Cheat Engine Forum Index Cheat Engine
The Official Site of Cheat Engine
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 


C# Trainer Tutorial (With Example)
Goto page Previous  1, 2, 3  Next
 
Post new topic   Reply to topic    Cheat Engine Forum Index -> Cheat Engine Tutorials
View previous topic :: View next topic  
Author Message
KryziK
Expert Cheater
Reputation: 3

Joined: 16 Aug 2009
Posts: 199
PostPosted: Thu Sep 01, 2011 1:46 pm    Post subject: Reply with quote
iMockBa wrote:
Hi.. i want ask how can i read memory by using this script .

i tryed it for writing values & its work perfectly ...but as new on c# i cant find out how to tranceform that script for reading memory .

and other litl question .. in section

int iValue_To_Write = (1000); //Value that we want to write (Step2 requires that you change the value to 1000)

walue to write is inside of script ....& i would like to make that posible to write that value by user inside of TextBox ..... so how can i tranceform String on Int ? if change the cod on

int iValue_To_Write = (TextBox.Text);
i m getting error .

Previously Thanks for any help.


I have included code to read from memory in that snippet.
You would use it by doing:
Code:
int bytesRead; //This will hold the number of bytes that were successfully read
byte[] ThisIs4Bytes = Read(address, 4, out int bytesRead); //Reads 4 bytes to a byte array
int ReadValue = Bitconverter.ToInt32(ThisIs4Bytes); //Converts the byte array to a single integer


You can look here for different types to convert to, such as float, double, etc.
and for the textbox:
Code:
int iValue_To_Write = Int32.Parse(TextBox.Text); // Or Int32.TryParse(...)


However, you may want to take a look at my C# Memory Library which contains newer code and functions, making it easier to use. I'm still in the process of updating it as stated on the page, even though it has almost been a year!
Back to top
View user's profile Send private message
iMockBa
How do I cheat?
Reputation: 0

Joined: 01 Sep 2011
Posts: 3
PostPosted: Thu Sep 01, 2011 3:23 pm    Post subject: Reply with quote
Thanks ...string converting example helped .
But im still trying to understend how work ReadProcessMemory. i m using your code & trying ...but unfortunately. ( Im realy new on C#)
the code i have now is :
Code:
        {
            Process[] aProcesses = Process.GetProcessesByName("Requiem");
            if (aProcesses.Length != 0)
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " found "));
            else
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " not found "));

                oMemory.ReadProcess = aProcesses[0];
                oMemory.Open(); //Open Process
                int Current_HP = Addr.ToDec("00a42358 "); //The static address of the pointer
                int[] Current_HP_Offsets = { 0x3dc, 0xa4}; //Offsets from bottom to top
                uint iValue_To_Read= oMemory.Read((0x00a42358 + 0x3dc) + 0xa4);     
                byte[] bValue_To_Read = BitConverter.GetBytes(iValue_To_Read); //
                LogBox.Text = LogBox.Text + bValue_To_Read;
               

                oMemory.CloseHandle(); //Close Memory Handle
        }



could you please help me to find out where im wrong ?
Previously thanks.
Back to top
View user's profile Send private message
KryziK
Expert Cheater
Reputation: 3

Joined: 16 Aug 2009
Posts: 199
PostPosted: Thu Sep 01, 2011 3:35 pm    Post subject: Reply with quote
iMockBa wrote:
Thanks ...string converting example helped .
But im still trying to understend how work ReadProcessMemory. i m using your code & trying ...but unfortunately. ( Im realy new on C#)
the code i have now is :
Code:
        {
            Process[] aProcesses = Process.GetProcessesByName("Requiem");
            if (aProcesses.Length != 0)
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " found "));
            else
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " not found "));

                oMemory.ReadProcess = aProcesses[0];
                oMemory.Open(); //Open Process
                int Current_HP = Addr.ToDec("00a42358"); //The static address of the pointer
                int[] Current_HP_Offsets = { 0x3dc, 0xa4}; //Offsets from bottom to top
                uint iValue_To_Read= oMemory.Read((0x00a42358 + 0x3dc) + 0xa4);     
                byte[] bValue_To_Read = BitConverter.GetBytes(iValue_To_Read); //
                LogBox.Text = LogBox.Text + bValue_To_Read;
               

                oMemory.CloseHandle(); //Close Memory Handle
        }



could you please help me to find out where im wrong ?
Previously thanks.


It looks like you're trying to read from a pointer.

You should instead use
Code:
{
            Process[] aProcesses = Process.GetProcessesByName("Requiem");
            if (aProcesses.Length != 0)
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " found "));
            else
                LogBox.Text = LogBox.Text + ((" Process " + "Requiem" + " not found "));

                oMemory.ReadProcess = aProcesses[0];
                oMemory.Open(); //Open Process

                int Current_HP = Addr.ToDec("00a42358"); //The static address of the pointer
                int[] Current_HP_Offsets = { 0x3dc, 0xa4}; //Offsets from bottom to top
                byte[] bValue_To_Read= oMemory.PointerRead(Current_HP, 4, Current_HP_Offsets); //Read 4 bytes from Current_HP with the offsets above
                int iValue_To_Read = BitConverter.ToInt32(bValue_To_Read); // Convert byte[] to int
                LogBox.Text = LogBox.Text + iValue_To_Read; //Add the text to the log box
               

                oMemory.CloseHandle(); //Close Memory Handle
        }


Unfortunately it's been so long since I've used this code that I'm not quite sure if I'm forgetting something or not. Hopefully that works. Remember: When reading you store as byte[], and then you have to convert it to what you want using such things as BitConverter.ToInt32(byte[] array), BitConverter.ToDouble(byte[] array), etc.
Back to top
View user's profile Send private message
iMockBa
How do I cheat?
Reputation: 0

Joined: 01 Sep 2011
Posts: 3
PostPosted: Sun Sep 04, 2011 6:11 am    Post subject: Reply with quote
Looks like there s some error inside of class Memory.

im trying to read HP value wich have (1 static adress + Offset1)+Offset2
& always readed value is 0.
But whene i try to read somethink simple wich have only 1 offset im getting exact value .
Back to top
View user's profile Send private message
z03dsk8
How do I cheat?
Reputation: 0

Joined: 22 Jan 2010
Posts: 1
Location: Indonesia
PostPosted: Thu Sep 08, 2011 7:24 pm    Post subject: Reply with quote
iMockBa wrote:
Looks like there s some error inside of class Memory.

im trying to read HP value wich have (1 static adress + Offset1)+Offset2
& always readed value is 0.
But whene i try to read somethink simple wich have only 1 offset im getting exact value .


try this

Code:

            Process[] anProcess = Process.GetProcessesByName("name ur process");
            if (anProcess.Length != 0)
            {

                Process anProcesses = anProcess[0];
                IntPtr readHandle = MemoryAPI.OpenProcess(0x10, 0, (uint)anProcesses.Id);
                IntPtr Base = anProcess[0].MainModule.BaseAddress;               
                oMemory.ReadProcess = anProcess[0];
                oMemory.Open();

                byte[] buffer = new byte[16];
                IntPtr ByteRead;

                uint Offset_1 = 0x2E6224;
                uint Offset_Nick = (uint)Base + Offset_1;
                uint size_nick = 24;
                uint size = 4;
               
                MemoryAPI.ReadProcessMemory(readHandle, (IntPtr)Offset_Nick, buffer, size_nick, out ByteRead);
                uint baseContent_1 = BitConverter.ToUInt32(buffer, 0);
                uint baseAddress_1 = baseContent_1 += 0x1E0; //0x1E0 Offset 1               
                MemoryAPI.ReadProcessMemory(readHandle, (IntPtr)baseAddress_1, buffer, size_nick, out ByteRead);
                uint baseContent_2 = BitConverter.ToUInt32(buffer, 0);
                uint baseAddress_2 = baseContent_2 += 0x61C; //0x61C Offset 2 
                MemoryAPI.ReadProcessMemory(readHandle, (IntPtr)baseAddress_2, buffer, size_nick, out ByteRead);
                string charName = Encoding.UTF8.GetString(buffer);//Final
               
                lNick.Text = charName;
               

                oMemory.CloseHandle();
            }

Back to top
View user's profile Send private message Yahoo Messenger
Ryuuzaki_L
How do I cheat?
Reputation: 0

Joined: 25 Oct 2012
Posts: 3
PostPosted: Fri Oct 26, 2012 3:41 pm    Post subject: Reply with quote
Hello,

Thank you for the awesome tutorial. It has helped me make a trainer for FTL. However, I have one question.

I got this to work with Scrap and Fuel as they had static addresses. However, when I found the static pointer for fuel it is something like:

"FTLGame.exe"+002E79B8 with offsets of 138, 8c, 0, 1d4

Now I was wondering, what do I do with the "FTLGame.exe" part to make it work with the code?
Back to top
View user's profile Send private message
KryziK
Expert Cheater
Reputation: 3

Joined: 16 Aug 2009
Posts: 199
PostPosted: Fri Oct 26, 2012 4:22 pm    Post subject: Reply with quote
Ryuuzaki_L wrote:
Hello,

Thank you for the awesome tutorial. It has helped me make a trainer for FTL. However, I have one question.

I got this to work with Scrap and Fuel as they had static addresses. However, when I found the static pointer for fuel it is something like:

"FTLGame.exe"+002E79B8 with offsets of 138, 8c, 0, 1d4

Now I was wondering, what do I do with the "FTLGame.exe" part to make it work with the code?


Assuming you have a Process object open to FTLGame.exe, you would just do Process.MainModule.BaseAddress.ToInt32() to calculate the equivalent address of "FTLGame.exe".
Back to top
View user's profile Send private message
Ryuuzaki_L
How do I cheat?
Reputation: 0

Joined: 25 Oct 2012
Posts: 3
PostPosted: Fri Oct 26, 2012 4:36 pm    Post subject: Reply with quote
KryziK wrote:
Ryuuzaki_L wrote:
Hello,

Thank you for the awesome tutorial. It has helped me make a trainer for FTL. However, I have one question.

I got this to work with Scrap and Fuel as they had static addresses. However, when I found the static pointer for fuel it is something like:

"FTLGame.exe"+002E79B8 with offsets of 138, 8c, 0, 1d4

Now I was wondering, what do I do with the "FTLGame.exe" part to make it work with the code?


Assuming you have a Process object open to FTLGame.exe, you would just do Process.MainModule.BaseAddress.ToInt32() to calculate the equivalent address of "FTLGame.exe".


Thank you, I was reading something about that.

I have
Code:

            myProcess = Process.GetProcessesByName("FTLGame");
            if (myProcess.Length != 0)
            {
                isGameAvailable = true;
                label1.Text = "Status: Found FTL";

                hProcModuleBA = myProcess[0].MainModule.BaseAddress;   
            }


hProcModuleBA is an IntPtr of course, and it holds the value of 4194304 in debugging.

Bear in mind with me, I am fairly new to all this myself so forgive my stupid questions. What would I do from here?

I have a base address of 4194304 and the + 002E79B8.

Also, I noticed I have an 8c in the offsets, what would I do with that?

Thank you for taking the time to help me out. I greatly appreciate it. I am learning a great deal. It's nice to see actual use for the programs I write =)

edit: Forgot to mention I was probably using a different memory API. I'll try re-writing with yours real quick. xD.
Although, if you could still answer my questions that would be awesome =).Always looking to learn more.
Back to top
View user's profile Send private message
hitmetwice
Advanced Cheater
Reputation: 0

Joined: 20 Nov 2012
Posts: 63
PostPosted: Sat Mar 23, 2013 7:57 pm    Post subject: Reply with quote
@Kryzik I'm working with your code for a day now and although I just started with C# 3 days ago, it's helping me a lot Wink . I mean, I have no idea how efficient, elegant or portable your code is, but I love working with it. Smile
I upgraded it a little. Sothat I can use your code like that:
Code:

if (CanOpenProcessMemory(string processName))
{
    MemoryWrite(int address, new int[] { offsets }, int value);
    MemoryWrite(int address, new int[] { offsets }, int value);
    ...
    ...
    CloseProcessMemory();
}

I was easily able to do that because you commented your example so well. Google helped me to get familiar with the C# syntax. Smile

The problem is, that I'm not able to do the same thing with memory read. This is because I dont understand how it works. How can I make my program automatically calculate the legth of the bytes etc?
Also I would really love to skype with someone who knows something about that. Smile
Should I post my code here?

Last edited by hitmetwice on Sun Mar 24, 2013 5:13 am; edited 1 time in total
Back to top
View user's profile Send private message
KryziK
Expert Cheater
Reputation: 3

Joined: 16 Aug 2009
Posts: 199
PostPosted: Sat Mar 23, 2013 10:17 pm    Post subject: Reply with quote
Please post your code so we can see what you are asking. What do you mean read doesn't work?
Back to top
View user's profile Send private message
hitmetwice
Advanced Cheater
Reputation: 0

Joined: 20 Nov 2012
Posts: 63
PostPosted: Sun Mar 24, 2013 5:33 am    Post subject: Reply with quote
My problem is, that I'm not able to set up a simple read function.

Here is my code Smile
Code:

       private void hButton_Click_1(object sender, EventArgs e)
        {
            if (CanOpenProcessMemory("Tutorial-i386"))
            {
                MemoryWrite(00690320, new int[] { 0x464 }, 1000);
                MemoryWrite(02B5821C, new int[] { 0xC4, 6F }, 1234);
                //I want to read addresses with a function like that:
                //MessageBox.Show(ToString(MemoryRead(00690320, new int[] { 0x464 })));
                //
                CloseProcessMemory();
            }
            else
            {
                MessageBox.Show("Unable to open the process memory of 'Tutorial-i386'!");
            }
        }

        #region Open/Close Memory
        public bool CanOpenProcessMemory(string processName)
        {
            Process[] aProcesses = Process.GetProcessesByName(processName);
            if (aProcesses.Length != 0)
            {
                oMemory.ReadProcess = aProcesses[0];
                oMemory.Open();
                return true;
            }
            else
            {
                return false;
            }
        }

        public void CloseProcessMemory()
        {
            oMemory.CloseHandle();
        }
        #endregion
        #region MemoryWrite
        public void MemoryWrite(int address, int[] offsets, int value)
        {
            int converted_address = Addr.ToDec(address.ToString());
            int bytesWritten;
            byte[] converted_value = BitConverter.GetBytes(value);
            string sWritten_Address = oMemory.PointerWrite((IntPtr)converted_address, converted_value, offsets, out bytesWritten);
            if (bytesWritten == converted_value.Length)
                MessageBox.Show("Wrote " + value.ToString() + " to " + sWritten_Address + "!");
            else
                MessageBox.Show("There was an error writing " + value.ToString() + " to " + sWritten_Address + ".");
        }
        #endregion


This is all I can offer for the MemoryRead function:
Code:

        #region MemoryRead
        public void MemoryRead(int address, int[] offsets)
        {
            //I need something that calculates the length of the bytes for me automatically
            //and I guess I have to convert the address or something?
            PointerRead(address, ????, offsets, out int bytesRead);
            return bytesRead
        }
        #endregion

It is of course not working, but I hope it will make it easier to understand my problem.
I'm also wondering if it is neccessary to add a parameter "type" to the functions. Like float, double, 4bytes, Text?
Back to top
View user's profile Send private message
KryziK
Expert Cheater
Reputation: 3

Joined: 16 Aug 2009
Posts: 199
PostPosted: Sun Mar 24, 2013 12:21 pm    Post subject: Reply with quote
I provide the code to read from memory in the first post. Check the parameters and what it returns. You might have to cast the return value to something you want (like an integer).

Edit: Also, feel free to check out another bit of code that I wrote:
http://forum.cheatengine.org/viewtopic.php?p=5447297#5447297

The code there is much better than this code, even if it does contain a few errors. You might find it a lot more useful!
Back to top
View user's profile Send private message
hitmetwice
Advanced Cheater
Reputation: 0

Joined: 20 Nov 2012
Posts: 63
PostPosted: Sun Mar 24, 2013 4:17 pm    Post subject: Reply with quote
you are sooo awesome! Thank you so much Very Happy
Back to top
View user's profile Send private message
jackdaniels42
Cheater
Reputation: 0

Joined: 15 Jan 2013
Posts: 26
PostPosted: Mon May 27, 2013 11:21 pm    Post subject: hi Reply with quote
hi,can you tell me how can i find the weapondamage in the game ??
Back to top
View user's profile Send private message
Splamy
How do I cheat?
Reputation: 0

Joined: 30 Jul 2013
Posts: 1
PostPosted: Tue Jul 30, 2013 5:26 am    Post subject: Reply with quote
I know this Topic is pretty old, but I've seen a mistake an I'd like to correct it:
in the public static string Make(byte[] buffer) function you have to change the
if (Convert.ToInt16(buffer[i]) < 10)
to
if (Convert.ToInt16(buffer[i]) <= 0xF)
because in hex for example the number 15(0xF) is only 1 digit long
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Cheat Engine Forum Index -> Cheat Engine Tutorials All times are GMT - 6 Hours
Goto page Previous  1, 2, 3  Next
Page 2 of 3

 
Jump to:  
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


Powered by phpBB © 2001, 2005 phpBB Group

CE Wiki   IRC (#CEF)   Twitter
Third party websites