.Net ReadProcessMemory Windows 7 RC 64bit?
Sep 20, 2009
i wrote a programm that reads the memory of a program.it worked at xp and vista but not at windows 7 i builded it with microsoft visual basic 2008 express edition.the code looks like this:
Public Declare Function GetWindowThreadProcessId Lib "User32" (ByVal hwnd As Integer, ByRef lpdwProcessId As Integer) As Integer Public Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Integer, ByVal bInheritHandle As Integer, ByVal dwProcessId As Integer) As Integer Public Declare Function ReadProcessMemory Lib "kernel32" Alias "ReadProcessMemory" (ByVal hProcess As Integer, ByVal lpBaseAddress As Integer, ByRef lpBuffer As Integer, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer
[Code]...
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Dec 9, 2010
I'm getting a new laptop with pretty free hands as to what to get.Most I like come with Windows 7 64bit and I'm a bit cautious about that as I have Vista 64bit on a stationary at home. Not completely happy with that.
I have learned that the Jet database - that I use a lot - does not run on Vista 64bit, but how's the story with Windows 7 64bit. As I will be doing a lot of programming on the new laptop (and I need to get moving again soon - busy!!) I would like to know of potential problems up front.
I'm using Visual Studio 2008 programming VB.Net
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Nov 1, 2011
I have an old 32bit vb type app and we're running it on windows 7 64bit sp1. On one computer it works fine, on another it doesn't work right. Do you know how we could debug this and figure out what's causing it? Could a different CPU or bios/chip set have something to do with it?
This is the thing we're using specifically:[URL]...
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Feb 24, 2012
I'm having a massive problem trying to write a file into the c:windowssystem32 directory. The code works fine on 32 bit machines, however does not work on 64 bit machines. My user account is an administrator on the machine, and even right clicking and choosing to run the app as administrator does not solve the issue.
When writing the file, no exception is thrown, but the file is not written. I have read various posts regarding adding an app.manifest file containing the requestedExecutionLevel node to my solution, but as yet am unable to get this to work. I have a feeling this may be because I'm using vb.net rather than c#.net(also, this is not a malicious app I am writing, I'm working on a version control app for our team and need to be able to interface with IIS files held in c:windowssystem32inetsrvconfig).
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Jun 26, 2011
I am writing a vbs to create local port to connect to our printer server (i.e local port for \PrintServerPrintQueue1). I can create the local port succesfully through editing the registry HKLMSoftwareMicrosoftWindows NTCurrentVersionPorts and then restarting the spooler service in Windows 7 32bit. However, the same script cannot create the port in Windows 7 64bit. The registry was also changed but cannot create the local port after restarting spooler service. Does anyone know what difference between 32bit and 64bit Windows when creating the local port?
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Mar 9, 2012
After compiling the project it works fine on windows 7 32bit and 64 bit but will not work on server 2003 or xp clients have not checked vista yet, i have verified that .net 4 is installed and i can tell you that i do not get an error message when installing apart from the icon that i have given the project does not appear and is a blank icon on the desktop. When i try to run the program it will try to start i see the service in the task manager and after a while it will error out and crash. I can see the memory usage go from 20,000K to 70.000k.
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Feb 17, 2011
After starting debug te program hangup. Moost of te time if DataGridViewLijsten_RowHeaderMouseClick is called. Using pause butten the program is almoost in the random routine.
[Code]....
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Jan 23, 2012
Currently I am building a Canon EDSDK Application using VB.NET that access a Canon 500D camera. It's a DLSR system. I've read that the EDSDK is only working on 32 bit system, thus my application only capable of running on a 32 bit system.
But, I just installed DLSR pro [URL], it can access my camera, regardless of the operating system : 32bit/64bit.
How do they able to do it?
Is there a new EDSKD that can access camera in 64 bit OS? I am using a 2.6 EDSDK.
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Jan 25, 2009
Winsock for some reason does not work with Windows Vista 64Bit? Is there another way that is as simple as that? If so what and how?
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Jan 28, 2010
I have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
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Nov 4, 2010
I have a VB .net application which works fine on a 32 bit systems. We tried using it on a 64bit Windows 7 system but it failed. So I set up an environment in a VM (windows 7 64bit VS 2005 SP1 all updated) and started debugging there. The problem I come across is, I have a module (Public variables and function declarations from a driver provider FTDI). When a function from module is called the result is saved in a variable also from module. But the problem is the variable is not declared.
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Nov 18, 2009
This time i have to read a string from a textbox on an other window (not one form in my project).I've got the correct address to that string memory, i can always get the correct
handle and process of the window, but i don't know how to use themwith ReadProcessMemory
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Oct 4, 2009
I've been banging my head at a wall for like 4 hours now, googling and searching forums but I haven't found a solution yet. This is (a part) of the code: Public Declare Function OpenProcess Lib "Kernel32.dll" (ByVal dwDesiredAccess As Integer, ByVal bInheritHandle as Integer, ByVal dwProcId As Integer) As Integer
Public Declare Function ReadProcessMemory Lib "Kernel32.dll" (ByVal hProcess as IntPtr, ByVal lpBaseAddress As Integer, ByVal lpBuffer() As Byte, ByVal Size As Integer, ByRef BytesWritten As Integer) As String
[code].....
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Sep 7, 2009
I would like to know how you can get into a game using the ReadProcessMemory technique. Could someone help me by telling me what information I need to get into the game and the code required.
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Jun 24, 2009
This is again something work in VBA while VB2008 not working..I was about to use them to read lines from a listview of an external application...I define them as:
Private Declare Function WriteProcessMemory Lib "kernel32 " (ByVal hProcess As Int32, ByVal lpBaseAddress As Int32, ByRef lpBuffer As IntPtr, ByVal nSize As Int32, ByVal lpNumberOfBytesWritten As Int32) As Int32
Private Declare Function ReadProcessMemory Lib "kernel32 " (ByVal hProcess As Int32, ByVal lpBaseAddress As Int32, ByRef lpBuffer As IntPtr, ByVal nSize As Int32, ByVal lpNumberOfBytesWritten As Int32) As Int32
Originally, lpBuffer was defined as Any, while VB2008 not supporting it, so I make them IntPtr, then I got trouble when I use them..I declare a structure LV_ITEMA then dim myItem as new LV_ITEMA, so when I write:
WriteProcessMemory(pHandle, pMyItemMemory, myItem, Len(myItem), 0)
The program will give an error saying .. Error 1 Value of type 'WindowsApplication1.Module1.LV_ITEMA' cannot be converted to 'System.IntPtr'.
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Apr 12, 2009
let me show you my code first and then explain my problem.
[Code]...
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Dec 15, 2010
I've been using the readprocessmemory function to read some values from another program and it works just fine for small values. However when I'm trying to read something like 5000.123456789 or whatever it doesn't even display the 5000, it just displays something that seems kinda random. Now, I've had this problem before and it helped to just increase the iSize from 1 to 10, but now I can't increase it anymore for some reason. I tried to increase it to 100 but then I got a fatal error. Is there some way to get around this? I guess it could also be because I'm not trying to read an integer but a float, but there is no float in VB, so i tried double, but no go.
[Code]...
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Oct 19, 2010
I'm trying to get the Score of Pinball:
<DllImport("kernel32.dll", SetLastError:=True)> _
Public Function ReadProcessMemory( _
ByVal hProcess As IntPtr, _
ByVal lpBaseAddress As IntPtr, _
<Out()> ByVal lpBuffer() As Byte, _
ByVal dwSize As Integer, _
[Code]...
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Dec 6, 2008
I'm currently developing a little hobby project to display health information in a game on my G15 keyboard through VB.NET. When I use ReadProcessMemory via an API call, it keeps returning zero. The MSDN documentation referred me to use the Marshal.GetLastWin32Error() call to find out what is wrong and it returns 1400: INVALID WINDOW HANDLE.
I am now confused about whether the first argument of the function wants a window handle or a process id. Regardless, I have tried both with FindWindow and hardcoding the process id while the application is running (getting it from task manager). I have tried three different games, Urban Terror, Grand Theft Auto: SA and 3D pinball for windows, getting the memory addresses from an application called Cheat Engine; they all seem to fail. [Code]
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Aug 26, 2009
I'm having some problems implementing an algorithm to read a foreign process' memory. Here is the main code:
[Code]...
Although generally it seems to work correctly, the problem is that for some memory values ReadProcessMemory is returning false, and GetLastError is returning 299. From what I've googled, it seems to happen on vista because some params of OpenProcess were updated. Anyone knows what this is about? And what values should I try? Notice that as they changed, I wouldn't want to know if it's VM_READ or so, I want to know exactly what the values are.
[Code]...
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Jun 1, 2008
I have searched google with this error in relation to Process.MainModule.FileName however none link with the error message, "Only part of a ReadProcessMemory or WriteProcessMemory request was completed".There however was one thread on these forums suggest a 64 bit issue however that was soon excluded as it was reported also in a 32 bit enviroment. The marked answer to that thread suggested it is a security problem however I don't think anything has been changed in relation to that comapred to a 'clean' project.
"If it is a security problem, you may try to run your application under the debugger" Process.MainModule failure I am in-fact debugging this application through Visual Studio so I am not quite sure what to do next in the process of diagnosing this problem. I am debugging using 32 bit in a 64 bit enviroment because of DirectX compatability issues?
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Jan 18, 2010
I'm using the following code to iterate through and find windows containing specific strings in their title bars. I have two projects containing this identical information, yet for some reason - it works when targeted to x64, but FindWindowLike returns 0 always on x86. I need this to run in x86.I am developing this on Windows 7 x64, but it needs to run on my machine as well as XPx32. What I can't fathom is why it compiles/runs on x64 but not x32 (considering I'm targetting user*32*.dll)
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May 18, 2010
Can I use Long for array indexing? If no what could be done to manipulate large byte arrays (>32bit)?
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Nov 7, 2010
coming from VB6 I've been using the windows API for many years. Now I'd lke to do the same on .NetMy question is, what would happen if I build for 'AnyCPU' and the application calls Kernel32 while running on a 64bit machine ?
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Jan 7, 2011
I have an application that I built in VB.Net 2008 on Windows XP for Any CPU that I would like to run on Windows 7 64bit. Is this possible from Windows XP or do I need to compile and develope on Windows 7 64bit for it to work?
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Jan 23, 2010
VB.NET 2008 can make 64bit applications?
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Feb 6, 2010
There are a few threads on these forums about this question, but I need a definite answer.
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Aug 20, 2009
I am using Visual Basic 2008 Express Edition and I want to create a 64bit application, but don't know how.
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Oct 14, 2010
Depending on what component is handling the print for you, some of them are not 64 bit ready (i.e. 32 bit only). To use them you must compile your application as 32 bit only. It will then run on the WOW platform that Win7 supplies.
You change this option on the PropertiesCompile screen. Press Advanced Compile Options and review Target CPU:
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Oct 12, 2011
I've downloaded the 64bit debug symbols and told the IDE where they were located. But for some reason, VS won't build a 64bit debug EXE.
This is my first time doing 64bit so I never had to worry about it before. Is there something I need to do in the IDE that I don't know about? I went to Project Properties and set things to 64bit debug. But when I compile the program, it makes a 32bit program.
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