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voidaccess
How do I cheat?
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Joined: 01 Nov 2013
Posts: 9
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 Posted: Fri Nov 01, 2013 6:05 pm Post subject: Need help getting string value from a hexadecimal addressC++ |
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I am having difficulties getting the string value from an address. I did a text search in cheat engine for an address that contains string values of information I need to read in and modify for a program. However every time I read out the address I get the 4 Byte form of the value instead of text.
Is there way to convert the 4 Byte form to Text like cheat engine does.
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DELETED_USER
Newbie cheater
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Joined: 02 Oct 2013
Posts: 24
Location: Venezuela
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| Posted: Fri Nov 01, 2013 6:16 pm Post subject: |
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| AFAIK; You need to read the number of characters that contains the string as bytes, then you must convert the result (byte by byte) in ASCII or Unicode.
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Dark Byte
Site Admin
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Joined: 09 May 2003
Posts: 25823
Location: The netherlands
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| Posted: Fri Nov 01, 2013 6:35 pm Post subject: |
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Just read the bytes into a compatible string with equal or bigger size
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voidaccess
How do I cheat?
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Joined: 01 Nov 2013
Posts: 9
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| Posted: Sat Nov 02, 2013 1:49 am Post subject: |
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Ty I figured it out now , brain just wasn't working today.
Answer for anyone else curious,
| Code: | std::string* buffer[15];
ReadProcessMemory(fProcess.__HandleProcess, (LPCVOID)(address), &buffer, sizeof(buffer), NULL);
std::cout << (char*)&buffer << std::endl; |
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justa_dude
Grandmaster Cheater
 Reputation: 23
Joined: 29 Jun 2010
Posts: 893
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| Posted: Sat Nov 02, 2013 3:25 pm Post subject: |
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| voidaccess wrote: | Ty I figured it out now , brain just wasn't working today.
Answer for anyone else curious,
| Code: | std::string* buffer[15];
ReadProcessMemory(fProcess.__HandleProcess, (LPCVOID)(address), &buffer, sizeof(buffer), NULL);
std::cout << (char*)&buffer << std::endl; |
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No offense, but this is all kinds of wrong. Try replacing std::string with unsigned char.
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cinderstorm
How do I cheat?
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Joined: 15 Jan 2014
Posts: 1
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| Posted: Wed Jan 15, 2014 1:57 am Post subject: help |
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I'm encountering the same issue but I can't tell where I'm not scooping up the value. I'm looking at an address that has appended multiple dwords and displays it in Unicode.
AHK Code
| Code: | tmp = 0x11E3F4
string .= memory.readString(tmp, length := 14, encoding := "utf-8") |
| Code: |
readString(address, length := 0, encoding := "utf-8", aOffsets*)
{
size := (encoding ="utf-16" || encoding = "cp1200") ? 2 : 1
VarSetCapacity(buffer, length ? length * size : size, 0)
if aOffsets.maxIndex()
address := this.getAddressFromOffsets(address, aOffsets*)
If !length ; read until null terminator is found or something goes wrong
{
Loop
{
success := DllCall("ReadProcessMemory", "UInt", this.hProcessCurrent, "UInt", address + (A_index - 1) * size, "str", buffer, "Uint", size, "Ptr", 0)
if (ErrorLevel || !success || "" = char := StrGet(&buffer, 1, encoding)) ; null terminator = ""
break
string .= char
}
}
Else ; will read X length
{
DllCall("ReadProcessMemory", "UInt", this.hProcessCurrent, "UInt", address, "str", buffer, "Uint", length * size, "Ptr", 0)
string := StrGet(&buffer, length, encoding)
}
return string
}
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I understand that this is not the AHK forums, but I'm trying to figure out how to extract this list of values (as strings) that I see at a given address. Because I'm fairly new to memory reading and writing, I have no clue where to even start.
Mostly what I can see from the memory address is a consistent appending of the text. For example:
Type
String
Value
Rabbit 123sDuck 80sFeet 12s
Value is currently set as a String[256] so it can read the what I'm guessing is an array of values created in assembly... but I can only guess at that because it seems logical and looking at the stack that there's the beginning of a dword, some letters 2 letters at a time (I'm guessing 4 bytes each) and a pointer at the end. The memory address that shows the values grows dynamically based on the number of objects that are "active".
Please help - I see that it might have something to do with the function I'm using but I'm kind of lost. I would prefer being able to reference the exact item rather than parse out the string but I haven't been able to figure out to do that. I appreciate any help and all help/guidance on this matter.
Thank you,
cinderstorm
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