was wondering if it was possible to write/read from a programs memory inside of your visual basic 2008 application. I've done tons of research and "googled" everythingt to be able to read/write values of a running process from with my application.I did read somewhere that you can only read/write up to 4bytes in vb.net, That would be just perfect
View 6 Replies
I know this is doable in C++, but I have no idea if it would be doable in VB.NET/C#. This is the C++
DWORD ModuleHandle = ( DWORD ) GetModuleHandle("Module1.dll");
int AddressToEdit = ModuleHandle + 0x12345;
BYTE Buffer[1] = {0x00};
WriteProcessMemory(GetCurrentProcess(), (void*)(DWORD)(AddressToEdit ),&Buffer,1,0);
Is it possible to edit the memory of a Processes' module?
I've been researching all over Google for how to Read/Write Floats, Doubles, Longs and String to memory. I believe I have the reading Longs, and Floats working properly. I'll post my Module (which contains all my Read/Writting).[code]
View 2 RepliesIs there a easer way of coding in stead of wrighting long long paragraphs like this in one line [code]All of this is on one line and i got lots of info to put down.."The game will begin on your 16th birthday with your mother waking you up. Today you are to go to the castle for the first time. Leave your bed and open your dresser for a Strength Seed. "
View 2 RepliesI cannot use Visual Basic 2008 at all. When I go to "new project" and choose "Windows Form Application" I get this error.I have tried multiple uninstall/reinstall with no result.A microsoft reply to this suggested that I needed: " .NET Framework 2.0 Service Pack 1 " I checked, and I did not have the .netframework 2.0 service Pack 1.
When I tried to download and install the above from Microsoft.com, the istaller said that "it was not allowsed" and I was not able to install the service pack 1.
I tried Uninstalling net framework 3.5, 3.0, 2.0 and then reinstalling .netframework 2.0 sevice pack 1; then reinstalling Visual basic 2008 express edition. At the reinstall of Visual basic 2008, .netframework 2.0 sevice pack 1 is unistalled by .net framework service pack 2.When I check the foruims for simiar problems, the formus are mostly for Visual basic 5.0, or other programs that I do not have.
Here is the programs I have installed:
Operating system: Windows XP
Microsoft .net framework 1.1
Microsoft .NET framwork 1.1 Hotfix(KB928366)
Microsoft .Net Framework 2.0 Service Pack 2
[code]....
All the security updates and hotfixes for Widows XP.
I was just playing around with trying to set up a datacontract that returned a class that had a property that took/returned an enum value. I could set the class up so that it worked great, but the service contract seen by the client had the enum turned into a string, of all things. Had it been turned into an Integer, that would have been useable, but not a string
View 1 RepliesWe have a middle tier application which transfers data from one application to other.I need to write few values to a CSV file but every time the code runs it overwrites the prevoius line.How do I start with a new line every time
TextWriter tw =
new
StreamWriter("D:\parsII\Build\CCSDataProp\bin\server\smaple.csv");
[code]....
What I am trying to do is save a value (from a textbox) to the registry, and later retrieve the same:This is the code (not working) that I have at the moment:My.Computer.Registry.SetValue(My.Application.Info.Title, (TextBox1.Text), "MyFCA")
View 17 Repliesi have a vb project im getting a bit of trouble with.this is how it should work user input text in the textbox. the input text will be count as single character each one by one after been checked they will be writen to a text file but all in caps if use input symbols, there is a look up table to turn that symbol in charater and then write it to the text file. after all that are writen to the text file another part of the program will copy the text file to another location and delete the original one. so here is my problem because the text file will be deleted i need a code that will create a text file each time the programme runs.
[Code]...
how to pause a new processes, like gateway, but in real time.i want to make like process gateway [URL]tx before..
View 2 RepliesI need help writting a Trivia Game for a school project. The teacher wanted us to get used to looking to forums and google for help so he refuses to help us for this particular summative.
What I want to know is.. how to use a streamreader to read questions randomly from a text document located in the debug folder (I have 10 questions all in 1 text file in the debug folder, and the same for all of my answers) how to use a streamreader and split function to read answers from a text document located in the debug folder to a combobox.
[Code]...
I have a text file containing the data in following format
12345 Abdt3 hy45d et45a 76huj agsj7
Now I want to replace hy45d with another sting that is created on run time. But I am not finding any way to do it. It keep replacing the firt item or append it in next line.Code that I am using is
Public Sub SaveToTextFile(ByVal PNR As String, ByVal CaseCount As Integer, ByVal Type As String)
'- Location of the Text files
Dim targetFile As String = "C:TestReportTextFilesPNR.txt"[code].....
Wanting to do something like this:
VB.NET
Private Sub MaximizeCare()
For Each p As Process In Process.GetProcessesByName("clinical_carestation")
ShowWindow(p.MainWindowHandle, SHOW_WINDOW.SW_MAXIMIZE)
[code]....
But the trouble is that if multiple users are using the same terminal I cannot narrow down the process list to just the current user. So if two users run the same application simultaniously only the first user can open the application on the same terminal.
I'm extracting icons from running processes and then adding them to a ListView. Some processes don't have icons or I can't get access to them, so the icons are sometimes all mixed up. The following is how I'm extracting the icons:
[Code]...
When I close my program, it stays in Processes? Is there any way I can make sure it does not?
View 12 RepliesIm wondering if there is some way of monitoring individual processes (read: not mine) cpu usage and ending (asking politely then killing it off) the offending process. I dont know about you, but i've been in multiple instances where i've been unable to get to taskmanager to "choose" process to be killed. For multiple reasons (Either taskmanager has been visible, but a game window is still showing (alt+tab not working), leading to a guess game of clicking processes or cpu usage has been so high that one mouseclick takes 30 sec.)
[Code]...
For some time I've been trying to devise a system that would allow me to keep a large quantity of data stored in memory, which is to be accessed by a main process that I must start and stop a lot. I've tried using a virtual/RAM drive on which to store the data files to speed up data loading when starting the process, and also tried keeping the data in a windows service and using WCF for IPC between the main process and the service to access the data. Both those approaches were WAY too slow.Currently the main process stores the data in tables, and that serves my purposes well once the data is loaded. One thing that I'm wondering is if maybe it would be possible to "orphan" the DT objects by the main process and "adopt" them by the service when the main process is shut down, and do the opposite when the main process is restarted. That would obviously be pretty efficient.Is there any way of doing this in VB.Net without any non-managed code help?
View 4 RepliesI have populated a ListView with currently running processes and with the help of JMC, been able to highlight specific rows based on memory consumption. However, I've decided to change it up a little bit and change the color of rows based on whether the process is owned by the User, if it's a System process, or if is a Service. I've already been able to determine if the process is a User process by utilizing the OpenProcessToken.
[Code]...
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
View 10 RepliesIm getting a problem with one of my programs I have made in visual basic.NET where it gives me a memory error when i debug the program in the IDE. the exact error is this: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". My program basically has a few forms with text fields on that get their text values from an access database on the same hard drive. Im wondering if im doing something wrong because my program just seems to eat up memory whenever it does anything. For example I have one form that has a combobox on it and when you change the drop down list selection it retreives a few strings from the database and puts them into the relevant text boxes, if you keep changing the selection then the memory usage (in task manager) just keeps going up and up. occasionally I get the error mentioned above when debugging but in my built version of the program it throws an exception everytime the memory usage gets past 49K.
Also I noticed when debugging in the "immediate window" frame I get the following message often:A first chance exception of type 'System. Invalid OperationException' occurred in System.Data.dll...Do I need to somehow be "releasing" the memory that is used to gather data once it becomes redundant?
I am using the following code
This error occurs :
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Public Class FormRegEnumValue
[CODE]......................
QuoteSystem.AccessViolationException was unhandled Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Source="System.Windows.Forms"
Im designing a web browser and i continue to receive this error after going to about 3 websites it crashes with that error.
I have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted. I can tell that the BackgroundWorker is disposing of itself because I added a message box into the Disposed event handler.Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?
View 1 RepliesI've noticed that every time I start a new thread in my program, the memory usage jumps about 1000k and it never goes back down. I have ensured that the thread is no longer running, and only one instance of my worker thread is ever running at a time. I am using ThreadPool.QueueUserWorkItem and ASyncOperation to get stuff done. The program starts using a Sub Main in a module that uses STAThread; I read that using STAThread instead of MTAThread makes it impossible for the Garbage Collector to get in and consider objects for garbage collection. However, when I change the STAThread to an MTAThread, the WebBrowser control in my frmMain cannot be instantiated.
I get this exception:
Code: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll
Additional information: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment. I do threading with the WebBrowser control, so will using MTAThread fix my problem? If so, how should I partition my code so that the WebBrowser control won't be affected by the above exception? I call the thread repeatedly with a timer (although only one instance ever runs at a time), and my program's memory usage starts at about 5000k and can jump to 300,000k+ depending on many times the thread needs to be called.
The follow code can be called about 6K times on the server it is run on then gets a out of memory error in the last catch statement. I don't see what is wrong with the code, it works well up until the out of memory..
Public Function AddUserToGroup(ByVal sSamAccountName As String, ByVal sGroupName As String) As Boolean
Try
Dim returnStatus As Boolean = True[code]......
I have two forms, Form1 and Form2. Form2 has a button to show OpenFileDialog. I call Form2 from Form1 by a button. My startUp Form is Form1. When i start debugging, i press my Form1's button to show my Form2, it shows, but when i click On Form2's Button to show OpenFileDialog it is giving me exception that
"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
When i set my startup Form to Form2 and click Form2's Button to show OpenFileDialog then it shows!
When I importing multiple files from open files dialog ..sometime in random cycle jumping exception out of memory.Take look in the code..and say why this exception exist ?
[Code]...
I found this code and wanted to know when, where and why I would use it?
vb Declare Function SetProcessWorkingSetSize Lib "kernel32.dll" (ByVal process As IntPtr, ByVal minimumWorkingSetSize As Integer, ByVal maximumWorkingSetSize As Integer) As Integer
Public Sub FlushMemory()
Try
[CODE]........................
I have a Flash Calculator made for specific calculations. I can't extract values automatically, because it doesn't allow copy and paste. However, I know handler and address for those values, how can I get them in to my program?
View 18 Replieshow to read memory with VB. I want to start with Basic Mind Sweeper game. In mind sweeper if you set default greed/field (9 by 9) you can find all mines location of in memory from Address 01005360 to 01005468. Hex dumb 8F represents a mine. write a program in VB.Net 2008 that will display Hex Dumb of address 01005360 and 01005368 for mind Sweepers . So Basicly I need put all hex dumbs in string from hex dumb "10" in adress 01005360 to the next hex dumb "10"
View 5 Replies
