C# how to know if the PID of the browser is 32bit or 64bit?

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C#

<pre>public void comboBox1_TextChanged(object sender, EventArgs e)
        {
            if (this.comboBox1.Text == "Chrome")
            {
                int pid = browser.Chrome();
                if (pid > 0)
                {
                    Aobscan.OpenProcessid(pid);
                    label1.Text = "Attached To Chrome Pid :" + pid;
                }
                else
                {
                    label1.Text = "Failed To Attached";
                    Aobscan.processhandle = IntPtr.Zero;
                }
            }

What I have tried:

Hello guys. I would like to be able to have it appear on a label if the browser that found the PID is a 32bit chrome or a 64bit chrome. How can I do this?
Something like

If PID browser is 64bits label1.text = ("chrome 64bits")
Else label1.text = ("chrome 32bits")Thank you very much for the help

Posted 30-May-17 15:44pm

HemersonKl

Updated 30-May-17 16:40pm

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Suvendu Shekhar Giri 30-May-17 22:25pm

Check following-
Is64BitOperatingSystem and Is64BitProcess in .NET 4.0[^]

Dave Kreskowiak 30-May-17 22:42pm

That's not what the OP is looking for. Your code is asking if the current O/S is 64-bit or not and if the process this code is in is running as 64-bit or not. It does nothing to determine if an external Chrome process is 64-bit.

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Dave Kreskowiak · Accepted Answer · 2017-05-30T16:40:00

Solution 1

The PID is a Process ID. It's just a number and doesn't tell you anything at all about the process.

You have to get a Process object using Process.GetProcessById Method (Int32) (System.Diagnostics)[^]. When you've got the Process object you call the below code to determine if it's 64-bit or not.

You'll need a bit of code to make the call to Windows...

C#

internal static class NativeMethods
{
    // see https://msdn.microsoft.com/en-us/library/windows/desktop/ms684139%28v=vs.85%29.aspx
    public static bool Is64Bit(Process process)
    {
        if (Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE") == "x86")
            return false;

        bool isWow64;
        if (!IsWow64Process(process.Handle, out isWow64))
            throw new Win32Exception();
        return !isWow64;
    }

    [DllImport("kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.Winapi)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool IsWow64Process([In] IntPtr process, [Out] out bool wow64Process);
}

And you call it like this:

C#

int pid = browser.Chrome();
Process process = Process.GetProcessById(pid);
bool is64Bit = NativeMethods.Is64Bit(process);

Posted 30-May-17 16:40pm

Dave Kreskowiak

Comments

HemersonKl 31-May-17 7:18am

Hi Dave. I have this function in Aobscaner.cs How do I call it in form1.cs? So that when finding the browser it shows in a label that the browser is 32x or 64x. Sorry for ignorance I'm an apprentice.

<pre>[DllImport("kernel32.dll")]
        static extern int VirtualQueryEx(IntPtr hProcess, IntPtr lpAddress, out MEMORY_BASIC_INFORMATION lpBuffer, uint dwLength);

        private static IntPtr OpenProcess(Process proc, ProcessAccessFlags flags)
        {
            return OpenProcess(ProcessAccessFlags.All, false, proc.Id);
        }

        public static bool Is64Bit(Process process)
        {
            if (Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE") == "x86")
                return false;

            bool isWow64;
            if (!IsWow64Process(process.Handle, out isWow64))
                throw new System.ComponentModel.Win32Exception();
            return !isWow64;
        }

        [DllImport("kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.Winapi)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool IsWow64Process([In] IntPtr process, [Out] out bool wow64Process);

        public void ReadAOB(string Scancode)
        {
            if ((int)processhandle > 0)
            {
                IntPtr bytesRead = IntPtr.Zero;
                long MaxAddress = 0;
                if(isbit64)
                     MaxAddress = 0x7fffffffffffffff;
                else
                    MaxAddress = 0x7fffffff;
                long address = 0;
                addresses.Clear();
                do
                {
                    MEMORY_BASIC_INFORMATION m;
                    int result = VirtualQueryEx(processhandle, (IntPtr)address, out m, (uint)Marshal.SizeOf(typeof(MEMORY_BASIC_INFORMATION)));

                    if (m.Protect == AllocationProtectEnum.PAGE_READWRITE)
                    {
                        byte[] buffer = new byte[(int)m.RegionSize];
                        // IntPtr buffer = IntPtr.Zero;
                        ReadProcessMemory(processhandle, m.BaseAddress, buffer, (int)m.RegionSize, out bytesRead);
                        BoyerAlgo(m.BaseAddress, buffer, Scancode, ref addresses);
                    }
                    if (address == (long)m.BaseAddress + (long)m.RegionSize)
                        break;
                    address = (long)m.BaseAddress + (long)m.RegionSize;
                } while (address <= MaxAddress);
            }
        }

Dave Kreskowiak 31-May-17 10:05am

Not enough information to tell, but I already gave you an example of how to do something very similar.

This is why you shouldn't be copying and pasting code from the internet. You don't have the knowledge to understand what the code does, how it does it, how to integrate it into your own code and use it, and most importantly, how to debug it.

HemersonKl 31-May-17 10:21am

Hello. I have the source running right. With classes and everything. I just need this to be complete. Make appear if the browser is 32x or 64x.

Dave Kreskowiak 31-May-17 10:28am

And I already told you how to call the methods in that code. I don't know if this code sits in another project in your solution, what class it's in, ..., nothing.

I don't care how many times you repeat "I need make appear if the browser is 32x or 64x". It will never change my answer. You're not providing enough information to answer the question of "how to call it".

Like I said, I already gave you an example on how to call static methods in a class. You're just choosing to ignore it.

Oh, and it's "x86" or "x64", not "32x" or "64x".

HemersonKl 31-May-17 10:31am

I understand. I do not know how to explain myself better. Is that the example you gave already has it in the source of my program, just do not know how to use it for what I want. = /

Dave Kreskowiak 31-May-17 10:39am

I already told you, under "And you call it like this:".

Like said, you don't have the knowledge to use code copied off the web. This is basic level stuff you don't understand. I would suggest picking up a beginners book on C# and going through that first.

Dave Kreskowiak 31-May-17 10:28am

Do you really think anyone is going to download unknown code from an untrusted source and "fix it" for you? Not going to happen...

HemersonKl 31-May-17 14:59pm

if i make a Console.WriteLine(isbit64); in this line In the console it appears true or false when it is x86 or 64x browser. I want this true or false to appear in a textbox. Only I can not. = /

public void OpenProcessid(int Pid)
{
isbit64 = Is64Bit(Process.GetProcessById(Pid));
processhandle = OpenProcess(Process.GetProcessById(Pid), ProcessAccessFlags.All);
Console.WriteLine(isbit64);
}

Dave Kreskowiak 31-May-17 15:40pm

You can't assign a value to the Text property of a TextBox?

Considering a Windows Forms app doesn't have a Console to write to, I'm not surprised you can't get that value into a TextBox.

HemersonKl 31-May-17 15:47pm

I do not know why I can not call a textbox in the form for this. Of the error. I think I'll try to use the

using System;
using System.Text;
using System.IO;
using System.Windows.Forms;

namespace ConsoleRedirection
{
public class TextBoxStreamWriter : TextWriter
{
TextBox _output = null;

public TextBoxStreamWriter(TextBox output)
{
_output = output;
}

public override void Write(char value)
{
base.Write(value);
_output.AppendText(value.ToString());

}

public override Encoding Encoding
{
get { return System.Text.Encoding.UTF8; }
}
}
}
But this is also a class. Can I do the functions of this class directly in my form.cs? Without having to use this class file? Sorry I know I understand almost nothing. = / But since there is no simpler way.

Dave Kreskowiak 31-May-17 16:20pm

You don't need that class at all or its code.

You just need something like TextBoxName.Text = "whatever";.

HemersonKl 31-May-17 16:31pm

Error 1 The name 'TextBox1' does not exist in the current context
I can not do this because the code is in a class.cs

Dave Kreskowiak 31-May-17 18:00pm

You should not be touching any UI controls from your non-Form classes.

HemersonKl 31-May-17 18:18pm

OK. Thanks for the explanations. I got what I wanted by using a class that displays the consolewriteLine to textbox.text content. Probably not the best or the simplest, but it worked. So if the browser is 32bits it shows False in the textbox and hence I do it =) I know I must have complicated something that can be a lot simpler. But it was the way I found it. I thank you. If there is another simpler way I thank you too.

private void BIT64_TextChanged(object sender, EventArgs e)
{
if (BIT64.Text == "True")
{

BIT64.Text = "64Bits";
}

if (BIT64.Text == "False")
{

BIT64.Text = "32Bits";
}

Dave Kreskowiak 31-May-17 21:04pm

Wow. That's bad.

HemersonKl 31-May-17 21:07pm

Because?

Dave Kreskowiak 31-May-17 21:14pm

Why on earth would you set the text to "True" just to have the code change it to "64bit" in an event handler? Why not just set the text once in a more appropriate method:

    if (is64Bit == true)
    {
        BIT64.Text = "64bit";
    }
    else
    {
        BIT64.Text = "32bit";
    }

Done.

The way you're doing it you're setting the Text property twice and raising the TextChanged event twice.

HemersonKl 31-May-17 21:25pm

got it. Yes it is because the textbox.text would start with a text already something like "browser bit" But as I will not use it I will do as you showed. =)

HemersonKl 31-May-17 21:28pm

Ahhh I remembered. I can not use it like that. Because when it does not find any browser it can not be neither 32x nor 64 ^^ them textbox.text="";

Dave Kreskowiak 31-May-17 22:24pm

So? Add another if statement around the block I posted.