OpenEuphoria

2. Re: solved DCBII

• Posted by Bernie Ryan <LockCityData at CS.COM> Mar 15, 2000
• 436 views

On Wed, 15 Mar 2000 15:10:23 +0100, Kondor Attila <konel at DPG.HU> wrote:

>Hi  Bernie,
>
>Thank you very much. I am very happy !!
>It seems so the WIN32.HLP is not uptodate.
>But DCB is the same in the Structures.h .
>Did you find better?
>Attila Kondor
>>
>>

  Attila:

     If you look at WIN32.HLP you will see that the BIT entries

     start with the letter "f", This means that this variable is

     is what is called a bit-field. So when you see an entry like

     this:


     DWORD fBinary: 1;

     This means fBinary is 1 bit in a 32 bit bit-field. The number

     after the colon ":" tells you how many bits.

 Bernie




>> -- This is what the structure should look like




>>
>> global constant
>>   DCBlength            = allot(DWord),  -- offset: 0
>>   BaudRate             = allot(DWord),  -- offset: 4
>>   COMBINEDBITS         = allot(DWord),  -- offset: 8
>> ------------------------
>> -- These are bits and are all combined into the above DWord
>> --  fBinary            1 BIT
>> --  fParity            1 BIT
>> --  fOutxCtsFlow       1 BIT
>> --  fOutxDsrFlow       1 BIT
>> --  fDtrControl        2 BITS
>> --  fDsrSensitivity    1 BIT
>> --  fTXContinueOnXoff  1 BIT
>> --  fOutX              1 BIT
>> --  fInX               1 BIT
>> --  fErrorChar         1 BIT
>> --  fNull              1 BIT
>> --  fRtsControl        2 BIT
>> --  fAbortOnError      1 BIT
>> --  fDummy            17 BITS
>> --                    -- which totals up to 32 bits ( a DWord )
>> ------------------------
>>   wReserved            = allot(Word),   -- offset: 12
>>   XonLim               = allot(Word),   -- offset: 14
>>   XoffLim              = allot(Word),   -- offset: 16
>>   ByteSize             = allot(Byte),   -- offset: 18
>>   Parity               = allot(Byte),   -- offset: 19
>>   StopBits             = allot(Byte),   -- offset: 20
>>   XonChar              = allot(Byte),   -- offset: 21
>>   XoffChar             = allot(Byte),   -- offset: 22
>>   ErrorChar            = allot(Byte),   -- offset: 23
>>   EofChar              = allot(Byte),   -- offset: 24
>>   EvtChar              = allot(Byte),   -- offset: 25
>>   wReserved1           = allot(Word)    -- offset: 26
>>   SIZE_OF_DCB=allotted_size()
>> -- The size will be #1C or 28 bytes
>> integer lpDCB
>>         lpDCB=allocate_struct(SIZE_OF_DCB)
>>
>>    Bernie