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WinForms barcode control or generator helps to embed barcodes into your .NET application. It is fully customizable and support for all barcode formats.
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Because multiple connections may be established from one component to another component or components, some type of multiplexing function is needed to differentiate between data traversing the various connections. This ensures that the transport layer can send data from a particular application to the correct destination and application, and, when receiving data from a destination, get it to the right local application. To accomplish this feat, the transport layer typically assigns a unique set of numbers for each connection. These numbers are commonly called port or socket numbers. A source port number and a destination port number are assigned for each connection. The destination port numbers assigned by the source device are sometimes referred to as well-known or reserved port numbers. The source device uses an appropriate port number in the destination port field to indicate to the destination which application it is trying to access. For example, the TCP/IP protocol stack gives each application a unique port number. Some well-known port numbers used by TCP/IP applications are FTP (20 and 21), telnet (23), SMTP for e-mail (25), DNS (53), TFTP (69), WWW (80), and POP mail (110). With TCP/IP, port numbers from 0 to 1023 are well-known port numbers. However, some applications have port numbers higher than these numbers. Actually, TCP/IP uses a 16-bit field for the port number, allowing you to reference up to 65,536 different numbers. Port numbers above 1023 are used by the source to assign to the connection as the source port number. Each connection on the source has a unique source port number. This helps the source device differentiate its own connections. This process is discussed in more depth in 9.

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Another factor that limits the pulse rate of optical transmission is chromatic dispersion, which results from the fact that the speed of an optical pulse traveling in a fiber changes as the pulse s wavelength changes. As photons flow through a fiber the 2- to 5-nm spectral width of the laser , results in a broadening of pulses, especially as photons scatter. The net effect of attenuation, scattering, and chromatic dispersion is illustrated in Figure 2.12. The top portion of the figure illustrates a sequence of perfect pulses generated by a laser. The middle sequence illustrates the effect of attenuation on the pulses, while the lower portion of the illustration indicates the effect of scattering and chromatic dispersion. In examining Figure 2.12, note that as the transmission distance increases, the pulses become smaller as attenuation increases and wider as the effect of scattering and chromatic dispersion increases.

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overloaded with traffic from its member servers while, at the same time, limiting the amount of additional load on the ZDCs and bandwidth required by multiple zones The inter-zone traffic should be both minimized and balanced between ZDCs The number of zones needed by a farm is dependent on the topology of the site in which the farm is being deployed, the number of users connecting to the farm, the number of simultaneous user logons, the number of published applications with load evaluators attached, and the length of time the average user stays logged on to a session (a single daily session or repeated short sessions), and it should be kept to a minimum The fewer zones a farm has, the more it will scale.

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Let s look at this class, line by line. The name of this attribute is RemarkAttribute. Its declaration is preceded by the AttributeUsage attribute, which specifies that RemarkAttribute can be applied to all types of items. Using AttributeUsage, it is possible to narrow the list of items to which an attribute can be attached, and we will examine its capabilities later in this chapter. Next, RemarkAttribute is declared and it inherits Attribute. Inside RemarkAttribute there is one private field, pri_remark, which supports one public, read-only property: Remark. This property holds the description that will be associated with the attribute. (Remark could also have been declared as an auto-implemented property with a private set accessor, but a read-only property is used for the purposes of illustration.) There is one public constructor that takes a string argument and assigns it to Remark. At this point, no other steps are needed, and RemarkAttribute is ready for use.

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Read Barcode in .NET Winforms Imaging Viewer| Online Tutorials
This integration guide suggests how to use WinForms .NET Imaging SDK to read a barcode from images & documents.

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