What file format is ico

ICO is an acronym for Icon file, a form of Windows icons files that can store icon files for a single pattern, multiple dimensions, and multiple swatches. An icon is a computer graphic with an explicit reference meaning.　　Where the desktop icon is a software identity, the icon in the interface is a functional identity. Icons have a set of standard size and attribute formats, and are usually small in size. Each icon contains multiple pictures of the same display, each with a different size and number of hair colors. An icon is a similar set of pictures, each picture has a different format. At this point, the icon is three-dimensional. The icon also has another feature: it contains transparent areas that can reveal the desktop background under the icon in a transparent area.　　The structure of the icon is actually the same as McDonald's Big Mac burger. An icon is actually a collection of multiple pictures in different formats, and it also contains a certain range of transparency.　　Because of the diversity of computer operating systems and display devices, the size of the icons requires multiple formats. When the operating system displays an icon, it chooses the image that best fits the current display environment and State in a certain standard. If you are using the WINDOWS98 operating system, the display environment is 800x600 resolution, 32-bit color depth, you see on the desktop of each icon image format is 256 color 32x32 pixel size. If in the same display environment, the Windows XP operating system, the image format of these icons is true color (32-bit color depth), 32x32 pixel size.

The following are standard icon formats in Windows operating systems: (Unit: size pixels-color) Windows se/me/2000 48-256 x 32-256 x 16-256 48-16 32 X 32-16 x 16-16

Windows XP

48-32bit x 32-32bit x 24-32bit x 16-32bit (32-bit True Color supports multiple-channel transparency. )

48-256 x 32-256 x 24-256 x 16-256

48-16 x 32-16 x 24-16 x 16-16

* This format is not required in the XP icon.

Maximum support for 256 x 256 under Vista system

At the same time, non-standard ICO format files also support the storage of irregular dimensions.

Note: windows98/2000 is not compatible with the X 24 format icon. You can open an icon in the relevant application that contains this image format, but the operating system is considered invalid. You have to make sure that the icon you are designing contains at least the image format listed above to get a good display. If the operating system cannot find a particular image format in the icon, it will always display the closest image format, such as reducing the size of 48 to x 24 pixel size.　　Of course, the effect is worse. The file format of the icon is in the Windows operating system, and the filename suffix for a single icon is. ICO. Icons in this format can be viewed directly in the Windows operating system, and the suffix name is.　　ICL's representative icon Library, which is a collection of multiple icons, the general operating system does not directly support this format of the files need to use Third-party software to browse.　　In the graphical user interface, all resources in the system are represented by three types of icons: An application icon that points to an executable program that completes a feature, a folder icon (points to a container for other applications, text or subfolders), and a document icon that points to information created by an application. In a Windows system, an icon with an arc arrow in the lower-left corner represents a shortcut.　　A shortcut is a special file type that provides quick and easy access to some resource objects in the system, and the shortcut icon is an "alias" icon for the original object. Shortcut icons are useful as a way to customize your desktop for quick access to frequently used applications and documents.