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This IOCTL clears pending communications errors and returns the current communication status. The DeviceIoControl function executes this IOCTL.
Parameters
- dwOpenData
[in] Handle returned from a call to the COM_Open function. - dwCode
[in] Set to this IOCTL: IOCTL_SERIAL_GET_COMMSTATUS. - pBufIn
Ignored. - dwLenIn
Ignored. - pBufOut
[out] Pointer to a SERIAL_DEV_STATUS structure to contain the returned status information. - dwLenOut
[out] Greater than or equal to sizeof(SERIAL_DEV_STATUS). - pdwActualOut
[out] Pointer to a DWORD variable to return the length of the returned data. Set to sizeof(SERIAL_DEV_STATUS) if there is no error.
Return Values
Returns TRUE if successful. Returns FALSE otherwise. To get extended error information, call GetLastError.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Pegdser.h.
See Also
COM_Open | DeviceIoControl | SERIAL_DEV_STATUS
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