Explore My Other Channel for More Cool and Valuable Insights
👉 Youtube Learn Tech Tips👉 Tiktok
👉 Facebook:- Today I will show you another way using DLL Injection with parameters
- Change NewWndProc function.
Explore My Other Channel for More Cool and Valuable Insights
👉 Youtube Learn Tech Tips👉 Tiktok
👉 Facebook:Data Structure
typedef struct tag_locksomeoneuseskill
{
int iIndex; // skill ID
int iPos; // vị trí monster trong mảng NPC
}Locksomeoneuseskill; // struct tham số cho function LockSomeOneUseSkill
Source code
// dllmain.cpp : Defines the entry point for the DLL application.
/* ****************************************
* Author: Zidane (huuvi168@gmail.com)
* Last modified: 2015-06-08
* ****************************************/
/************************************************************************
VịLH - NewWndProc - 23/05/2013
Hàm nhận các sự kiện bên chương trình chính gửi qua
params:
+ HWND: HWnd cửa sổ đang chọn
+ UINT: Message của chương trình
+ WPARAM: Tham số wparam
+ LPARAM: Tham số lparam
return:
*************************************************************************/
LRESULT CALLBACK NewWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch(uMsg)
{
case WM_COPYDATA: // get data from shared memory area
COPYDATASTRUCT* pcds = (COPYDATASTRUCT *)lParam;
if (pcds->dwData == DATA_LOCKSOMEONEUSESKILL)
{
iIdSkill = ((Locksomeoneuseskill *)(pcds->lpData))->iIndex;
iPosition = ((Locksomeoneuseskill *)(pcds->lpData))->iPos;
}
break;
}
if (!hWnd)
return CallWindowProc(OldWndProc, hWnd, uMsg, wParam, lParam);
DWORD pid;
GetWindowThreadProcessId(hWnd, &pid);
// Ứng dụng gửi rất nhiều message nhưng chỉ xử lý message
// WM_HOOK_WRITE thôi
if (uMsg == WM_HOOK_WRITE)
{
switch (wParam)
{
case WPARAM_LOCKSOMEONEUSESKILL:
if (iPosition > 0 && iIdSkill > 0)
LockSomeOneUseSkill(pid, iPosition, iIdSkill);
break;
}
}
return CallWindowProc(OldWndProc, hWnd, uMsg, wParam, lParam);
}
}
Main function
COPYDATASTRUCT MyCDS;
Locksomeoneuseskill locksomeoneStruct;
locksomeoneStruct.iIndex = 128;
locksomeoneStruct.iPos = 10488;
MyCDS.dwData = DATA_LOCKSOMEONEUSESKILL;
MyCDS.cbData = sizeof(locksomeoneStruct);
MyCDS.lpData = &locksomeoneStruct;
// copy data locksomeoneuseskill
::SendMessage(m_hCurrentWnd, WM_COPYDATA, 0, reinterpret_cast<lparam>(&MyCDS));
// using function looksomeoneusekill
::SendMessage(m_hCurrentWnd, WM_HOOK_WRITE, WPARAM_LOCKSOMEONEUSESKILL, 1);
Description
WM_COPYDATA constant will be reference to below source
case WM_COPYDATA: // get data from shared memory area
COPYDATASTRUCT* pcds = (COPYDATASTRUCT *)lParam;
if (pcds->dwData == DATA_LOCKSOMEONEUSESKILL)
{
iIdSkill = ((Locksomeoneuseskill *)(pcds->lpData))->iIndex;
iPosition = ((Locksomeoneuseskill *)(pcds->lpData))->iPos;
}
View more: https://learn-tech-tips.blogspot.com/2015/08/dll-injection-exmaple.html
Are you interested in topic DLL injection and DLL injection example from Webzone Tech Tips? If you have any thoughts or questions, please share them in the comment section below. I would love to hear from you and chat about it
Webzone Tech Tips Zidane
