
+which support Win16 apps (Windows NT 3.1 to at least the x86 version of Windows
+8.1). It does not run under Windows 9x (Windows 95 to Windows ME). The reason
+for this is not known at the moment.
+
+To build the application with Microsoft C, open a command prompt, change to the
+directory containing the Makefile, and run "make Win1App". Note that you will
+need a very old version of the C compiler and Windows SDK to build the
+application. I built it with Microsoft C 4 (not to be confused with Visual C++
+4), but I believe it will compile with Microsoft C 5 as well. It cannot be built
+with newer tools, e.g. Visual C++ 1.52, and I'm not aware of any freely
+available tools you can use to build it.
+
+## Terms of Use
+
+Refer to "License.txt" for terms of use.
+
+## Problems?
+
+If you have any problems or questions, please ensure you have read this readme
+file and the
+[Building Win16 GUI Applications in C](http://www.transmissionzero.co.uk/computing/win16-apps-in-c/)
+article. If you are still having trouble, you can
+[get in contact](http://www.transmissionzero.co.uk/contact/).
+
+## Changelog
+
+1. 2014-11-09: Version 1.0
+  - First release.
+
+Transmission Zero
+2016-08-27

Resource.h

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+#ifndef RESOURCE_H
+#define RESOURCE_H
+
+#define IDI_APPICON                    101
+#define IDR_MAINMENU                   102
+#define IDR_ACCELERATOR                103
+#define IDD_ABOUTDIALOG                104
+#define ID_FILE_EXIT                   40001
+#define ID_HELP_ABOUT                  40002
+
+#ifndef IDC_STATIC
+  #define IDC_STATIC                   -1
+#endif
+
+#ifndef DS_MODALFRAME
+  #define DS_MODALFRAME                0x80L
+#endif
+
+#endif

Resource.rc

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+#include <windows.h>
+#include "resource.h"
+
+/* Win16 application icon */
+IDI_APPICON ICON DISCARDABLE           "App.ico"
+
+/* Our main menu */
+IDR_MAINMENU MENU DISCARDABLE
+BEGIN
+  POPUP "File"
+  BEGIN
+    MENUITEM "Exit",                   ID_FILE_EXIT
+  END
+  POPUP "Help"
+  BEGIN
+    MENUITEM "About",                  ID_HELP_ABOUT
+  END
+END
+
+/* Our "about" dialog */
+IDD_ABOUTDIALOG DIALOG DISCARDABLE 0, 0, 160, 67
+STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
+CAPTION "About"
+BEGIN
+  ICON             IDI_APPICON,IDC_STATIC,7,7,20,20
+  LTEXT            "Windows 1 Example application.",IDC_STATIC,34,7,125,8
+  LTEXT            "�2014 Transmission Zero",IDC_STATIC,34,17,100,8
+  DEFPUSHBUTTON    "OK",IDOK,103,46,50,14,WS_GROUP
+END
+
+/* Our accelerators */
+IDR_ACCELERATOR ACCELERATORS DISCARDABLE
+BEGIN
+  0x41,            ID_HELP_ABOUT,      VIRTKEY, CONTROL, NOINVERT
+END