I have a problem Hi i readtext vb.net, but I can also use VB6 does not work any error in writetext stops but does not write ..
WriteText Code:
Public Sub WriteText(ByVal lngAddress As Integer, ByVal strText As String)
Dim hWnd As Object, processHandle As Object, processId As Integer
[code]....
I need to make a program for my school (I`m the principal), that reads the text in the memory address of the program and write it down in a txt. I couldn`t find a professional here in my city so, I already have the address numbers. For more information, I use VS 2008. I was trying to make one code to get the memory address, and after I succeed this, I'll make the correct program.
[Code]...
1. It only gets the first 4 bytes(is it?) of the memory address. I want it to get all of them.
2. I haven't discovered how to convert each byte(?) into a character. Is there a function for this?
3. When the program runs, after clicking ok on the MsgBox, it highlights the Next and debuggs:
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Im 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 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 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!
Not sure if there is a better way to do this but this isn't working. Just trying to run a batch command "query session" and put it into a text file using "> sessions.txt". When I run this command in a command prompt it works fine and spits the output to the text. I've tried just making the batch file in the same folder and executing that with Process.Start, still empty text file. Tried modifying the loop and no go also
Imports System.IO
Public Class Form1
Dim counter As Integer = 0
[Code]....
I am getting the following error: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". i am using interop service.
View 2 RepliesI have created an event DGVddlSubCategoryComboIndexChanged.as soon as the control come out of this event an error througn
Error:Attempted to read or write protected memory. This is often an indication that other memory is corrupted
Read/Write Process Memory?
View 6 Replieshow to write to memory some data and then read it back?
If i have 1GB free of memory i would like to write 100MB to memory some data and then read it back, i searched net for some documentations but cant find nothing, only writing to other process and some stupidities!
This is my 50th attempt to read the memory and probably my last attempt if I don't succeed now T_T I've been trying to write a class that reads from the memory, simply by creating wrappers around the Win32 APIs but I just can't get it to work.
This is how I currently am trying to read the memory from calc.exe:
Public Function ReadMemory(ByVal hProcess As IntPtr, ByVal lpBaseAddress As IntPtr, ByVal nSize As Integer, ByVal lpNumberOfBytesRead As Integer) As String
Dim tmpBuff As Single = 0
[Code]...
If you match two same colours or pictures, you get some points. There should be nine pairs of hidden pictures/colours but shows up when clicked but should not in the same order or line. There has to be a count down timer as well.
View 1 RepliesIs it possible to write the contents of a TextBox to memory so it is available in e.g. WORD or NOTEPAD and can be pasted using CTRL-V?
View 1 RepliesI have read the file into the memory.Now I need to copy this file into any folder that I have created.Can I use stream writer for doing that?
View 1 RepliesHave written a simple C++ DLL to provide info back to a calling VB.Net application in a structure passed over to the DLL from VB. On return the structure contains the data from the DLL but gives an error. Have tried changing the field types in C++ (I'm not strong at all in C++) but still getting error. Have provided the two sets of coding for the C++ Dll and the VB.Net program:
API_NKCdll.h file
namespace API
{[code].....
When this VB program is run the DLL crashes on the Interface_Link_ ConfigOperationTest(objInfo)
instruction with:- "Attempted to read or write protected memory. This is often an indication that other memory is corrupt"
the values in objInfo have been altered by the DLL correctly.
i have made application in vb.net which access the MFC Regular dll and it works fine if i run application from windows xp but when i run same dll from windows 7, it gives me above error.
View 3 RepliesI'm getting this error only on my laptop (so far) trying to get the local IP address. I've tried 3 different ways of getting the IP address and each one fails with the same error. This has never happened on my desktop machine but when I moved it to my laptop for additional testing I started getting the error and it further states "This is often an indication that other memory is corrupt". It does however retrieve the ip address but I'd like to get rid of the error. Here's my code and I might add that it never takes the catch ex path in my try-catch code it just stops on the error when running in the IDE.
[Code]...
i found out that the program wants to use a part of the memory that he may not use.In my case it only happens when i want to print something.In there i have a PrintPreviewDialog and add a PrintDocument.After that one is loaded it shows the document on the PrintPreviewDialog.Most errors that appear show drawing errors.So, how can i tell windows that the program may use the memory?
A friend of mine thought it was something like this:
[Security].Permissions.FileDialogPermission(Security.Permissions.SecurityAction.Demand) ]
Estoy trabajando con una dll para el proceso de cifrar archvios "CryptoVault" y cuan la app que la implementa se encontraba en produccion, en el proceso, de invocar la dll se obtuvo el siguinete mensaje de error:-2147467261 - Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
generando un bloqueo en la app El inconveniente es que no he podido replicar el problema en desarrollo y este caso solo se ha presentado una vez .Gracias de antemano por su colaboración.
I have a class as follows code, When a LotNum data changes, I want to save the WIPData to file immediately. The file will be load when application starting. Can I use share memory mapping to a file, after that I can access the share menory to read/write the file directly[code]....
View 2 RepliesHow can I write a signed byte (sbyte) to unmanaged memory using VB.NET? I can use Marshal.WriteByte() to write an unsigned byte, but there doesn't appear to be an overload for signed bytes.
View 1 RepliesI recently wrote a program that collects information from the network can displays it in a DGV for the user to see. I tested this on networks where I would end up with several thousand items brought back and all worked fine, very little memory increase and once the search had finished the memory usage went back to pretty much what it was before the search, so I assume I have no major memory leaks that I should be concerned about (I'm careful to always dispose of things and clear large variables where possible).
However, a new company has now started using my application and they have several hundred thousand items that my program will find. They reported that they leave the program running its search for a few hours and most of the time it crashes with an Out Of Memory exception. Now I did have my app do some caching of certain information to avoid querying the network more than was necessary so I thought well maybe this is what is causing it but I added an option to turn that off and they say it still happens. So the only thing I can see it being is simply the amount of data that the program is finding and having to store in memory.once my application has gathered information about the items it stores them in a List(Of MyItemClass) and then when the search is complete the items are added to the DGV. So I'm thinking maybe its just the size of this List(Of MyItemClass) that is simply getting too large. Bear in mind that each instance of MyItemClass in this List can have quite a lot of information in it as it has several properties that are List(Of String) that may contain a few thousand strings in some scenarios.How do you deal with such large amounts of data without running out of memory?I'm assuming the only option I have got is to 'page' some of the data to a temporary file on disk once I get over a certain number of items in the List(Of MyItemClass)?
I have the following code that connects to a server and expects data from it.Is it normal that working memory of my program increases every time I receive something from the server I connect to?The larger I make the network buffer, the more increase that is added to my working memory (in task manager)The data I receive is about 50 bytes. So I minimized that size of the buffer to 128.
View 1 RepliesI have several visual basic 2010 programs. One of the programs I have installed the program on four different windows 7 computers. I get the following error on one of the computers.Then another program I have installed it on 8 computers and I get the same error on 6 of the computers. Here is the error message I get:
2011-10-11 06:19:04 , Main, -2147467261, Attempted to read or write protected memory. This is often an indication that other memory is corrupt., at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
[code].....
I'm stuck at dll imports with the c++ dll. Here is the function in the c++ dll that I want to call from my VB.net code.
bool LoadNewTestPlan(const char* szPlanFileName=" ");
I've tried many ways in my VB.net but always getting the error : "Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
I have tried passing in byte(), Marshalling with LPStr, SafeArray and nothing works. Here is the example of my code code within the module
<DllImport("HPVKIfc.dll", EntryPoint:="?LoadNewTestPlan@HPVKIfc@@QAE_NPBD@Z", CharSet:=CharSet.Ansi)> _
Public Function LoadNewTestPlan(<MarshalAs(UnmanagedType.LPStr)> ByVal pln As String) As Boolean
End Function
If you match two same colours or pictures, you get some points. There should be nine pairs of hidden pictures/colours but shows up when clicked but should not in the same order or line. There has to be a count down timer as well.
View 3 RepliesI have a Windows application written in Visual Studio .NET 2008 in Visual Basic using the .NET Framework 2.0 A couple clients have been experiencing this very frustrating (but random) error "Attempted to read or write protected memory..." message. I've identified the code specifically when trying to create a new object from a VB6 DLL. [code] The new event of the VB6 object has no code. The error is very random, seems to work more than 99% of the time but every now and then throws an error. Same workstation and user can run the same code numerous times without any issues but eventually the exeption is thrown. I'm at a loss on this and it cannot be reproduced on demand.The VB6DLL is marked COMSelfReg in the MSI. The VB6DLL has not changed but the error seems to be new in the last few weeks. Reinstall the app and the VB6DLL does not resolve.
View 4 RepliesIve basically got 2 problems I need to solve.1) I am trying to determine if a certain process is running on the user's machine at the same time as my program.2) I am also then,if the process is running, trying to edit a specific memory addresses value. I have already found the memory addresses for the program, but how do I tell VB.Net to basically read the current value stored in that memory address, and then write a new value to that address
View 1 Replies