DirectX 8 Hook

[napsterxx]

So habe wieder bissi weiter gesucht, und nun komme ich soweit, das mein Hook erfolgreich gesetzt wird - laut MessageBox
BlueHookLib.pas

Delphi-Quellcode:

library d3dxhook;

{ 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,
  BlueHookLib,
  BlueFileLog,
  Direct3D8,
  d3dx8;

{$R *.res}

type
  Direct3DCreate8 = function( D3D_SDK_VERSION: cardinal ): IDirect3D8; stdcall;

var
  oldDirect3DCreate8 : Direct3DCreate8;
  newDirect3DCreate8 : Direct3DCreate8;

  pIDirect3D8      : IDirect3D8;

function callbackDirect3DCreate8( D3D_SDK_VERSION: cardinal ): IDirect3D8; stdcall;
begin
  Result := oldDirect3DCreate8(D3D_SDK_VERSION);
  MessageBox(0, 'callbackDirect3DCreate8', 'Information', MB_ICONINFORMATION);
end;

procedure DllMain(dwReason: DWord);
var
  gHook : CDeepHook;               
  gLog  : CDeepLog;
begin
  case dwReason of
    DLL_PROCESS_ATTACH:
    begin
      gHook := CDeepHook.Create(gLog);
      oldDirect3DCreate8 := GetProcAddress(GetModuleHandle('d3d8.dll'), 'Direct3DCreate8');
      if not(gHook.HookJMP( @oldDirect3DCreate8, @callbackDirect3DCreate8, @newDirect3DCreate8)) then
        MessageBox(0, 'Direct3DCreate8 hooking failed', 'Information', MB_ICONINFORMATION);
    end;
  end;
end;

begin
  DllProc := @DllMain;
  DllMain(DLL_PROCESS_ATTACH);
end.

Also ich bekomme eine Message: "Direct3DCreate8 hooked", jedoch keine "callbackDirect3DCreate8". Woran könnte das liegen?