topic-18220

Posts: 933

Joined: Sun Oct 09, 2005 01:05 PM

FlushComm()
Posted: Sat Feb 27, 2010 11:29 PM

Hi,

A while back Antonio helped me get some serial communication issues sorted out with FWPPC.

Basically to get ReadComm() and WriteComm() to work he had me add the following code to the end of my .prg file. I now need the same type of thing for FlushComm().

Code (fw): Select all Collapse

HB_FUNC( READCOMM )
{
  DWORD dw = 0;
  ReadFile( ( HANDLE ) hb_parnl( 1 ), ( LPVOID ) hb_parc( 2 ), ( DWORD ) hb_parni( 3 ), &dw, NULL );

  hb_retni( ( int ) dw ? dw : -1 );
}

HB_FUNC( WRITECOMM )
{
  DWORD dw = 0;
  WriteFile( (HANDLE ) hb_parnl( 1 ), ( LPVOID ) hb_parc( 2 ), ( DWORD ) hb_parni( 3 ), &dw, NULL );
  hb_retni( ( int ) dw ? dw : -1);
}

I have done some searching and found that the windows API uses PurgeComm in place of FlushComm but I do not know how to set it up as above.

Can someone please help me out on this

Thanks,

Jeff Barnes

(FWH 16.11, xHarbour 1.2.3, Bcc730)

Antonio Linares

Posts: 44162

Joined: Thu Oct 06, 2005 05:47 PM

Re: FlushComm()
Posted: Sun Feb 28, 2010 03:12 PM

Jeff,

Code (fw): Select all Collapse

HB_FUNC( FLUSHCOMM )
{
  hb_retl( PurgeComm( ( HANDLE ) hb_parnl( 1 ), ( DWORD ) hb_parnl( 2 ) ) );
}

The second parameter can be one or a combination of the following values:
http://msdn.microsoft.com/en-us/library/aa363428(VS.85).aspx

regards, saludos

Antonio Linares
www.fivetechsoft.com

FiveTech Support Forums

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