include vcomm.inc mov ax, VCOMM_PM_API_SetCom ;function number mov ebx, hPort les dx, pDcb ;ES:DX -> DCB call [_VCOMMCallAddr] ;protected-mode API address
Sets the state of a communications resource.
hPort
Communications resource handle.
pDcb
Address of a _DCB structure that receives the current communications settings.
See also _DCB, _VCOMM_SetCommState