GetCommProperties info Overview Group

The GetCommProperties function fills a buffer with information about the communications properties for a specified communications device.

BOOL GetCommProperties(

HANDLE hFile,	// handle of communications device
LPCOMMPROP lpCommProp	// address of communications properties structure
);

Parameters

hFile: Identifies the communications device. The CreateFile function returns this handle.
lpCommProp: Points to a COMMPROP structure in which the communications properties information is returned. This information can be used in subsequent calls to the SetCommState, SetCommTimeouts, or SetupComm function to configure the communications device.

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

The GetCommProperties function returns information from a device driver about the configuration settings that are supported by the driver.