WideString to Hexa Decimal Value

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5 total messages Started by bar Sat, 24 May 2008 18:20

#272

Author: bar
Date: Sat, 24 May 2008 18:20

18 lines
1555 bytes

Hello,
Hope everybody good.

I got a situation, where i want to store a arabic text in the registry. If 
the PC is localized to arabic, it works fine. But if the PC is not localized 
to arabic, when i assign WideString(Unicode) to registry key
it stores as ???. I tried with String, MultiString Keys in the registry.

I think the only way is to Convert Unicode WideString to related Hexadecimal 
numbers and store in the registry and read this value to display the unicode 
string.

Is there any different approach.

How to convert WideString to its Hexa Decimal number.

Kind Regards
SA

Re: WideString to Hexa Decimal Value

#276

Author: Hans Galema
Date: Mon, 26 May 2008 18:21

23 lines
1419 bytes

bar wrote:

> I think the only way is to Convert Unicode WideString to related Hexadecimal 
> numbers 

Convert the WideString to an AnsiString containing the hexadecimal
representaion of individual bytes.

   WideString WString = ......

   AnsiString HexString;

   BYTE *bptr = (BYTE*)WString.c_bstr();

   while ( *bptr || *(bptr+1) )
      {
      HexString += IntToHex ( (int)*bptr, 2 );

      bptr++;
      bptr++;
      }

   Label6->Caption = HexString;

Re: WideString to Hexa Decimal Value

#275

Author: Hans Galema
Date: Mon, 26 May 2008 18:34

11 lines
1195 bytes

Hans Galema wrote:

Sorry, that should be:

   while ( *bptr || *(bptr+1) )
      {
      HexString += IntToHex ( (int)*bptr, 2 );
      bptr++;
      HexString += IntToHex ( (int)*bptr, 2 );
      bptr++;
      }

Re: WideString to Hexa Decimal Value

#282

Author: Remy Lebeau (TeamB)
Date: Tue, 27 May 2008 20:41

23 lines
1861 bytes

"bar" <shaikakbar250281@yahoo.co.in> wrote in message 
news:48385c4f@newsgroups.borland.com...

> I got a situation, where i want to store a arabic text in the registry.
> If the PC is localized to arabic, it works fine. But if the PC is not
> localized to arabic, when i assign WideString(Unicode) to registry
> key it stores as ???. I tried with String, MultiString Keys in the 
> registry.

'?' characters appear when a Unicode->Ansi conversion is being performed. 
The VCL's TRegistry class does not support WideString at all.  To store 
Unicode data, you will have to use the Win32 API RegSetValueExW() and 
RegQueryValueExW() directly.

> I think the only way is to Convert Unicode WideString to related
> Hexadecimal numbers and store in the registry and read this value
> to display the unicode string.

Not true.


Gambit

Re: WideString to Hexa Decimal Value

#279

Author: sa
Date: Wed, 28 May 2008 00:27

2 lines
1009 bytes

Hello Hans Galema, thanks for reply.
i'll try it.

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