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ICO Image Format

The ICO Image Format provides a QImageIOHandler plugin for reading and writing .ico files.

The ICO image format is a commonly used format on Microsoft Windows for storing icons. With this class you can create .ico files from a QImage as well as creating QImages from an .ico file that can be used in your application. This functionality can only be made available as a plugin.

Documentation:

Classes: Examples:

Tested on:

  • Qt 4.3 / Windows XP / MSVC.NET 2003
  • Qt 4.3 / Windows Vista / MSVC.NET 2005
  • Qt 4.3 / Linux / gcc
  • Qt 4.3 / MacOS X 10.4 / gcc

Unsupported platforms:

  • Solaris

Download Commercial Edition:

Only available for Qt Solutions license holders with a valid Support and Maintenance agreement (authentication required).

Changes:

  • 2.4: Various build issues fixed.
  • 2.3: Support reading and writing icons with alpha-channel (partial transparency).
  • 2.2: QImageReader::imageFormat() now returns the correct format string.
  • 2.1: Bugfixes.
  • 2.0: This is a port to Qt 4 of the latest Qt 3 version (1.1).
  • 2.0: Added support for big endian systems.
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