Willows Toolkit

                                Overview

   ENABLING YOUR MICROSOFT® WINDOWS® APPLICATIONS TO RUN ON UNIX® AND
                               MACINTOSH®

The Cross-Platform Challenge

Developing applications which can run on multiple platforms, such as
Microsoft Windows, UNIX or Macintosh systems, poses a real challenge to
the software development community today. End users today expect to have
applications available on many platforms, matching their heterogeneous
hardware infrastructure. They also expect to have versions of your
software introduced on all operating systems simultaneously.

The software challenge today is to develop and simultaneously introduce
high quality applications on all popular platforms. The use of a single
source tree using a standardized API, that has a proven track record is
one strategy that can be used, but until now has lacked a viable
cross-platform implementation of a sufficiently robust API.

Your solution is to develop to the de facto industry standard: the
Windows API. This environment provides not only the broadest selection
of development tools, it also caters directly to the largest segment of
potential customers for your products. But how do you get from there to
other environments, such as UNIX, Macintosh or even yet-to-be-developed
systems? You use The Willows Toolkit for UNIX and Macintosh and embedded
systems.

The Willows Solution

Willows Software offers the Willows Toolkit for migrating and developing
Windows applications on alternative platforms. The Willows Toolkit
consists of the Willows Twin Libraries and Tools necessary to support
Windows applications on platforms other than the traditional
Windows-based PC. The Willows Twin Libraries have been released in
source form over the internet with the GNU Library Public License. We
are committed to developing and supporting the Willows Twin Libraries on
Linux, and by releasing the full sources of the Willows Twin Libraries,
will actively encourage and support efforts by developers to support the
software on any platform.

Supported Features

Windows APIs (16- and 32-bit)

MDI (Multiple Document Interface)

Windows 3.x Common Dialogs

   * Animation
   * Choose Color
   * Choose Font
   * Find
   * Replace
   * Print
   * Open File
   * Save File

Windows 32 Custom Controls

   * Drag List
   * Header Controls
   * Image List
   * List View
   * Progress Bar
   * Property Sheet
   * Status Windows
   * Tab Controls
   * Tool Bars
   * Tooltips Controls
   * Trackbars
   * Treeview Controls
   * Up-Down Controls

Communication

   * WinSock
   * WNET
   * DDEML
   * Serial Driver

Diagnostic Tools

   * API Profiling
   * Symbolic Debugger
   * Binary Emulation

Clipboard Operations, Metafiles. Registration Database

Support for .ini, .hlp, and .rc Files

MFC 4 Support

Development Tools

   * Resource Compiler
   * TwinHelp Help File Viewer
   * Graphical Configuration Tool

Willows Supported Platforms

The Willows Toolkit will be developed and tested under the Linux
operating system. The cross-platform nature of the software allows us to
support the software on RISC architectures as well as the traditional
X86 architecture. The software has been designed to use the minimal
functionality afforded by the operating system, to make it possible to
be supported on a wide range of platforms. The graphical user interface,
GUI, has been developed using the X11 toolkit, which is available on a
wide range of platforms, to further ensure the successfull deployment of
the Willows Toolkit on a wide range of platforms and architectures.

The Future for the Willows Twin Libraries

The software will be actively developed, and supported with frequent
updates and bug fixes available on this site. Active participation in
news groups and mailing lists will ensure that feedback and comments
from the development community are encorporated into the software.

As the Win32 API advances, we will make every attempt to keep up with,
and support those features that applications developers use and need to
be able to provide their applications on multiple platforms. For those
developers that choose to migrate the Willows Twin Libraries to
additional platforms, we will provide active support and incorporate the
features and functions they require to ensure that the Willows Twin
Libraries remain the standard for cross-platform development and
deployment of Windows (tm) applications.

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Revised: September 15, 1997