LG

Exemple pris sur le Wiki du site GitHub.

#include <windows.h>
#include <detours.h>
 
// Target pointer for the uninstrumented Sleep API.
//
static VOID(WINAPI * TrueSleep)(DWORD dwMilliseconds) = Sleep;
 
// Detour function that replaces the Sleep API.
//
VOID WINAPI TimedSleep(DWORD dwMilliseconds)
{
  // Save the before and after times around calling the Sleep API.
  DWORD dwBeg = GetTickCount();
  TrueSleep(dwMilliseconds);
  DWORD dwEnd = GetTickCount();
 
  OutputDebugStringW(L"My output string.\n");
}
 
int main()
{
  if (DetourIsHelperProcess())
  {
    return TRUE;
  }
 
  DetourRestoreAfterWith();
 
  DetourTransactionBegin();
  DetourUpdateThread(GetCurrentThread());
  DetourAttach(&(PVOID&)TrueSleep, TimedSleep);
  DetourTransactionCommit();
 
  Sleep(100);
  Sleep(100);
  Sleep(100);
 
  DetourTransactionBegin();
  DetourUpdateThread(GetCurrentThread());
  DetourDetach(&(PVOID&)TrueSleep, TimedSleep);
  DetourTransactionCommit();
 
  return 0;
}

Sortie dans la console :

My output string.
My output string.
My output string.