VS 2008 Terminating A Process Handle
Aug 24, 2009
I have a DLL that copies an Access database, opens it, reads it, and then closes it. The second time through it is unable to copy the Access DB because the EXE has an open handle to it. The EXE does not reference the Access DB at all, it just has the open handle because it calls my DLL. After I close the DB, I would like to terminate the EXE's handle to the Acess DB. BTS - I wrote the DLL and it is my Access DB. Another company wrote the EXE and I can not make any changes to it.
[Code]...
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Aug 24, 2009
I have a DLL that copies an Access database, opens it, reads it, and then closes it. The second time through it is unable to copy the Access DB because the EXE has an open handle to it. The EXE does not reference the Access DB at all, it just has the open handle because it calls my DLL. After I close the DB, I would like to terminate the EXE's handle to the Acess DB. BTS - I wrote the DLL and it is my Access DB. Another company wrote the EXE and I can not make any changes to it.
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Aug 15, 2011
working on a vb.net project I need to handle the explorer's copy process, take the file list, and put it in my application to complete the copy/move
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May 18, 2009
I am attempting to make a piece of software that monitors a 3rd party process for injected code. I successfully made a program that uses readprocessmemory from kernel32 to search for strings in a process. My problem is that the process I am attempting to monitor is running as system and provides an access denied message when I attempt to query any information about the process. Including process.handle and process.modules. Are there any ways I can get this process' handle?
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Jan 16, 2011
For an app. I'm making I need to find all the windows that belong to a process.
From all of this windows I want to have the handle and title.
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Jul 6, 2012
for example:
dim a as long
for i as integer = 1 to 10000000
[CODE]..........
It will hang when it run til half way.
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Jan 26, 2010
I have a program that if user presses a key(while the program isn't focused),it presses some keys(some kind of macro to aid gamers).The program works,but I cannot stop the background thread.I use "t.abort()" (t is the name of background thread) but it keeps working(even when I close all forms) and at TaskManager "keypresser.exe" is still there.[code]
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Jul 26, 2009
Currently, I have a RingBuffer which is run by a producer and a consumer thread.In looking for a method of terminating them orderly, I thought I'd use a flag to indicate when the producer had finished and then check that flag in my consumer along with the number of ring buffer slots that need to be written. If the producer has finished and the ring buffer has no slots that need to be written the consumer can terminate.However, if I artificially lengthen the time the producer takes by inserting a sleep, the consumer does not terminate. I believe this is a consequence of the semaphores being used.Here is the code I'm working with. Notice that the program will "hang" after all slots have been written. The producer terminates, but the consumer "hangs".[code]
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Oct 17, 2011
I have an internal process that requires data in a very specific format. Nothing I can do about that. So in my VB.NET program I am trying to output a number with a terminating decimal and nothing after it. I tried
swOut.WriteLine("{0,10:###0.}", var)
But the output is a whole number
886
913
941
[Code].....
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Dec 18, 2009
What is the proper way to terminate a Windows Form application while it is just executing in the MyApplication_Startup routine?I have an application that looks for a database file upon startup. If it does not find it I prompt the user and ask if they wish to locate the file or not. If they choose not to locate the file I want to just terminate the application. Currently i just execute the "End" statement, but that does not seem like the proper way to terminate a program.
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Nov 8, 2011
I have several programs written in VB2008 on a network shared drive. Multiple PC's which have access to this drive run the programs. The problem is when I want to upgrade the program or a file/picture with changes, either I cannot overwrite the .exe file because someone is running it, or for example, a background picture on an open form is loaded and then I cannot change the picture on the server. I thought of placing a timing loop in the programs to frequently check a file on the server, which when I need to make a change, I can fill with an appropriate trigger word (like "exit") that would have the program terminate and be unable to restart until I change the file to "OK", but this seems rather crude. I assume there's a better and more elegant method.
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Oct 7, 2011
I'm using agsXMPP in my .NET project (WinForms).I have the following Code block, this is executed whenever a message is received from any client.Now whenever a message is received, this block executes and the program terminates..Has this something to do with threads? (I've heard that agsXMPP encapsulates a thread on which it works)
Private Sub messageReceived(ByVal sender As Object, ByVal msg As protocol.client.Message)
Dim chatMessage() As String
Static Dim Hi_ed As Integer = 0[code].........
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May 7, 2011
I have a login form which I need to close without the entire application being terminated. I tried using Me.Close() , Me.Hide() as well. The login form is used as the main form as well.
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Sep 9, 2009
I want to terminate an application using the full file path via vb.net, yet I could not find it under Process. I was hoping for an easy Process.Stop(filepath), like with Process.Start,
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Apr 24, 2011
i want a code that if a process that i picked is no match in a process list that process that i picked will start
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May 27, 2010
Trying to create a button that when clicked will check to see if a certain process image is running and if that process is running give the process focus. If the process is not running then start the application.
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Aug 8, 2010
Whats happening is I run the code below and get the following error "The system cannot find the file specified". I've read that with UseShellExecute set to false that you can't use WorkingDirectory.
Dim Password As String = "password"
Dim SecureStringPassword As New System.Security.SecureString
For Each c As Char In Password
[Code].....
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Jun 4, 2009
I have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
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May 11, 2009
I have a section of code that will compile perfectly using VB Studio 2003, but it throws a InvalidCast Exception under VB 2005/2008. The code throws an Invalid Cast exception at KeyHandle = e(field.GetValue(KeyToMonitor) line below, and as far as I can tell it is because the variable Field is passing the string Microsoft.Win32.SafeHandles.SafeRegistryHandle rather than an integer. Is this because of safe keys in VB 2005 and 2008?
how to call the handle of the registry key opened in a way compatible with Safe Keys? I'm using the code to notify when a registry key is changed using RegNotifyChangeKeyValue.
Private Function WaitForChange() As Boolean
Dim notifyEvent As New Threading.AutoResetEvent(False)
Dim KeyHandle As IntPtr
[Code].....
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Jul 6, 2011
I have a program which uses TcpClient, the issue I'm having is how do I construct the packets when some of them come in seperate parts. For example, If I receive 5 packets, 2 of them are fine, but the other 3 have come in seperate parts when it's suppose to be a whole packet. How can I handle this?
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Feb 28, 2010
I don't know how much sense the title makes, but let me give you an example:If you've used Xfire, you may have run across links that allow you to modify things in the program such as your status.This is an example of a status changing link:xfire:status?text=I%20love%20Donkey%20Kong%20Jr.And your status will change to "I love Donkey Kong Jr.
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May 30, 2009
I'm using this code to get the StartMenu handle:
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal IpClassName As String, ByVal IpWindowName As String) As IntPtr
Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal
[Code]....
But it doesn't seem to work, I can get the taskbar handle but not the start menu handle
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Jun 9, 2011
I have a small program which loops records of one datatable against records of another datatable. I use a function that places two fields of the 2nd DataTable into an array. The problem I have is that if there is a NllValue in one of those fields I recieve an error message unable to cast Null to type Double.
[Code]...
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Feb 26, 2010
I have the following code to handle keypresses on the form:
Private Sub Form1_KeyDown(ByVal sender As Object, _
ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Debug.WriteLine(e.KeyCode)
[Code].....
The first time I press any of the arrow keys the code is not executed and a NumericUpDown(NUD) on the form gets the focus. The rest of the times the arrow keys are pressed everything is fine, until I click on a button. Then the problem repeats, focus NUD, then fine.
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Nov 22, 2009
i've created an array of checkboxes like this
CheckBoxesArray = New CheckBox() {CheckBox1, CheckBox2, CheckBox3, CheckBox4, CheckBox5, CheckBox6, CheckBox7, CheckBox8, CheckBox9, CheckBox10, CheckBox11, CheckBox12, CheckBox13, CheckBox14, CheckBox15, CheckBox16, CheckBox17, CheckBox18, CheckBox19,
[code]....
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Oct 1, 2010
what's the best way to handle the updates to the database.For example i have one datagridview that's binded to a datatable (with two fields, id auto incremented and a varchar). The user can do all the operations Insert, Update, Delete.If i insert one row (only the text) and call the update method to save the changes to the database, and after that remove the same row and call the update method the adapter will throw a exception because it didn't update the datatable with the value of the id. So the best way to do this is always calling the fill method after every update?
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Mar 28, 2011
How would I use FindWindow to get the handle to a textbox on my form?
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Mar 23, 2009
I wrote an application to handle a joystick with directinput. It works fine if it uses the handle of the main window but it doesnt happen the same if the handle is the one of the component that contains the joystick's operation.
I mean:
main form handle: 15
component handle (which is inside the window and the joystick needs the focus of this component to work): 25
It always work if the handle i initilizate the device is the main form (15).How can i use only the handle of the component?
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May 3, 2011
I have a table called ConcernedParty. It has an ID field, description and a TypeID which is a foreign key to the pk TypeID column of a table names ConcernedPartyType.Now i'm creating two classes. One for each table. In my ConcernedParty class I have and ID, Description property etc. how must I handle the TypeID in my ConcernedParty Class.
Do I declare it as:
Public Property TypeID as ConcernedPartyType
Or
Public Property TypeID as Integer
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Sep 17, 2009
Is it possible to send keys to a specific windows handle without having to bring that window to focus?Right now I have the following code almost doing the trick:
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SetForegroundWindow Lib "user32" Alias "SetForegroundWindow" (ByVal hwnd As Long) As Integer
Sub SendKeysToApplication(ByVal AppTitle As String, ByVal Keys As String)
[code]....
It will bring the windows calculator window to the top and set the value "1" on it.Is it possible to send the keystroke without poping the window?
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