I need a service to conect 2 host with videoconference into my application. I was thinking to open a web page into my application witch opens this service.
It is important that the service has a simple link and no autentication system.
I need to "call" directly from one use to another opening this web page.
Just 2 machines, videochating with one permanent link.
I have a piece of code:
[Code]...
Public Event Closing(sender As Object, e As System.EventArgs)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.
So I am having an issue where I want to call a variable without addressing it directly and I get an error for it:
Conversion from string "player1BuzzLock" to type 'Boolean' is not valid.
This is technically correct but why would it fail?
Dim player1BuzzLock As Boolean = False
Dim PlayerNum as Integer = 1
'...
Dim playerBuzzLock As Boolean = CType("player" & PlayerNum.ToString & "BuzzLock", Boolean)
I have a Util module in my VB.NET program that has project-wide methods such as logging and property parsing. The general practice where I work seems to be to call these methods directly without prefixing them with Util. When I was new to VB, it took me a while to figure out where these methods/functions were coming from. As I use my own Util methods now, I can't help thinking that it's a lot clearer and more understandable to add Util. before each method call (you know immediately that it's user-defined but not within the current class, and where to find it), and is hardly even longer. What's the general practice when calling procedures/functions of VB modules? Should we prefix them with the module name or not?
View 3 RepliesI have a MouseMove event handler
Private Sub Form1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseMove
how do i directly call it, even if the mouse was not moved?
I tried..
Form1_MouseMove(sender, e)
but it did not work...
I have a function where I am performing a lot number of database operations inside a Sub. The operation when called directly like:ExecProcess()
takes about 11 seconds to run.However, if I create a Delegate, and call the sub using BeginInvoke(), the very same process takes over 40 seconds to execute.Here's the threaded code:
Protected del As ProcessDelegate
Protected Delegate Sub ProcessDelegate()
del = New ProcessDelegate(AddressOf SELocal.ExecJob)
Dim cb As New AsyncCallback(AddressOf Me.ExecJobComplete)
del.BeginInvoke(cb, del)
Anyone know what may cause a function to take longer inside a new thread, rather than calling directly?
I connected to the Informix server using RazorSQL, created a stored procedure and tested it, getting the expected answer, so the procedure exists in the database in some form.
I then run the following code:
If ConnectToInformix() Then
Dim cmd As New IfxCommand("dc_routeHasOutstandingQuantity", conn)
cmd.CommandType = CommandType.StoredProcedure
[Code]....
This error does not occur when calling the stored procedure from a live SQL connection.
I want to create an ExpressionTree where a Func(of Vector, Vector, Vector, Vector, Double, Double, Vektor) should be called. So I use
Expression.Call(Forces(0).Function.Method, {Vec1, Vec2, Vec3, Vec4, Double1, Double2})(Vec1-4, Double1-2 are declared as ParameterExpression and Forces(0).Function as Func(of Vector, Vector, Vector, Vector, Double, Double, Vector). But I get an AgrumentException, because Forces(0).Function.Method has seven Arguments. (System.Runtime.CompilerServices.Closure as seventh argument at Index 0).
We have an assignment to create some XML outputs from data in SAP R/3. We are using SAP .NET Connector, for doing this. The problem we are facing is that there are some fields which are not exposed by any standard BAPI. Unfortunately we cannot create customized BAPI on this particular system.
We are therefore restricted to whatever standard BAPI are available. I have seen on internet that tools like ERPConnect can provide access to tables directly using RFC. How can this be performed in VB, without purchasing any such tool, using or without using .NET Connector.
I've been tasked with redeveloping a tool that accesses mailboxes in Exchange, extracts the new emails (and their metadata) and then saves the info in DB. Even a brief perusal of the code shows that it could use some serious re-writing (no use of DirectoryServices for example).
However, from what I can make out the code loads the mailbox being accessed into Outlook and iterates through the mails. Is there a way to access the emails directly? I should point out that, unfortunately, we do not have access to the Exchange servers. They are managed by another department.
how I can simply dynamically edit a cell in a gridview. i.e. Just click on it and type, and post the changes when I lose focus to the gridview?I have tried defining a cell as a template control (textbox) and get it to display and let me type in, but it does nothing beyond that. I cannpt even get the default value from the underlying dataset into that cell.
View 4 RepliesI am trying to download yahoo's csv files from the web and then reading and storing the data into an array or database (for plotting).So far this is what I have:
Dim txtRemoteFile As String = "http://ichart.finance.yahoo.com/table.csv?s=" & sStock & "&d=11&e=30&f=2009&g=d&a=10&b=18&c=1999&ignore=.csv"
Dim txtLocalFile = "C:UsersXXXDocumentsvisual studio 2010ProjectsWindowsApplication2WindowsApplication2inDebug" & sStock & ".csv"
Me.Cursor = Cursors.WaitCursor
[code]...
So basically, i'm downloading the csv to the local directory, and THEN reading it, and then storing it into an array, and outputting the data into a textbox in my VB form. want to do, is to download that URL to a database or array, where I can plot it in my VB from.So:
1) How to download directly to database or array?
2) Which one is better? to download to database or array for plotting?
3) how to plot it
I have a program needs to print directly to a Zebra TLP 2844-Z barcode printer.
I tried the codes in [url]... but an error occurred when i run it, as follows:
A call to PInvoke function 'test!test.RawPrinterHelper::OpenPrinter' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.
May I ask if any one has any other idea of printing directly to printer in VB2005?
I have been trying to accomplish what i thought was a fairly straightfoward task of tying a progress bar to a timer. I have a simple VB app that rotates between windows for a kiosk-type application. I would like to have a progress bar that counts down until the next window will rotate. So i thought it would be taking the total value of the timer and assigning that as the value of the progress bar, then update the progress bar while the timer is going so it can tick down to the end, then restart
View 3 RepliesHow to use resource font directly without saving font in local file system for standalone application[desktop application] in VB.net/C#?
View 2 RepliesInstead of having 1 exe file running..everything. I'd like to split it up, and allow to have multiple things running.Now, to help fight piracy, etc. In this main program, will verify an account, etc. Then if they have the program installed, cool. Allow them to run it
View 2 RepliesUsing MODI dll I can obtain the text from a image saved on the HD:
[Code]...
my goal is to obtain the OCR directly from a image stored in the Clipboard... but everything I write in the miDoc.Create(Clipboard......) code I receive the message that it's not a String what to write instead of ("c:example.tif") to read the image directly from the Clipboard?
i must get a PDF it must be split into 3 parts
[Code]...
i can may do this in HTMl but i think its better to do it in PDF right away otherwise give me a link or help to make it into HTML and then to PDF if someone can help that will be awesome
this is what i want to do. I have a class library project into my solution. Into it i have a class. I want that class to be instantiated as soon as the solution starts. So it can be accesible from the other projects in the solution like this: Namespace.InstanceOfTheForm.Property Is there any way to do that? or something close to that?
[Code]...
How can I print report directly to the printer, instead of viewing it on screen?
View 1 RepliesIs there any way to adjust audio volume directly using .net?
I can only find C++ coding which, sadly means nothing to me.
I would like to be able to record the current Audio Volume setting, change it (up or down), play a *.wav file, then return it to it's original level.
Im running VB.Net 2005.Inside of the program I use the line ystem.Diagnostics.Process.Start("program_) to open multiple programs. For all but one of them this works perfectly. This erros when I try to run a batch file using. System.Diagnostics.Process.Start("C:xx.bat") the batch file opens but then throughs a number of unreconizable java errors follow.
[Code]...
i would like to know if it's possible to save text files into my app. that way there is no folder to contain those files. i'm thinking that i might need a separate form to hold such information, like creating a new textbox for each saved file and it's content, then loading the files from that form's textboxes.
View 3 RepliesI've been kinda stuck on a problem where I have to make Conway's game of life, simply stated I need to check all panels directly around* another panel is there a way to do this easily, other than using a billion if's in the program. Tab index? I could switch to button's if I wanted to but at that same time I find panels to be simpler for stuff like this unless anyone has a different opinion.
View 13 RepliesI developing some system to print directly to passbook printer using VB.NET-WOSA,
The question is,can VB.NET communicate to passbook printer directly?
I just need the concept using VB.NET and sample code to make it happens
There are mail sending program available in the market that can send mail directly. I am trying to create such a program in visual basic 2005 for a long time. Recently, i learned about MX Query. And my concept is like below:
[Code]...
We use a program, called CFPS (a flight planning program) and it creates different flights. I can export this file to a CRD-type. When I open it in Wordpad or something, it looks very familiar to a XML-file ("<item></item>...")...but I don't find a way to read it. What is the best way to handle this problem? It would be time saving if I can import these files directly in my program.
View 1 RepliesThe current applications uses .net printdocument to create print jobs which it sends to a standard printer. We use the blackice tif print driver to capture the output and manage it from there. The problem is that some print jobs take 30 seconds to come out of the queue, and blackice will not allow you to change settings on the driver (like output filename) until the job is complete. This means the application has to wait 30 seconds until it can print the next job. Is there a better way? Can I create/print tif images directly from .Net without a 3rd party print driver?
View 2 RepliesI have a bizarre vb.net problem.I'm working with a 3rd party library with a namespace called Telerik.Webcontrols. The library is in a web site project that I am in the process of converting to a web application project.
Telerik.WebControls contains a class called RadAjaxControl.In the original web site project, I have code that looks like this:
public sub page_load(...)
dim foo as Telerik.Webcontrols.RadAjaxControl
Once I convert to a web application project, it says that Telerik.Webcontrols doesn't exist.
However, the truly bizarre thing is that the following code does compile:
imports Telerik.WebControls public sub page_load(...)dim foo as RadAjaxControl
I'm a newbie in VB.NET, I am trying to directly set the bits of a single variable. For example - dim afloat as single afloat = &h0000000c afloat will then be set to to '12'. However, I wish to actually set the bits of afloat to &h0000000c, which will give a different value.
View 1 Replies