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Hi all , i am hooking to CopyItems function ,but my problem with this is while returning the real CopyItems Function in the Callback am getting the Following Error:
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call.  
This is usually a result of calling a function declared with one calling convention with a function pointer 
declared with a different calling convention.
my code is as below please go through it and help me.
#include "stdafx.h"
#include <windows.h>
#include "MinHook.h"
#include <Winternl.h>
#include <stdio.h>
#include <shlwapi.h>
#include <tchar.h>
#include <string.h>
#include <psapi.h>
#include <strsafe.h>
#include <Shobjidl.h>
#if defined _M_X64
#pragma comment(lib, "libMinHook.x64.lib")
#elif defined _M_IX86
#pragma comment(lib, "libMinHook.x86.lib")
PVOID GetInterfaceMethod(PVOID intf, DWORD methodIndex)
  return *(PVOID*)(*(DWORD*)intf + methodIndex * 4);
typedef HRESULT (WINAPI  *CopyItemsNext)(IUnknown *punkItems,IShellItem *psiDestinationFolder);
CopyItemsNext Real_CopyItems = NULL;
CopyItemsNext Actual_CopyItems;

HRESULT WINAPI CopyItemsCallback(IUnknown *punkItems,IShellItem *psiDestinationFolder)
    MessageBoxW(NULL,L"CopyItems Function Called", L"HookedCopyItemS", MB_OK);
    return Real_CopyItems(punkItems, psiDestinationFolder);

HRESULT WINAPI CoCreateInstanceCallback(REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID riid, LPVOID *ppv)
   const char *IFileOperation_GUID = "{3AD05575-8857-4850-9277-11B85BDB8E09}";
   char GUIDString[64];
   HRESULT HR = Real_CoCreateInstance(rclsid, pUnkOuter, dwClsContext, riid, ppv);
   sprintf_s(GUIDString,64, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}\0",
    rclsid.Data1, rclsid.Data2, rclsid.Data3,
    rclsid.Data4[0], rclsid.Data4[1],
    rclsid.Data4[2], rclsid.Data4[3],
    rclsid.Data4[4], rclsid.Data4[5],
    rclsid.Data4[6], rclsid.Data4[7]);
   if(strcmp(GUIDString, IFileOperation_GUID) == 0)
       MessageBoxA(NULL, "IFileOperation_GUID Found", GUIDString, MB_OK);
       if(Real_CopyItems == NULL)
        Actual_CopyItems = (CopyItemsNext)GetInterfaceMethod(*ppv, 17);
        MessageBoxA(NULL,"AFTER GetInterfaceMethod", "TEST", MB_OK);
        if (MH_CreateHook(Actual_CopyItems, &CopyItemsCallback, reinterpret_cast<void**>(&Real_CopyItems)) != MH_OK)
            MessageBoxW(NULL, L"Failed CreateHook Real_CopyItem", L"Info!", MB_ICONWARNING|MB_OK);
        if (MH_EnableHook(Actual_CopyItems) != MH_OK)
            MessageBoxW(NULL, L"Failed EnableHook Real_CopyItem", L"Info!", MB_ICONWARNING|MB_OK);
return HR;
//DllMain Function 
BOOL APIENTRY DllMain(HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved)
switch (ul_reason_for_call)
    if (MH_Initialize() != MH_OK)
        MessageBoxW(NULL, L"Failed Initialize", L"Info!", MB_ICONWARNING|MB_OK);    
    if (MH_CreateHook(&CoCreateInstance, &CoCreateInstanceCallback, reinterpret_cast<void**>(&Real_CoCreateInstance)) != MH_OK)
        MessageBoxW(NULL,L"Failed MH_CreateHook CoCreateInstance",L"Info!",MB_ICONWARNING|MB_OK);
    if (MH_EnableHook(&CoCreateInstance) != MH_OK)
        MessageBoxW(NULL,L"Failed MH_EnableHook StartDocA",L"Info!",MB_ICONWARNING|MB_OK);
    if (MH_Uninitialize() != MH_OK)
    if (MH_DisableHook(Actual_CopyItems) != MH_OK)
    if (MH_DisableHook(&CoCreateInstance) != MH_OK)
return TRUE;
Posted 16-Aug-12 20:01pm
Edited 16-Aug-12 20:04pm

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