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DaHandy
Newbie cheater
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Joined: 03 Nov 2007
Posts: 18
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 Posted: Tue Nov 30, 2010 11:59 am Post subject: C++ ReadProcessMemory with pointers? |
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Hi!
I'm a beginner with C++ language. Now I'm trying to code a program that checks 6 characters that are at a non-static adress which has pointer.
Here is the info that is known:
The address of the pointer: 0x005F2D24
Window: xXx
I want to get 6 characters from the non-static address. Example: A string of numbers that is "567834" (DEC).
I have tried this:
| Code: | #include <windows.h>
#include <iostream>
#include <string.h>
using namespace std;
int main()
{
LONG pointer1 = 0x005F2D24;
string pointer1_p = "0x005F2D24";
HWND hwnd;
HANDLE phandle;
DWORD pid;
string point1;
SIZE_T stBytes = 0;
hwnd = FindWindow(NULL, "xXx");
if (hwnd != 0) {
GetWindowThreadProcessId(hwnd, &pid);
phandle = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
} else {
cout << "xXx is not opened.";
cin.get();
return 0;
}
if (phandle != 0) {
ReadProcessMemory(phandle, (LPVOID)pointer1, &point1, 4, &stBytes);
cout << "Pointer 1: " + pointer1_p << endl;
cout << "Pointer 1 points to " + point1;
cin.get();
} else {
cout << "Couldn't get a handle";
cin.get();
}
} |
The program crashes as it tries to cout point1. Why is this? I'm using DEV-C++.
Could someone please finish my code so it gives me 6 characters that are at the pointed, non-static address?
Thanks in advance!
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hcavolsdsadgadsg
I'm a spammer
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Joined: 11 Jun 2007
Posts: 5801
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| Posted: Tue Nov 30, 2010 2:14 pm Post subject: |
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Don't use dev c++, it's hideously outdated. Just get visual studio. it has a free version and is pretty much the best you can get.
Actually, I'm surprised you crash
| Code: | cout << "Pointer 1: " + pointer1_p << endl;
cout << "Pointer 1 points to " + point1; |
because this probably shouldn't compile in the first place
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DaHandy
Newbie cheater
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Joined: 03 Nov 2007
Posts: 18
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| Posted: Tue Nov 30, 2010 2:39 pm Post subject: |
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Here is my new code but it still gives me the wrong address that the pointer should be pointing at (and of course a wrong value):
| Code: | #include <windows.h>
#include <iostream>
#include <string.h>
using namespace std;
int main()
{
char* pointer1_p = "0x005F2D24";
HWND hwnd;
HANDLE phandle;
DWORD pid;
char* point1[4];
char* value[6];
SIZE_T stBytes = 0;
/* Get window */
hwnd = FindWindow(NULL, "xXx");
if (hwnd != 0) {
GetWindowThreadProcessId(hwnd, &pid);
phandle = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
} else {
cout << "xXx is not opened.";
cin.get();
return 0;
}
if (phandle != 0) {
cout << pointer1_p << endl; //Print the pointer
ReadProcessMemory(phandle, (LPCVOID)pointer1_p, &point1, 4, &stBytes); //Get the address that the pointer is pointing at
cout << point1 << endl; //Print the address that the pointer is pointing at
ReadProcessMemory(phandle, (LPVOID)point1, &value, 6, &stBytes); //Get the value that is in the address pointed by the pointer
cout << value << endl; //Print the value
cin.get();
} else {
cout << "Couldn't get a handle";
cin.get();
}
}
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hcavolsdsadgadsg
I'm a spammer
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Joined: 11 Jun 2007
Posts: 5801
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| Posted: Tue Nov 30, 2010 2:50 pm Post subject: |
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the second argument you are trying to pass for the first ReadProcessMemory is not what you think it is.
| Code: | | char* pointer1_p = "0x005F2D24"; |
can you figure out what is wrong with this?
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DaHandy
Newbie cheater
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Joined: 03 Nov 2007
Posts: 18
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| Posted: Tue Nov 30, 2010 2:54 pm Post subject: |
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| slovach wrote: | the second argument you are trying to pass for the first ReadProcessMemory is not what you think it is.
| Code: | | char* pointer1_p = "0x005F2D24"; |
can you figure out what is wrong with this? |
Should it be
| Code: | | int pointer1_p = 0x005F2D24; |
?
EDIT: Got it working! Now it prints the correct number (DEC):
| Code: | #include <windows.h>
#include <iostream>
#include <string.h>
using namespace std;
int main()
{
int point1;
char* value[4];
SIZE_T stBytes = 0;
HWND hwnd;
HANDLE phandle;
DWORD pid;
hwnd = FindWindow(NULL, "xXx");
if (hwnd != 0) {
GetWindowThreadProcessId(hwnd, &pid);
phandle = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
} else {
cout << "xXx is not opened.";
cin.get();
return 0;
}
if (phandle != 0) {
cout << "The pointer is 0x005F2D24" << endl; //Print the pointer
ReadProcessMemory(phandle, (LPVOID)0x005F2D24, &point1, 4, &stBytes); //Get the address that the pointer is pointing at
cout << "The pointer is pointing at " << point1 << " (DEC)" << endl; //Print the address that the pointer is pointing at
ReadProcessMemory(phandle, (LPVOID)point1, &value, 6, &stBytes); //Get the value that is in the address pointed by the pointer
cout << "The value in the non-static address is " << (char*)value << endl << endl; //Print the value
cout << "Press ENTER to exit." << endl;
cin.get();
} else {
cout << "Couldn't get a handle";
cin.get();
}
} |
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