The full .NET Framework does not have IrDA classes. To establish IrDA connections between a personal computer and a device, you must invoke the Windows socket using platform invoke on the personal computer side.
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The .NET Compact Framework supports only the IrDA standard. You must use platform invoke to access other infrared capabilities on a device. The .NET Compact Framework supports Windows CE powered devices with an IrDA port, such as mice, printers, Pocket PCs and other PDAs.
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IrDA defines a protocol suite designed to support point-to-point infrared data transmission between two wireless devices over a short range. IrDA accommodates peer connectivity where multiple devices can establish connections to the same host.
You can implement client and server functionality. A client is the device that initiates the connection. After establishing a connection, data can be exchanged reliably. Because a server requires additional stack requirements, the server is typically a personal computer.
The IrDA classes operate in the Information Access Service (IAS) layer of the IrDA protocol stack. An IAS layer can have one or both of the following components:
Server. Contains a collection of objects that describe the services and applications available for incoming connections to that server.
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There is no class for the server component for this release of the .NET Compact Framework.
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Client. Performs discovery queries on the server component to obtain a directory of all available connections.
The following table summarizes the functions performed by the .NET Compact Framework IrDA classes.
Class
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Description
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IrDACharacterSet
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This enumeration describes the character set supported by the IrDA device that was discovered.
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IrDAClient
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Provides access to the client so that you can determine a desired connection, open it, and send and receive data.
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IrDADeviceInfo
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Provides information on available connections on a server obtained by a discovery query from the client.
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IrDAEndPoint
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Provides for creating a connection to a server and obtaining infrared port information.
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IrDAHints
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This enumeration lists values indicating the type of device or connection, such as a fax.
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IrDAListener
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Places a socket in a listening state to monitor available connections for a specified service. The listener does not listen until the Start method is called.
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