Smart and powerful OCR tools


Warning: WinI2C/DDC is retired, we do not support it anymore.


Direct access to I2C/DDC bus from any Windows application!

WinI2C/DDC is a professional tool that allows you to control display devices in the Windows environment via the DDC/CI protocol. It allows you to send DDC/CI commands via the standard video cable (VGA or DVI) and control all display devices that support the DDC/CI protocol: CRT/LCD monitors, projectors, plasma panels, etc.

 WinI2C/DDC Logo

WinI2C/DDC library is compatible with Windows 2000/XP/2003/Vista/Windows7/Windows8, it supports many types of video chips (nVidia, ATI, Intel, S3, SiS, Matrox, etc) and configurations with several monitors. Also WinI2C/DDC provides a COM interface for all API functions so you can simply use it in VB or such .NET languages as VB.NET or C#. The following Windows 64bit platforms are supported as well: Windows 2003 x64, Windows XP x64, Windows Vista x64, Windows7 x64, Windows8 x64.

WinI2C/DDC is the fastest and cost-effective way to create such software as color calibration solutions or OSD replacement utilities. The WinI2C/DDC library can be very useful in a lot of projects, for example, it can be integrated into any asset management software for providing all necessary information about installed display devices.

 WinI2C/DDC Logo

WinI2C/DDC can also be used for In System Programming (ISP) via VGA/DVI, for example, by OEM monitor manufacturers for updating the firmware of their monitors.

Key features

The WinI2C/DDC API allows you to perform all necessary operations with display devices:

  • Enumerate all installed monitors.
  • Get DDC/CI monitor capabilities.
  • Read EDID (extended display identification data) directly from the monitor. EDID contains basic information about the monitor and its capabilities, including vendor information, maximum image size, color characteristics, factory preset timings, frequency range limits, and character strings for the monitor name and serial number.
  • Read and change such monitor settings as brightness, contrast, screen position, size, color gain, etc.
  • Execute any commands that the display device supports via DDC/CI.

Show the full List of Features of WinI2C/DDC.


The full-featured trial version of the WinI2C/DDC library is available for downloading. It contains detailed documentation as well as examples of applications for various programming languages that will allow you to start working with WinI2C/DDC immediately.

Download a trial version of WinI2C/DDC library.

Our customers are:

Fujitsu Peripherals, Japan
Conrac GmbH, Germany
University of Tennessee, USA
Agfa Graphics NV, Belgium
Lenovo, China
Philips SpA, Italy
Intel, China