🚀 go-pugleaf

>So...One of these:
>
>my_DCB.BaudRate = SystemInfo.ComInfo.BaudRate;
>my_DCB.ByteSize = 8;
>my_DCB.Parity   = (char)SystemInfo.ComInfo.Parity;
> . . .  etc . . .
>SetCommState
>
> - - Or - -
>
>BuildCommDCB( "COM1:9600,S,8,1", &my_DCB )
>my_DCB.fBinary  = true;
>my_DCB.fParity  = 1;
>(whatever else you need setting that BuildCommDCB didn't set for you )
>SetCommState

 -- -- -- > 

Sorry Bob but it's just NOT working. I opened a new project 
just for a test, and this is it's full code - 

//-------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
#pragma package(smart_init)
#pragma resource "*.dfm"

TForm1 *Form1;

//-------------------------------------------------------------

__fastcall TForm1::TForm1( TComponent *Owner ) : TForm( Owner )
{

}

//-------------------------------------------------------------

int InitCommunication( void )
{
  char    ComName[30] = "COM1";
  HANDLE  ComHndl = NULL;
  DCB     my_DCB;

  ComHndl = CreateFile( ComName, GENERIC_WRITE + GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); 

  if ( ComHndl == INVALID_HANDLE_VALUE )
    return 0;

  my_DCB.DCBlength = sizeof( my_DCB );
  my_DCB.BaudRate  = 19200;
  my_DCB.fBinary   = true;
  my_DCB.ByteSize  = 8;
  my_DCB.fBinary   = true;
  my_DCB.fParity   = 1;
  my_DCB.Parity    = MARKPARITY;
  my_DCB.StopBits  = 1;

  if ( !BuildCommDCB( "COM1:19200, M, 8, 1", &my_DCB ) )
    return 0;
    
  if ( !SetCommState( ComHndl, &my_DCB ) )
    return 0;

  if ( GetCommState( ComHndl, &my_DCB ) )
  {
    int k = 0;
    k = k; 
  }

  return 1;
}

//-------------------------------------------------------------

void __fastcall TForm1::FormActivate( TObject *Sender )
{
  InitCommunication(); 
}

//-------------------------------------------------------------


As it is, it's works and return '1' ( = PASS ), BUT if i try
to do what you told me, that is to remove the lines -

if ( !BuildCommDCB( "COM1:19200, M, 8, 1", &my_DCB ) )
  return 0;

from the code OR to put them right above the line -

my_DCB.DCBlength = sizeof( my_DCB );

then the SetCommState() function FAILS !! 

Also, if i try to put the line -

my_DCB.fParity = 1; 

right above the SetCommState() function, then if i check it's 
value after the sucess call for GetCommState() i see that it's 
value is '0' AGAIN !

How can it be?  WHAT am i doing wrong here ? 

Thanks Very Much,
Ramy.