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Platforms to show: All Mac Windows Linux Cross-Platform


Super class: CFObjectMBS

Type Topic Plugin Version macOS Windows Linux Console & Web iOS
class CoreFoundation MBS MacCF Plugin 10.5 Yes No No Yes, macOS only No
Function: The Core Foundation class for an unique identifier.
dim u as new CFUUIDMBS
MsgBox u.StringValue
CFUUID objects are used by plug-ins to uniquely identify types, interfaces, and factories. When creating a new type, host developers must generate UUIDs to identify the type as well as its interfaces and factories.

UUIDs (Universally Unique Identifiers), also known as GUIDs (Globally Unique Identifiers) or IIDs (Interface Identifiers), are 128-bit values guaranteed to be unique. A UUID is made unique over both space and time by combining a value unique to the computer on which it was generated—usually the Ethernet hardware address—and a value representing the number of 100-nanosecond intervals since October 15, 1582 at 00:00:00.

The standard format for UUIDs represented in ASCII is a string punctuated by hyphens, for example 68753A44-4D6F-1226-9C60-0050E4C00067. The hex representation looks, as you might expect, like a list of numerical values preceded by &h. For example, &hD7, &h36, &h95, &h0A, &h4D, &h6E, &h12, &h26, &h80, &h3A, &h00, &h50, &hE4, &hC0, &h00, &h67 . To use a UUID, you simply create it and then copy the resulting strings into your header and C language source files. Because a UUID is expressed simply as an array of bytes, there are no endianness considerations for different platforms.

You can create a CFUUID object, and thereby generate a UUID, using any one of the Constructors.
Subclass of the CFObjectMBS class.

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Super class CFObjectMBS

This class has no sub classes.

Some methods using this class:

Some examples which use this class:

The items on this page are in the following plugins: MBS MacCF Plugin.

CFURLMBS   -   CFWriteStreamMBS

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