I've been looking into a way to obtain Parent Processes and then list them in a TreeView so I can list the child processes as child nodes However, it doesn't look like the framework has any built in methods. I thought I heard something about MS putting it in the .NET Framework 4.0. But, that's irrelevant at the moment.
Since there are no specific methods, is there still some way I can manually retrieve this info? Or would have have to use some unmanaged code? Maybe an API?
I have a procedure (parent process) that starts several processes (child processes). The child processes calculate several array variables. How can I pass those arrays to the parent process? At the moment, the child processes write the arrays to a streambuilder and the parent process reads the stream. Is there a better way to do it? Is it possible to have the child processes write to RAM memory and have the parent process read from there? It is like declaring a global variable in the parent process and give the child processes access to it.
I'm having a hard to figure out how to get the other process base on the parent process. I mean in task manager i have only one process name I'm gonna call it YeheyTask. But in application there are different application that under the YeheyTask how to get all the subprocesses of that parent process ?
I am working on a .NET console app which needs to clean up resources on exit. The problem I'm running into is that I don't get any notification if the cmd parent is closed via the console window [X], via Task Manager/Process Explorer or programmatically with WM_CLOSE. I can live with not being able to handle Kill Process from Task Mgr. or ProcExp. WM_CLOSE of the parent console is the most likely way that this application will be closed before it's finished processing.
Here are the events I've tried to register for so far: AppDomain.CurrentDomain.ProcessExit += CurrentDomainProcessExit; AppDomain.CurrentDomain.UnhandledException += CurrentDomainUnhandledException; Console.CancelKeyPress += ConsoleCancelKeyPress; Application.ApplicationExit += ApplicationApplicationExit; [Code] .....
These events fire properly when I send a CTRL+C from the console or the application finishes uninterrupted. But none of them fire when the parent app (cmd console) is closed. (The parent/grandparent processes aren't CLR so I'm not sure I would ever receive those Disposed/Exited events. Those are just shots in the dark.) I've looked at some pInvoke stuff but I would rather not go down that road if .NET is an option. Is there a way to detect and handle a shutdown in these situations? I am open to any .NET, pInvoke/Win32/C/C++ solution. (Basically any way it can be done on the Windows platform.). I'm still working with .NET 2.0 so I can't use anything introduced in .NET 3.0+
I haven't programmed in Visual Basic before. I downloaded the 2008 Visual Basic and I'm trying to write something that activates the frontmost window of the parent process. I realize that there's a few steps... find the parent process, get its first window (z-axis wise), then raise that window even though it currently isn't the active program.
I've found some example code on the net, but none of it compiles, even code I found at Microsoft. I'm guessing that it's all an older syntax that's no longer supported. [code]...
I have used the code convertor at developerfusion to convert the following two pieces of code (originaly from url...Can anyone tell me how to get the returned Latitude and Longitude values to display in my textboxes named tab5txtLatitude and tab5txtLongitude? [code]Conversion seems to have been done ok apart from the two lines (in red text) which appear to be missing from the converted function.
I have a problem where I am running a Console App to obtain some computer information on a pc. The pc has the following specs:
Windows XP Media Center Edition 2002 Service Pack 3 2 GB RAM .NET Framework 3.5
The script runs fine on my Vista Ultimate PC. However, my friend runs it on his pc and nothing is written to the file. The directory and the file are being created, but nothing is in the file. Is there something that I am missing about XP Media Center Edition?
Here is the code: Dim cFile As String = "C:System InformationsystemInfo.txt" Dim objWriter As New System.IO.StreamWriter(cFile, False) Try Dim mObjOS As ManagementObjectSearcher = New ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem") Dim mObjCS As ManagementObjectSearcher = New ManagementObjectSearcher("SELECT * FROM Win32_ComputerSystem") [Code] .....
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.
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
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).
This is a challenging one that got me stumped while I was coding today. Suppose I am running the Sub Test1() and Test2() and would like to print out the value of the Shadows method of the instance of the object I am passing in to TestCall() (see below - it is clearer) using the following restrictions:
Can't change the contents of Class A, B, and C Can't change Sub Test1() and Sub Test2() TestCall() can't have an if, select case etc. statement that tries to figure out the type
I have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform' frmsub = new subform
I would like to know if there is some simple code to release a child control from it's parent control, without having to name the parent control. In pseudocode, I'm looking for something like this:
What I am trying to do is have a button that will pop up a dialog to where you can select a directory. Then the path of the directory will be placed in a text field.Click Button > Dialog Pops Up > Select Directory > DirectoryField.Text will equal "C:Program FilesStuff"
How do you provide an image to the program, so the program finds that image on the screen and tells its coordinates. So if I was to provide an image of the start button, the program would tell the coordinates like (2,1000) or something similar.
sample_form.rtf (1.48MB). Number of downloads: 36. I have a working form to give specific choices to the user and retrieve the user's choice. (See code below and attached image in WordPad file.) I know I can use a global ("Public") variable to pass the text of the three choices from the calling form to the called form, but is there a way to pass these from one form to the other exclusively? Of course, my main objective is to have as little memory being used as possible. I would like to make the form in my example (frmDialogChoice) a generic form that can display any set of three choices.
code within calling form: Dim intSwitchToMake As Integer Dim insFrmDialogChoice As New frmDialogChoice insFrmDialogChoice.ShowDialog()
The following VB 2010 code runs, but returns only a black bitmap. I suspect the problem lies with the call to GetCurrentObject but I haven't been able to find good documentation on the arguments for it.[code]
What is the best way to go about retrieving data from a proprietary hardware device that interfaces via HID USB? The particular device I need the data from is a blood-pressure/heartbeat measurement & monitoring device.The hardware came with software that downloads the data from the device and places that data into a (passworded/encrypted) MS Access database that I cannot connect to using programmatic methods, at least not without having the (admin's) password. The software provided produces reports, but the formatting renders them virtually useless (well, completely useless) for the needs of our company.
The device manufacturer provides to it's customers no API or any other technical information for accessing the data produced by their product; so, this pretty much leaves me stuck trying to figure out how to obtain the data via custom application in order to reclaim the initial justification for the expense associated with the hardware, which by the way has already been purchased.I don't need code snippits specifically, though examples would be nice; what I really need is to know is how to best approach this project, from a general design and programming stand-point.
I want to be able to search the windows event log (security) on our 2008 DC to find out when a certain user logged in. Using the system.diagnostics.eventlog namespace I can search and view information based on the event Id(4624) but I cannot work out how to display the login name of the user.
I am developing a software that would scan the image in a picturebox and obtain the rgb values of each pixel in the image and convert each rgb values to HSL values. I am using vb 2008 express edition. I am still a student. I am just starting to learn vb 2008. All I have done is to obtain the image in a file and paste it in the picturebox. Below is my code. I dont really know how to start with the process of obtaining the rgb values of each pixel and converting them to HSL values and averaging the HSL value.
Code to obtain image: Option Strict Off Option Explicit Off Imports System.IO Public Class Form1 Inherits System.Windows.Forms.Form [Code] .....
I still do not know how to start with the process of obtaining the rgb value for each pixel.
I need to obtain the target of a shortcut (.lnk) file using Visual Basic 2008 or 2010 under Windows 7.For Windows XP and VB 2005 I used the Windows Script Host Object model and DLL, like this:
Imports WSH = IWshRuntimeLibrary . . . . . Dim MyShell As New WSH.WshShell
I am developing an application to be deployed on an XP Tablet edition PC. I am interested in monitoring information (e.g. Channel, AP MAC Address) about the Access Points that I am connecting to to location where in the facility a given Tablet PC is operating in.I have been unsuccessful in finding any code samples/snippets showing information on how to retrieve this sort of information.
Currently working with converting SQLException error messages into messages that are more useful for the end user. My largest issue has been finding the information I'm looking for.For instance, error code 8114 is
"Error converting data type [Type1] to [Type2]" And error code 8152 is "String or binary data would be truncated"
Using ADO.NET in VB.NET with SQLServer, is there a simple way to figure out which columns are affected by these errors?
From what I'm finding, there doesn't appear to be any particular function available to obtain the value from a particular field from a double clicked on row of a datagrid...
So if you wanted to double click on a particular result in a datagrid, then pass one or more of the values of that row, you couldn't?
I was thinking something like this, but of course that doesn't work, any ideas?
Private Sub InventoryDataGridView_CellContentDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles InventoryDataGridView.CellContentDoubleClick Dim invID As String = InventoryDataGridView.CurrentRow(???ParticularField???) End Sub
I'm trying to obtain name/value pair of enumeration typed into text box with LINQ. It's OK with name, but when LINQ reaches values, it throws error: "Conversion from string "Black" to type 'Integer' is not valid". I have read that if I want to obtain a value, then I gotta use conversion function.
Here's code (button's Click event):
Private Sub GetEnums(ByVal sender As Object, ByVal e As RoutedEventArgs) lstEnums.Items.Clear() Dim typeName = Type.GetType(txtEnum.Text) Dim enums = From en In typeName.GetEnumNames
Is it possible using Reflection or some other method to obtain a reference to a specific class instance from the name of that class instance? For example the framework for the applications I develop heavily uses public class instances such as: Public bMyreference as MyReference = new MyReference
Then throughout the application bMyReference is used by custom controls and code. One of the properties of the custom controls is the "FieldName" which references a Property in these class instances (bMyReference.MyField) as a string. What I would like to be able to do is analyze this string "bMyReference.MyField" and then refer back to the actual Instance/Property.
In VB6 I would use an EVAL or something simular to convert the string to an actual object but this obviously doesn't work in VB.net. What I'm picturing is something like this: Dim FieldName as String = MyControl.FieldName ' sets FielName to bMyReference.MyField Dim FieldObject() as String = FieldName.Split(".") ' Split into the Object / Property Dim myInstance as Object = ......... ' Obtain a reference to the Instance and set as myInstance Dim myProperty = myInstance.GetType().GetProperty(FieldObject(1))
