D3D9 Test [EndScene don't work]

#pragma once
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
#include <windows.h>
#include <cstdio>
#include <d3d9.h>
#include <d3dx9.h>

typedef HRESULT(__stdcall* EndScene_t)(LPDIRECT3DDEVICE9);
EndScene_t pEndScene;

void *DetourFunc(BYTE *src, const BYTE *dst, const int len) // credits to *************
{
BYTE *jmp = (BYTE*)malloc(len+5);
DWORD dwback;
VirtualProtect(src, len, PAGE_READWRITE, &dwback);
memcpy(jmp, src, len); jmp += len;
jmp[0] = 0xE9;
*(DWORD*)(jmp+1) = (DWORD)(src+len - jmp) - 5;
src[0] = 0xE9;
*(DWORD*)(src+1) = (DWORD)(dst - src) - 5;
VirtualProtect(src, len, dwback, &dwback);
return (jmp-len);
}

const D3DCOLOR txtPink = D3DCOLOR_ARGB(255, 255, 0, 255); // Alpha, Rot, Grün, Blau

void DrawRect (LPDIRECT3DDEVICE9 Device_t, int X, int Y, int L, int H, D3DCOLOR color)
{
D3DRECT rect = {X, Y, X+L, Y+H};
Device_t->Clear(1, &rect, D3DCLEAR_TARGET, color, 0, 0); // bei Google gibt’s näheres
}








HRESULT __stdcall hkEndScene(LPDIRECT3DDEVICE9 pDevice) 
{
	DrawRect ( pDevice, 10, 10, 200, 200, txtPink);
	return pEndScene(pDevice);
}

void InitHook()
{
	HMODULE hModule = NULL;
	while( !hModule )
	{
		hModule = GetModuleHandleA( "d3d9.dll" ); // Handle zur DLL holen
		Sleep( 100 ); // 100ms warten
	}
	pEndScene = ( EndScene_t )DetourFunc((PBYTE) 0x71a8d507,(PBYTE)hkEndScene, 5);
}

int WINAPI DllMain(HINSTANCE hInst,DWORD reason,LPVOID reserved)
{
 switch(reason)
 {
 case DLL_PROCESS_ATTACH:
	CreateThread(0, 0, (LPTHREAD_START_ROUTINE) InitHook, 0, 0, 0);
 break;
 }
 return true;
}

pEndScene = ( EndScene_t )DetourFunc((PBYTE) 0x71a8d507,(PBYTE)hkEndScene, 5);