About site: Graphics/Web/Favicons - Wikipedia: ICO (Icon Image File Format)
Return to Computers also Computers
  About site: http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)

Title: Graphics/Web/Favicons - Wikipedia: ICO (Icon Image File Format) Encyclopedia article providing an overview of the the format.
Tetris With source code in Visual Basic.

Atomic_Orange_Productions Create multimedia art and content development for children's software, interactive toys, television scripts, and series. Based in East Aurora, New York, United States.

Bill_Griswold_Page Researches software engineering: building large, complex systems at reasonable cost and high reliability; especially evolution (e.g., enhancement) of large systems, which is driven by unpredictable ma

All_Editor Audio editor with over twenty effects, records and save directly to MP3/WMA/OGG/VQF/WAV files. Product specifications, screenshots, FAQs, tutorials, and downloads.

Anti-Aging_GHR15_Hormone_Shop Provides health supplements. Includes program features and contact details.

Cybertrails Offering website hosting, design, and dialup services.

  Alexa statistic for http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)





Get your Google PageRank






Please visit: http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)
  Related sites for http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)
    Rumpf,_Ronald Provides technical assistance for creation and modification of MultiValue/Pick applications. Located in Metropolis, Illinois, USA.
    Seven10 Designs custom Flash and slideshow screensavers for any group or person for any occasion.
    Visionics Providers of EDWin XP/2000, a PCB design package with schematic capture, simulation, layout and autorouting.
    RFC_3033 The Assignment of the Information Field and Protocol Identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet Protocol. M. Suzuki. January 2001.
    The_Penguin_Dance! The penguin dance is a great collection of penguins aranged neatly and with some music along the way!
    Fiske_Software Specializes in machine learning software for bioinformatics, customer relationship management (CRM), data mining, character and handwriting recognition, image processing, information retrieval, and N
    Blue_Softs Archive with software downloads for Windows and games. PAD files accepted for submission.
    XHTML_Quick_Reference_Guide,_The Syntax and structure of every XHTML element, organized logically for quick access.
    Open_Motif_Everywhere ICS's Open Motif built from the official Open Group sources. Precompiled binaries available on all popular Linux environments and FreeBSD.
    Xellsoft Specialize in Python programming technology and object oriented databases, develop custom software and offer consulting in the area of internet, data communication, technical and scientific programmin
    AVI_Info_Tip Windows explorer plugin that shows the most useful properties of AVI files by simply moving the cursor over the filename.
    RubyCocoa_Resources Documentation and examples, as digital books, for RubyCocoa, a bridge between Ruby and Objective-C, a way to make desktop programs with Ruby.
    PM_Works_Corporation Multimedia design, web design, interactive DVD and CD-ROM, presentation, music composition and scoring, presentations. Located in Vlorë, Albania.
    Rails_Day_2006 Programming contest, to write an RoR application in one day, on June 17, between 12:00 am Eastern Daylight Time, and 11:59 pm EDT.
    Borges Ruby Web application framework based on Smalltalk Seaside 2, allows linear programming of applications. [Open source]
    BaseCamp_Interactive,_Inc_ Includes web design and development services. Based in Bothell, Washington, United States.
    OutdoorMind Offers web site design, multi-media production, hosting and web promotion. Based in Woodland, California.
    Nomadcode Design, Java, Perl, PHP, content management systems, database development, and hosting. Located in New York, New York, United States.
    Van_Why_Design_Backgrounds Free download of tiled and left border images to use for web page backgrounds, or stationary.
    XVI32 Windows program that includes complete online help and requires less than a megabyte of hard disk space.
This is websites2007.org cache of m/ as retrieved on 2008.10.15 websites2007.org's cache is the snapshot that we took of the page as we crawled the web. The page may have changed since that time.
ICO (icon image file format) - Wikipedia, the free encyclopedia /**/

ICO (icon image file format)

From Wikipedia, the free encyclopedia Jump to: navigation, search ICOFilename extension.icoInternet media typeimage/vnd.microsoft.iconUniform Type Identifiercom.microsoft.icoDeveloped byMicrosoftType of formaticon graphics file formatCURFilename extension.curDeveloped byMicrosoftType of formatcursor graphics file formatThe ICO file format is an image file format used for icons in Microsoft Windows. The CUR file format for cursors is almost identical, as the only differences are the identification byte and a specification of a hotspot in the header.ICO files contain one or more small images at multiple sizes and colour depths.The official IANA registered MIME type for ico files is image/vnd.microsoft.icon. Before this was registered, image/x-icon was the accepted option that complied with the rules of using x- for unregistered tokens. However, many others are seen, including image/ico, image/icon, text/ico, and application/ico. Many web servers do not come configured with a MIME type setting for .ico files, and may send their default MIME type, which might be text/html or text/plain.

Contents

1 Icon sizes, colour depths, and transparency data2 Recommended icon sizes for Windows Vista compatibility3 Icon library4 File structure4.1 Header4.2 Directory5 See also6 External links//

[edit] Icon sizes, colour depths, and transparency data

Originally 32×32 pixels square and using 16 colors, more recent versions of Microsoft Windows support icons at multiple sizes and color depths. Prior to Windows XP, icon images could be any size from 1×1 pixel up to 255×255 pixels (including non-square sizes), and 4-, 8-, 16-, or 24-bit colour depth. However, only 16×16 and 32×32 images at 4- and 8-bit color depths were shown in the graphical shell, so other icon formats were uncommon. Icon image data was always made up of two bitmaps: the AND bitmap and the XOR bitmap. The AND bitmap is 1 bit per pixel and is applied first to decide which areas of the image are affected by the background. The XOR bitmap is then applied using XOR. This allows for transparent areas in the image but also allows for inverting the background and other tricks.Windows XP adds support for 32-bit colour depth icon images, with transparency taken from the alpha channel of the image, allowing semitransparent areas like shadows and antialiased edges. As the AND bitmap is no longer used, these icon images contain only XOR bitmap data. Windows XP also adds the ability to display icons at up to 96×96 pixel resolution in the graphical shell; however, Microsoft only recommended icon sizes up to 48×48 pixels, so larger icon sizes are uncommon.Windows Vista adds support for 256×256 pixel icon images, and supports (but does not require) the compressed PNG format for that size. The PNG format encodes the image transparency data directly; it contains neither the XOR nor the AND bitmap data of the other icon image formats. It is recommended that all 256×256 icons should be stored in the ICO file in PNG format to reduce the overall size of the file. The Windows Vista graphical shell supports "zooming" the display in and out; as a result, more icon formats (including the larger, 256×256 format) are recommended.

[edit] Recommended icon sizes for Windows Vista compatibility

The full set of standard icon sizes which should be provided for full Windows Vista compatibility:256×256, 32-bit color, PNG compressed256×256, 8-bit color, PNG compressed256×256, 4-bit color, PNG compressed48×48, 32-bit color, uncompressed48×48, 8-bit color, uncompressed48×48, 4-bit color, uncompressed32×32, 32-bit color, uncompressed32×32, 8-bit color, uncompressed32×32, 4-bit color, uncompressed16×16, 32-bit color, uncompressed16×16, 8-bit color, uncompressed16×16, 4-bit color, uncompressed

[edit] Icon library

An icon library is a way to package Windows icons. It is typically a New Executable binary having .ICL extension with icon resources being the packaged icons.

[edit] File structure

Please note that all values are represented in little-endian (Intel standard) formatIcon HeaderStores general information about the ICO file.Directory[1..n]Stores general information about every image in the file.Icon #1The actual "data" for the first image in old AND/XOR DIB format or newer PNG...Icon #nData for the last icon image[edit] HeaderOffset#SizePurpose02reserved. should always be 022type. 1 for icon (.ICO), 2 for cursor (.CUR) file42count; number of images in the file[edit] DirectoryOffset#SizePurpose01width, should be 0 if 256 pixels11height, should be 0 if 256 pixels21colour count, should be 0 if more than 256 colours31reserved, should be 0[1]42colour planes when in .ICO format, should be 0 or 1[2], or the X hotspot when in .CUR format62bits per pixel when in .ICO format[3], or the Y hotspot when in .CUR format84size in bytes of the bitmap data124offset, bitmap data address in the file^ Although Microsoft's technical documentation states that this value must be zero, the icon encoder built into .NET (System.Drawing.Icon.Save) sets this value to 255. It appears that the operating system ignores this value altogether.^ Setting the colour planes to 0 or 1 is treated equivalently by the operating system, but if the colour planes are set higher than 1, this value should be multiplied by the bits per pixel to determine the final colour depth of the image. It is unknown if the various Windows operating system versions are resilient to different colour plane values.^ The bits per pixel might be set to zero, but can be inferred from the other data; specifically, if the bitmap is not PNG compressed, then the bits per pixel can be calculated based on the length of the bitmap data relative to the size of the image. If the bitmap is PNG compressed, the bits per pixel are stored within the PNG data. It is unknown if the various Windows operating system versions contain logic to infer the bit depth for all possibilities if this value is set to zero.

[edit] See also

Windows bitmap, a very similar file format(Note that many of the external links in that article are relevant to ICO files as well).Apple Icon Image, the icon format used in Mac OS X.Favicon, an icon format used for websitesIcon editor

[edit] External links

The external links in this article may not follow Wikipedia's content policies or guidelines.Please improve this article by removing excessive or inappropriate external links.IANA registration information for image/vnd.microsoft.iconExplanation of the ICO implementation from Microsoft (Out of date. Does not include Vista additions.)Microsoft's Guide for creating iconsCompare with Mac OS X IconsA code library used to manipulate icons. Also includes a detailed technical explanation of the icon format, including the Windows Vista additions.Retrieved from "http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)" Categories: Graphics file formats | Microsoft Windows multimedia technology | IconsHidden category: Wikipedia external links cleanup Views Article Discussion Edit this page History Personal tools Log in / create account if (window.isMSIE55) fixalpha(); Navigation Main page Contents Featured content Current events Random article Search   Interaction About Wikipedia Community portal Recent changes Contact Wikipedia Donate to Wikipedia Help Toolbox What links here Related changesUpload fileSpecial pages Printable version Permanent linkCite this page Languages Deutsch Français Italiano Português Русский Svenska 中文 Powered by MediaWiki Wikimedia Foundation This page was last modified on 15 September 2008, at 17:09. All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.) Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) tax-deductible nonprofit charity. Privacy policy About Wikipedia Disclaimers if (window.runOnloadHook) runOnloadHook();
 

Encyclopedia

article

providing

an

overview

of

the

the

format.

http://en.wikipedia.org/wiki/ICO_(icon_image_file_format)

Wikipedia: ICO (Icon Image File Format) 2008 October

dvd rental

dvd


Encyclopedia article providing an overview of the the format.

Rules

© 2008 Internet Explorer 5+ or Netscape 6+
Recommended Sites: 1. Arts - Business - Computers - Games - Health - Home - Kids and Teens - News - Recreation - Reference - Regional - Science - Shopping - Society - Sports - World Miss Gallery - Top Anime Hentai - DVD rental by mail - Credit Counseling - Problem Mortgage - Loans - Credit Counseling - Loans
2008-10-15 19:54:38

Copyright 2005, 2006 by Webmaster
Websites is cool :) 65Serwery - Albergo Londra - Wyposaenie Spa - Kasy Fiskalne - Linki Stae