Serial Communications Functions
A version of this page is also available for
4/8/2010
The following table shows the serial communications functions with a description of the purpose of each.
| Function | Description |
|---|---|
Restores character transmission for a specified communications device and places the transmission line in a nonbreak state. |
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Retrieves information about a communications error and reports the current status of a communications device. |
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Directs a specified communication device to perform an extended function. |
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Retrieves the event mask value for a specified communication device. |
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Retrieves modem control register values. |
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Fills a buffer with communication properties data for a specified communication device. |
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Fills in a device-control block with the current control settings for a specified communication device. |
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Retrieves the time-out parameters for all read and write operations on a specified communication device. |
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Discards characters from the output or input buffer of a specified communications resource. |
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Suspends character transmission for a specified communications device and places the transmission line in a break state until the ClearCommBreak function is called. |
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Specifies a set of events to be monitored for a communications device. |
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Configures a communications device according to the specifications in a device-control block. |
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Sets the timeout parameters for all read and write operations on a specified communications device. |
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Initializes the communications parameters for a specified communications device. |
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Transmits a specified character ahead of any pending data in the output buffer of the specified communications device. |
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Waits for an event to occur for a specified communications device. |