Solved

Detecting Com Port Settings ...

Posted on 2000-03-28
1
258 Views
Last Modified: 2010-04-04
Hi,

I have an old Delphi program (Compiled EXE only) which communicates via the serial port.

I need to get something talking to it, but I don't know the settings ...

Is there any way to get the com port settings whilst the program is running ?

Any help would be appreciated.

James
0
Comment
Question by:jatkin
1 Comment
 
LVL 7

Accepted Solution

by:
ahalya earned 100 total points
ID: 2664674
You can call the "GETCOMMSTATE" WinAPI to retrieve info about the current settings:  (I assume that you want to do it using programming)

 (the following info From Delphi files will be useful in that case)

function GetCommState(hFile: THandle; var lpDCB: TDCB): BOOL; stdcall;


the var DCB points to the following structure.

type
  TDCB = packed record
    DCBlength: DWORD;
    BaudRate: DWORD;
    Flags: Longint;
    wReserved: Word;
    XonLim: Word;
    XoffLim: Word;
    ByteSize: Byte;
    Parity: Byte;
    StopBits: Byte;
    XonChar: CHAR;
    XoffChar: CHAR;
    ErrorChar: CHAR;
    EofChar: CHAR;
    EvtChar: CHAR;
    wReserved1: Word;
  end;
  PDCB = ^TDCB;
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question