cCall [pPortGetCommState], <hPort, <OFFSET32 dcbPort>> or eax, eax jz error_handler
Called by the _VCOMM_GetCommState service to get the device control block (_DCB) of a port. Uses the C calling convention.
hPort
Address of a _PORTINFORMATION structure returned by the PortOpen function.
dcbPort
Address of a _DCB structure that is filled in.
See also _DCB, _PORTINFORMATION, PortOpen, _VCOMM_GetCommState