下面这段代码是什么语言，用什么工具打包成dll?
library DSounds;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
Windows,
SysUtils,
Classes;
function DSoundsCode():Integer ;stdcall;
var
hDSound: Cardinal;
pDirectSoundCreate: Pointer;
hWinmm: Cardinal;
pmidiStreamOpen: Pointer;
pwaveOutWrite: Pointer;
lp: Cardinal;
begin
hDSound := LoadLibrary('DSound.dll');
if hDSound > 0 then
pDirectSoundCreate := GetProcAddress(hDSound, 'DirectSoundCreate');
if pDirectSoundCreate <> nil then
begin
VirtualProtect(pDirectSoundCreate, 3, PAGE_EXECUTE_READWRITE, lp);
Move(#$C2#$0C#$00, pDirectSoundCreate^, 3);
end;
hWinmm := LoadLibrary('Winmm.dll');
if hWinmm > 0 then
pmidiStreamOpen := GetProcAddress(hWinmm, 'midiStreamOpen');
if pmidiStreamOpen <> nil then
begin
VirtualProtect(pmidiStreamOpen, 3, PAGE_EXECUTE_READWRITE, lp);
Move(#$C2#$04#$00, pmidiStreamOpen^, 3);
end;
if hWinmm > 0 then
pwaveOutWrite := GetProcAddress(hWinmm, 'waveOutWrite');
if pwaveOutWrite <> nil then
begin
VirtualProtect(pwaveOutWrite, 3, PAGE_EXECUTE_READWRITE, lp);
Move(#$C2#$0C#$00, pwaveOutWrite^, 3);
end;
Result := 1597;
end;
{$R *.res}
exports DSoundsCode;
begin
end.
