 |
Cheat Engine
The Official Site of Cheat Engine
|
| View previous topic :: View next topic |
| Author |
Message |
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
 Posted: Tue Jun 24, 2008 6:31 pm Post subject: [C++] GUI/DLL help |
 |
|
Hi,
I remember this trainer in the maplestory section (irrelevant) that was a gui in dll form. How is it that you can do that with pure win32 api? I tried something like upon DLL_PROCESS_ATTACH, createthread for WinMain, but I tried injecting it into notepad and no window came up 
Any help is appreciated!
Thanks,
Drops.
|
|
| Back to top |
|
 |
oib111
I post too much
 Reputation: 0
Joined: 02 Apr 2007
Posts: 2947
Location: you wanna know why?
|
| Posted: Tue Jun 24, 2008 6:35 pm Post subject: |
|
|
Can we see your code?
_________________
| 8D wrote: |
cigs dont make people high, which weed does, which causes them to do bad stuff. like killing |
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Tue Jun 24, 2008 6:38 pm Post subject: |
|
|
| oib111 wrote: | | Can we see your code? |
| Code: | #define WIN32_LEAN_AND_MEAN
#include <windows.h>
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);
BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
{
switch(ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)WinMain,NULL,0,NULL);
break;
default:
;
}
return TRUE;
}
const char g_szClassName[] = "myWindowClass";
HBRUSH g_hbrBackground = CreateSolidBrush(RGB(0,0,0));
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;
HBRUSH bgColor = CreateSolidBrush(RGB(0,0,0));
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)bgColor;
// wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = g_szClassName;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
if(!RegisterClassEx(&wc))
{
MessageBox(NULL,"Window Registration Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
hwnd = CreateWindowEx(WS_EX_CLIENTEDGE|WS_EX_APPWINDOW, g_szClassName, "Trainer", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 250, 250, NULL, NULL, hInstance, NULL);
if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return Msg.wParam;
} |
I'm just testing if I can do this first before making the whole gui, so it's just a window right now. If I make it as an exe it works just fine.
|
|
| Back to top |
|
|
lurc
Grandmaster Cheater Supreme
 Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
|
| Posted: Tue Jun 24, 2008 6:40 pm Post subject: |
|
|
on DLL_PROCESS_ATTACH simply create a thread that initializes a window.
You can either use pure Win32 API such as WNDCLASSEX struct, RegisterClassEx, CreateWindowEx, etc.
Or you can make dialog's through resource's and just call DialogBox.
Don't use WinMain, that is the entry point to a Windows Application.
_________________
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Tue Jun 24, 2008 6:53 pm Post subject: |
|
|
| lurc wrote: | on DLL_PROCESS_ATTACH simply create a thread that initializes a window.
You can either use pure Win32 API such as WNDCLASSEX struct, RegisterClassEx, CreateWindowEx, etc.
Or you can make dialog's through resource's and just call DialogBox.
Don't use WinMain, that is the entry point to a Windows Application. |
Whew! Thanks!
Just a question: I changed the function parameters to just LPVOID lpParam, but then I don't have hInstance, so I just set all the functions that needed it to NULL (I also just changed ShowWindow(hwnd,nCmdShow) to ShowWindow(hwnd,SW_SHOW), but I don't think that will change anything). Will setting the hInstance to NULL affect anything? If so, how can I get the hInstance? (it works fine when injected if I just have NULL)
|
|
| Back to top |
|
|
lurc
Grandmaster Cheater Supreme
Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
|
| Posted: Tue Jun 24, 2008 6:57 pm Post subject: |
|
|
ShowWindow with the SW_SHOW is needed because nCmdShow doesn't exist.
Get the hInstance with GetModuleHandle:
| Code: | | HINSTANCE hInstance = GetModuleHandle( NULL ); |
_________________
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Tue Jun 24, 2008 7:11 pm Post subject: |
|
|
| lurc wrote: | ShowWindow with the SW_SHOW is needed because nCmdShow doesn't exist.
Get the hInstance with GetModuleHandle:
| Code: | | HINSTANCE hInstance = GetModuleHandle( NULL ); |
|
What would happen if I had just put NULL though? Like future problems, possible errors, etc o-o Just wanna know =/
|
|
| Back to top |
|
|
STN
I post too much
 Reputation: 43
Joined: 09 Nov 2005
Posts: 2676
|
| Posted: Wed Jun 25, 2008 5:41 am Post subject: |
|
|
| lurc wrote: | ShowWindow with the SW_SHOW is needed because nCmdShow doesn't exist.
|
It DOES exist and passing SW_SHOW isn't necessary. Passing nCmdShow(in the WinMain aswell) means giving permission to whoever is running your program to specify whether or not they want your window to start off visible, maximized, minimized.
| Quote: | | What would happen if I had just put NULL though? Like future problems, possible errors, etc o-o Just wanna know =/ |
Putting NULL in GetModuleHandle() ?. It will return the hInstance of the calling process.
_________________
|
|
| Back to top |
|
|
tombana
Master Cheater
![]() Reputation: 2
Joined: 14 Jun 2007
Posts: 456
Location: The Netherlands
|
| Posted: Wed Jun 25, 2008 6:52 am Post subject: |
|
|
Yes, GetModuleHandle(NULL) returns the hInstance of the process.
The hInstance of the dll that's injected is passed to DllMain I believe. (you've called it hModule in you're code)
|
|
| Back to top |
|
|
lurc
Grandmaster Cheater Supreme
Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
|
| Posted: Wed Jun 25, 2008 8:59 am Post subject: |
|
|
| STN wrote: | | lurc wrote: | ShowWindow with the SW_SHOW is needed because nCmdShow doesn't exist.
|
It DOES exist and passing SW_SHOW isn't necessary. Passing nCmdShow(in the WinMain aswell) means giving permission to whoever is running your program to specify whether or not they want your window to start off visible, maximized, minimized. |
I didn't mean that nCmdShow didn't exist in the WinMain function, because i know it exists there. But within a DLL you don't use WinMain, so the parameter doesn't exist.
_________________
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Wed Jun 25, 2008 10:37 am Post subject: |
|
|
Hey,
I'm trying to make it so that when my checkbox is checked, it freezes the value, rather than just setting it.
| Code: | if (LOWORD(wParam) == POP_CHECK)
{
int POPState = SendMessage((HWND)lParam,BM_GETCHECK,0,0);
if(POPState == BST_CHECKED)
{
unsigned long popval = (unsigned long)(GetDlgItemInt(hwnd,WEIGHT_EDIT,NULL,FALSE));
//copy popval into desired addy
Sleep(50);
}
if(POPState == BST_UNCHECKED)
{
//copy original value
Sleep(50);
}
} |
But if I add a while loop:
| Code: | if (LOWORD(wParam) == POP_CHECK)
{
int POPState = SendMessage((HWND)lParam,BM_GETCHECK,0,0);
while(POPState == BST_CHECKED)
{
unsigned long popval = (unsigned long)(GetDlgItemInt(hwnd,WEIGHT_EDIT,NULL,FALSE));
//copy popval into desired addy
Sleep(50);
}
while(POPState == BST_UNCHECKED)
{
//copy original value
Sleep(50);
}
} |
it will just stop responding as soon as I set one value. I can set values fine, but freezing them is another matter.
|
|
| Back to top |
|
|
oib111
I post too much
Reputation: 0
Joined: 02 Apr 2007
Posts: 2947
Location: you wanna know why?
|
| Posted: Wed Jun 25, 2008 11:02 am Post subject: |
|
|
Try doing a do while loop. Something like this:
| Code: |
int POPState = SendMessage((HWND)lParam,BM_GETCHECK,0,0);
if(POPState == BST_CHECKED)
{
do {
unsigned long popval = (unsigned long)(GetDlgItemInt(hwnd,WEIGHT_EDIT,NULL,FALSE));
//copy popval into desired addy
Sleep(50);
POPState = SendMessage((HWND)lParam, BM_GETCHECK, 0, 0);
} while(POPState == BST_CHECKED);
}
|
Also, may I suggest you use the handle to the checkbox rather than the lParam. It's much safter. And you don't need to typecast the lParam because lParam is the handle to the window that sent the message.
_________________
| 8D wrote: |
cigs dont make people high, which weed does, which causes them to do bad stuff. like killing |
|
|
| Back to top |
|
|
lurc
Grandmaster Cheater Supreme
Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
|
| Posted: Wed Jun 25, 2008 11:23 am Post subject: |
|
|
Create a new thread to loop.
_________________
|
|
| Back to top |
|
|
atom0s
Moderator
 Reputation: 205
Joined: 25 Jan 2006
Posts: 8587
Location: 127.0.0.1
|
| Posted: Wed Jun 25, 2008 4:29 pm Post subject: |
|
|
Creating a loop there will stop the code from functioning because it will never exit the loop until you uncheck the box, so it will never get to handle other messages and such.
If you need it to loop, do what lurc said, create a thread so that it has the ability to loop that code, while still handling other messages.
_________________
- Retired. |
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Wed Jun 25, 2008 7:41 pm Post subject: |
|
|
| Wiccaan wrote: | Creating a loop there will stop the code from functioning because it will never exit the loop until you uncheck the box, so it will never get to handle other messages and such.
If you need it to loop, do what lurc said, create a thread so that it has the ability to loop that code, while still handling other messages. |
Ok, but how would my new thread read the messages sent to my wndproc (wouldn't I have to check the messages first to loop, or would I handle the new thread like a function that I would just call)? Is there a specific winapi for this? (I've never done this before, bear with me please).
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
