The Tcl Windows API (TWAPI) extension provides Tcl bindings to the Windows API.

The extension provides access to the Windows API at two levels. A direct interface to the supported Windows API is provided where the Tcl commands directly map to Windows functions as described in Microsoft Windows SDK. The recommended interface is a higher level interface that is more convenient, powerful and much easier to use than the raw Windows API.

In combination with the built-in facilities in Tcl, TWAPI makes it possible to write a wide variety of Windows applications ranging from desktop applications to web servers running as Windows services. See Windows Inspection Tool Set for an example of Tcl/TWAPI based application.

TWAPI is open source released under a BSD license.

Documentation

• Current release: 5.0
• Older versions: 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.1 3.0 2.2 2.1 2.0 1.1
• Changelog
• Online chapters from Tcl Programming for Windows

Downloads and source code

• TWAPI download page
• SourceForge project page
• Mercurial source repository