WinAPI dcb type

[Jim Seekamp]

I have no problems setting any of the dcb parameters except the
ones below. The PBDLL6.0 compiler gives me an error saying it's
not a valid member. I looked in my win32api.inc and these are all
part of the type. Any ideas what's going wrong?

Best Regards

Jim


dim pconfig as dcb
''pconfig.fBinary=%true
''pconfig.fparity=%false
''pconfig.fOutxCtsFlow=%false
''pconfig.fOutxDsrFlow=%false
''pconfig.fDtrControl=%dtr_control_disable
''pconfig.fDsrSensitivity=%true
''pconfig.fTXContinueOnXoff=%true
''pconfig.fOutX=%false
''pconfig.fInX=%false
''pconfig.fErrorChar=%false
''pconfig.fNull=%false
''pconfig.fRtsControl=%rts_control_disable
''pconfig.fAbortOnError=%false


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Jim Seekamp

[Edwin Knoppert]

I think it's easy.

This is the structure:

TYPE DCB
  DCBlength AS DWORD
  BaudRate AS DWORD
  fBits AS DWORD       ' fBinary
                       ' fParity
                       ' fOutxDtsFlow
                       ' fOutxDsrFlow
                       ' fDtrControl
                       ' fDsrSensitivity
                       ' fTXContinueOnXoff
                       ' fOutX
                       ' fInX
                       ' fErrorChar
                       ' fNull
                       ' fRtsControl
                       ' fAbortOnError
                       ' fDummy2

  wReserved AS INTEGER
  XonLim AS INTEGER
  XoffLim AS INTEGER
  ByteSize AS BYTE
  Parity AS BYTE
  StopBits AS BYTE
  XonChar AS BYTE
  XoffChar AS BYTE
  ErrorChar AS BYTE
  EofChar AS BYTE
  EvtChar AS BYTE
  wReserved2 AS INTEGER
END TYPE

You need to use fBits using 'Or' instead of sep. elements.



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[email protected]

[Jim Seekamp]

My declaration reads:

TYPE DCB
DCBlength AS LONG
BaudRate AS LONG
fBinary AS LONG
fParity AS LONG
fOutxCtsFlow AS LONG
fOutxDsrFlow AS LONG
fDtrControl AS LONG
fDsrSensitivity AS LONG
fTXContinueOnXoff AS LONG
fOutX AS LONG
fInX AS LONG
fErrorChar AS LONG
fNull AS LONG
fRtsControl AS LONG
fAbortOnError AS LONG
fDummy2 AS LONG
wReserved AS INTEGER
XonLim AS INTEGER
XoffLim AS INTEGER
ByteSize AS BYTE
Parity AS BYTE
StopBits AS BYTE
XonChar AS BYTE
XoffChar AS BYTE
ErrorChar AS BYTE
EofChar AS BYTE
EvtChar AS BYTE
END TYPE

????????


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Jim Seekamp

[Jim Seekamp]

I just looked at the latest Win32api.inc and I see the new declaration.
How can you tell the bit position of the different settings in .fBits ?
It seems a direct OR will not do the job; won't each separate value have to be read and compared?

If the bits are consecutive, it would be this right?

dim pconfig as dcb

flags???=pconfig.fBits

bit set flags???,0 ''pconfig.fBinary=%true
bit reset flags???,1 ''pconfig.fparity=%false
bit reset flags???,2 ''pconfig.fOutxCtsFlow=%false
bit reset flags???,3 ''pconfig.fOutxDsrFlow=%false
''bit(flags???,4)=%dtr_control_disable ''pconfig.fDtrControl
bit set flags???,5 ''pconfig.fDsrSensitivity=%true
bit set flags???,6 ''pconfig.fTXContinueOnXoff=%true
bit reset flags???,7 ''pconfig.fOutX=%false
bit reset flags???,8 ''pconfig.fInX=%false
bit reset flags???,9 ''pconfig.fErrorChar=%false
bit reset flags???,10 ''pconfig.fNull=%false
''bit(flags???,11)=%rts_control_disable ''pconfig.fRtsControl
bit reset flags???,12 ''pconfig.fAbortOnError=%false

pconfig.fBits=flags???

Thanks Edwin for the info.

Best Regards

Jim


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Jim Seekamp



[This message has been edited by Jim Seekamp (edited August 24, 2000).]

[Edwin Knoppert]

I guess:

%DCB_fBinary = 1
%DCB_fParity = 2
%DCB_fOutxDtsFlow = 4
%DCB_fOutxDsrFlow = 8
etc:
fDtrControl
fDsrSensitivity
fTXContinueOnXoff
fOutX
fInX
fErrorChar
fNull
fRtsControl
fAbortOnError
fDummy2

fBits = %DCB_fBinary Or %DCB_fParity

I did not try it but you cert. should have luck with
BITS(1) = 1
BITS(2) = 0
Etc..



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[email protected]

[Jim Seekamp]

In the WinAPI, %rts_control_disable has possible values
of 0,1, and 2 making it impossible for the bits to be
consecutive. Does anyone know how this fBits dcb type
member works??

- Jim



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Jim Seekamp

[Jim Seekamp]

The MSDN library shows separate members for what the PB
declaration calls fBits in dcb.
"Communications Programming For Windows 95" by Charles Mirho
also shows separate type members.
Has PowerBasic customized these settings for their own custom type?
If so, is there any documentation on how to use it?

Best Regards

Jim


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Jim Seekamp

[This message has been edited by Jim Seekamp (edited August 25, 2000).]

[Charles Dietz]

Jim,

From the win32.hlp file, the fbits are assigned as follows:

DWORD fBinary: 1; // binary mode, no EOF check
DWORD fParity: 1; // enable parity checking
DWORD fOutxCtsFlow:1; // CTS output flow control
DWORD fOutxDsrFlow:1; // DSR output flow control
DWORD fDtrControl:2; // DTR flow control type
DWORD fDsrSensitivity:1; // DSR sensitivity
DWORD fTXContinueOnXoff:1; // XOFF continues Tx
DWORD fOutX: 1; // XON/XOFF out flow control
DWORD fInX: 1; // XON/XOFF in flow control
DWORD fErrorChar: 1; // enable error replacement
DWORD fNull: 1; // enable null stripping
DWORD fRtsControl:2; // RTS flow control
DWORD fAbortOnError:1; // abort reads/writes on error
DWORD fDummy2:17; // reserved

and as you can see, Rts_Control is allowed 2 bits, which means that
you can select 4 different values. And from Win32api.inc, these values are:

%RTS_CONTROL_DISABLE = &H0
%RTS_CONTROL_ENABLE = &H1
%RTS_CONTROL_HANDSHAKE = &H2
%RTS_CONTROL_TOGGLE = &H3

So, I believe you just need to set those two bits to one of the above values.
Hope this helps.

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[This message has been edited by Charles Dietz (edited August 25, 2000).]

[Jim Seekamp]

Thanks! That helps immensely Charles.
(Where did you find that win32.hlp file?? I don't seem to have it.)

Best Regards

Jim


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Jim Seekamp

[Charles Dietz]

jim,

here are some sites that should be helpful to you in choosing a
suitable link for downloading win32.hlp. i refer to this file so
often, i have a shortcut to it on my windows desktop.

http://www.powerbasic.com/support/pb...ead.php?t=2147
ftp://ftp.borland.com/pub/delphi/tec...phi2/win32.zip
ftp.powerbasic.com/pub/mstools/win32.hlp
http://www.cs.virginia.edu/~lcc-win32/ the one i use.

http://www.powerbasic.com/support/pb...ad.php?t=14499



the above powerbasic http sites are powerbasic windows forum threads.
for the ftp sites, you should copy and paste the addresses. otherwise,
if you just doubleclick the links, you'll get the message that netscape
can't find them, or at least i do.

as seen from the first two powerbasic forum threads, there has been
some difficulty in using the find feature with the win32.hlp file
downloaded from the powerbasic ftp site.

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[this message has been edited by charles dietz (edited august 25, 2000).]

[Lance Edmonds]

As seen from the first two Powerbasic forum threads, there has been
some difficulty in using the FIND feature with the win32.hlp file
downloaded from the Powerbasic ftp site.

Actually only a very small number of people have had a problem with the Help File (which is a Microsoft file) and most of the time the solution centres arounf deleting the .GID and .FTS file, which are not always in the same folder as the .HLP file!

Usually applying the latest Windows service packs solves the issue if deleting the GID and FTS files does not. As a last resort, installing HCW32 usually fixes it. (HCW32 is the Microsoft Help Compiler, currently at version 4.03)

I must get onto writing an FAQ on this one!



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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>