Communications Functions
The following functions are used with communications resources.
| Function | Description |
|---|---|
| BuildCommDCB | Fills a specified DCB structure with values specified in a device-control string. |
| BuildCommDCBAndTimeouts | Translates a device-definition string into appropriate device-control block codes and places them into a device control block. |
| ClearCommBreak | Restores character transmission for a specified communications device and places the transmission line in a nonbreak state. |
| ClearCommError | Retrieves information about a communications error and reports the current status of a communications device. |
| CommConfigDialog | Displays a driver-supplied configuration dialog box. |
| EscapeCommFunction | Directs a specified communications device to perform an extended function. |
| GetCommConfig | Retrieves the current configuration of a communications device. |
| GetCommMask | Retrieves the value of the event mask for a specified communications device. |
| GetCommModemStatus | Retrieves modem control-register values. |
| GetCommProperties | Retrieves information about the communications properties for a specified communications device. |
| GetCommState | Retrieves the current control settings for a specified communications device. |
| GetCommTimeouts | Retrieves the time-out parameters for all read and write operations on a specified communications device. |
| GetDefaultCommConfig | Retrieves the default configuration for the specified communications device. |
| PurgeComm | Discards all characters from the output or input buffer of a specified communications resource. |
| SetCommBreak | Suspends character transmission for a specified communications device and places the transmission line in a break state. |
| SetCommConfig | Sets the current configuration of a communications device. |
| SetCommMask | Specifies a set of events to be monitored for a communications device. |
| SetCommState | Configures a communications device according to the specifications in a device-control block. |
| SetCommTimeouts | Sets the time-out parameters for all read and write operations on a specified communications device. |
| SetDefaultCommConfig | Sets the default configuration for a communications device. |
| SetupComm | Initializes the communications parameters for a specified communications device. |
| TransmitCommChar | Transmits a specified character ahead of any pending data in the output buffer of the specified communications device. |
| WaitCommEvent | Waits for an event to occur for a specified communications device. |