Reading data from outside world(plz help)

Question

i have a hardware which reads the temperature and displays..... i want to display this reading in the computer....I already controlled the Parallel port small harwares have been controlled but this reading problem never solved

Raaj Kumar · Answer

Hi Shahid For reading data from parallel port you need to import COM dll Input32.dll which should be inside C:\Windows\System32. The following is the code for importing the DLL using System.Runtime.InteropServices; public class PortOperation { [ DllImport ( inpout32.dll  EntryPoint = Out32 )] public static extern void Output( int address int data); //Send Data to Parallel port [ DllImport ( inpout32.dll  EntryPoint = Inp32 )] public static extern int Input( int address); //Read Data from Parallel port public void ReadDataFromport() { int data = Input(889); //889 integer valued address for parallel used for reading } public void WriteToPort() { Output(888 64); //888 integer valued address for parallel used for writing to port } } Try this and please let me know you have any problem. Regards Raaj