Parallel Port In XP

Nimish · Dec 19, 2006

Hello Friends
I have a problem accessing parallel port in Xp.I am using Borland C
in which function outportb,inportb are used.This program is to control the data on parallel port which is given to circuit to select the devices(VIZ encoder).I searched in Google and found that
inpout32.dll driver must be loaded.I copied it on my harddisk.But still the port is dump.
Thanks.

girevik · Dec 19, 2006

what kind of problem do you have with inout32?, it worked well for me in Delphi...

10BaseT. · Dec 19, 2006

Many laptops have the facility to disable the port in bios for power saving -

rdrast · Dec 19, 2006

Have you explicitly loaded the DLL in your program? If not, Window's won't just 'Run' it. Also, have you prototyped the actual input and output function pointers to the DLL?

It is generally easiest when using a library such as impout32.dll to make a wrapper function around the actual library calls.

In any event, you need to access the library functions. The standard inp and outp functions in Borland will simply not work.

Nimish · Dec 19, 2006

I have just copied inpout32.dll in windows system directory.What to do next?

girevik · Dec 19, 2006

http://www.logix4u.net/inpout32.htm

http://www.hytherion.com/beattidp/comput/pport.htm

Nimish · Dec 19, 2006

I have copied the DLL but still i can not acess my parallel port.
Do i have to include any new function in my program?

Nimish · Dec 19, 2006

rdrast said:
Have you explicitly loaded the DLL in your program? If not, Window's won't just 'Run' it. Also, have you prototyped the actual input and output function pointers to the DLL?

I have not done any of the things above.

girevik · Dec 19, 2006

Check out links i have posted. Visit the second one and you will get an example for C compiler etc...

Nimish · Dec 19, 2006

I did that but still I am not getting what to do.

panic mode · Dec 19, 2006

Simply placing copy of DLL in System or System32 directory is same as setting PATH variable to that file.
To have DLL or ActiveX installed and recognized, they must be registered.
Registration can be done manually by using regsvr32 command.

http://www.stoneedge.com/support/regsvr32.html

Parallel Port In XP

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