TLazSerial : serial port component for Lazarus (windows and linux).

[tetrastes]

Do you want to apply the changes in the latest .7z and upload a new one?
Or I can do it, but the chance of making an error increases.

Of course you can. Just in case, I attach lazsynaser-new.pas also.

There are also some pull requests, I wonder if I shall apply them:
https://github.com/JurassicPork/TLazSerial/pulls

It's up to you to decide.

If I remeber (some of) these from lazsynaser.pas also have different names:

Code: Pascal  [Select][+][-]

1.   dcb_Binary = $00000001;
2.   dcb_ParityCheck = $00000002;
3.   dcb_OutxCtsFlow = $00000004;
4.   dcb_OutxDsrFlow = $00000008;
5.   dcb_DtrControlMask = $00000030;
6.   dcb_DtrControlDisable = $00000000;
7.   dcb_DtrControlEnable = $00000010;
8.   dcb_DtrControlHandshake = $00000020;
9.   dcb_DsrSensivity = $00000040;
10.   dcb_TXContinueOnXoff = $00000080;
11.   dcb_OutX = $00000100;
12.   dcb_InX = $00000200;
13.   dcb_ErrorChar = $00000400;
14.   dcb_NullStrip = $00000800;
15.   dcb_RtsControlMask = $00003000;
16.   dcb_RtsControlDisable = $00000000;
17.   dcb_RtsControlEnable = $00001000;
18.   dcb_RtsControlHandshake = $00002000;
19.   dcb_RtsControlToggle = $00003000;
20.   dcb_AbortOnError = $00004000;
21.   dcb_Reserveds = $FFFF8000;    

These are from Win32 API https://learn.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-dcb.

Maybe some of these:
https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ntddser/ns-ntddser-_serial_handflow

I don't think there is any need in Windows Drivers API, but again, it's up to you to decide. This is your fork of LazSerial now. 
 

[CM630]

Of course you can. Just in case, I attach lazsynaser-new.pas also.

Applied and attached.

I don't think there is any need in Windows Drivers API, but again, it's up to you to decide. This is your fork of LazSerial now. 

For people like me, which know nothing about serial communication, it is better to be able to get the connection properties from the sniffer and apply it.
I understand nothing about DTR, RTS, parity, etc. As long as I need to connect a device to the PC, I have to reproduce what it expects, the connection parameters are already selected by someone else.
 The changes I made in TLazSerial are related to port listing, the only exception is that I added selectable baudrate.

This is your fork of LazSerial now. 

I do hope that @JP is not gone forever.

EDIT: I added some info in the wiki: https://wiki.freepascal.org/Hardware_Access#TLazSerial
EDIT2: Uploaded a new version, .ShowSetupDialog was not working. Also added an Arduino sample for Test1.