from ANSI_STRING to PAnsichar

[mohfa]

if i've this ANSI_STRING type :

Delphi-Quellcode:

type
PANSI_STRING = ^ANSI_STRING;
  ANSI_STRING = record
    Length: Word;
    MaximumLength: Word;
    Buffer: PAnsiChar;
  end;

How could i pass its Value ( ANSI_STRING ) to a PAnsiChar ?

thank you

[mkinzler]

Use Buffer

[mohfa]

But how about the Length and MaximumLength ?

[himitsu]

ANSI_STRING to String/PChar

Delphi-Quellcode:

var A: PANSI_STRING;
  S: AnsiString;
  P: PAnsiChar;

SetString(S, A.Buffer, A.Length);

P := PAnsiChar(S);

ANSI_STRING are not terminated with #0


[add]
Length = current length of the string
MaximumLength = maximum size of the buffer

see at ANSI_STRING

[mohfa]

Thank you himitsu . i think i'm confused here :

What i wanted is :

i use the ANSI_STRING in a C project declared as follows :

Code:

typedef struct _SCANNER_REPLY {

       BOOLEAN SafeToOpen;
       ANSI_STRING FileName;
} SCANNER_REPLY, *PSCANNER_REPLY;

Only to print out the Current FileName exmp : c:\mytextfile.txt

so the result in c :

Code:

NTSTATUS status; 
SCANNER_REPLY replyMessage; 
status = RtlUnicodeStringToAnsiString(&replyMessage.FileName, &FileI->Name, TRUE);
    
   if (NT_SUCCESS( status )) {
        DbgPrint("Current File: %s\n", replyMessage.FileName.Buffer);
/*
 this will Print Out the Current FileName ** Current File: \Device\HarddiskVolume1\myfile.txt **
*/
        RtlFreeAnsiString(&replyMessage.FileName);
      }

and in Delphi i declared as follows :

Delphi-Quellcode:

_SCANNER_REPLY = record
SafeToOpen: BOOLEAN;
FileName:ANSI_STRING ; // ANSI_STRING is declared as in my 1st thread
end;
SCANNER_REPLY = _SCANNER_REPLY; 
PSCANNER_REPLY = ^_SCANNER_REPLY;

But when i used your methode in your last reply P will print out the Whole FileName content Buffer , But i only need to print out the filename as in C result

any suggestion for that ?