Function GBCht2Chs(GBStr: String): AnsiString; {GBK繁體轉(zhuǎn)簡(jiǎn)體}
Var
  len:integer;
  pGBCHTChar: PChar;
  pGBCHSChar: PChar;
Begin
  pGBCHTChar := PChar(GBStr);
  Len := SizeOf(pGBCHTChar);
  GetMem(pGBCHSChar, Len  + 1);
  ZeroMemory(pGBCHSChar, Len  + 1);

  //GB CHS -> GB CHT
  LCMapString($804, LCMAP_SIMPLIFIED_CHINESE, pGBCHTChar, -1, pGBCHSChar, 2147483647 );

  Result := String(pGBCHSChar);
  FreeMem(pGBCHSChar);
End;

//----------------------------------------------

procedure TForm1.Button1Click(Sender: TObject);
begin
  Memo2.Text := GBCht2Chs( Memo1.Text );
end;

unit BIG5TOGB;
interface

uses
Windows;

function GBCht2Chs(GBStr: string): AnsiString;
function GBChs2Cht(GBStr: string): AnsiString;

implementation

function GBCht2Chs(GBStr: string): AnsiString;
{進(jìn)行GBK繁體轉(zhuǎn)簡(jiǎn)體}
var
Len: integer;
pGBCHTChar: PChar;
pGBCHSChar: PChar;
begin
pGBCHTChar := PChar(GBStr);
Len := MultiByteToWideChar(936, 0, pGBCHTChar, -1, nil, 0);
GetMem(pGBCHSChar, Len * 2 + 1);
ZeroMemory(pGBCHSChar, Len * 2 + 1);
//GB CHS -> GB CHT
LCMapString($804, LCMAP_SIMPLIFIED_CHINESE, pGBCHTChar, -1, pGBCHSChar, Len * 2);
result := string(pGBCHSChar);
//FreeMem(pGBCHTChar);
FreeMem(pGBCHSChar);
end;

function GBChs2Cht(GBStr: string): AnsiString;
{進(jìn)行GBK簡(jiǎn)體轉(zhuǎn)繁體}
var
Len: integer;
pGBCHTChar: PChar;
pGBCHSChar: PChar;
begin
pGBCHSChar := PChar(GBStr);
Len := MultiByteToWideChar(936, 0, pGBCHSChar, -1, nil, 0);
GetMem(pGBCHTChar, Len * 2 + 1);
ZeroMemory(pGBCHTChar, Len * 2 + 1);
//GB CHS -> GB CHT
LCMapString($804, LCMAP_TRADITIONAL_CHINESE, pGBCHSChar, -1, pGBCHTChar, Len * 2);
result := string(pGBCHTChar);
FreeMem(pGBCHTChar);
//FreeMem(pGBCHSChar);
end;
end.