read data from port

[ashish sharma]

i want to read data that comes from digitizer(used in weigh-bridge) and display that value in a textbox.

can anyone help ?


Awaiting

ashish

[Shaggy Hiker]

How is the digitizer connected to the computer, serial port? Also, what language?

[sessi4ml]

Does the scale use a RS232 port?
You may use the , 'open' command in VB to read the data

[Yoosha]

I think:

Port.def file:

LIBRARY Port
DESCRIPTION DLL FOR I/O PORT
EXPORTS
Outp @1
Inp @2

Port.cpp file:

#include "conio.h"
short _stdcall Outp(int PortAddress,int PortData)
{
short Dummy;
Dummy=(short)(_outp(PortAddress,PortData));
return(Dummy);
}
short _stdcall Inp(int PortAddress)
{
short PortData;
PortData=(short)(_inp(PortAddress));
return(PortData);}

in VB:
Private Declare Function Outp Lib “Port.dll” (Byval PortAddress as Integer,Byval PortData as Integer) as Integer
Private Declare Function Inp Lib “Port.dll” (Byval PortAddress as Integer) as Integer

Reading:
Portvalue = Inp(Port_Number)