Then I ran into problem #1 - I wanted to call the methods in another sub but they were shared so I received the error:"Cannot refer to an instance member of a class from within a shared method without an explicit instance of a class"o, I took out shared since I didn't know how to fix it, and put in the Following as Global Variables:
Public listener As System.Net.Sockets.Socket
Public handler As System.Net.Sockets.Socket
Public client As System.Net.Sockets.Socket
I wrote a Socket Client which will send the Socket Server some data and get some response from Server. This process will be running once in every 2 seconds.
Now what I need to know is How we can identify the connection lost between Server and Client?
I need this to be implemented in the Client side. If there is no connection then Client should automatically close the connection. Once the connection with the server is available in the next attempt it should connect automatically.
Below is my code, but when i send the message thru client socket i receive Specified argument was out of the range of valid values. Parameter name: size
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim serverStream As NetworkStream = clientSocket.GetStream() Dim outStream As Byte() = _ System.Text.Encoding.ASCII.GetBytes("0800822000000000000004000000000000000920092126012345001")
I bought myself a TV tuner USB stick, and the supplied software does not do what I want. I looked around for some software examples, but everything I've seen uses DirectShow which was apparently part of DirectX-9, but does not seem to be in DirectX-10. I've found AxMSVidCtlLib, but have not been able to work out how to use it.
In my WPF application I want to display items on a map, but since the map is rather large, it is scrollable.My questions are:* How do I display an image on top of my map?
I would like to have my application basically appear as if it was part of the desktop background, I've removed the form border etc and made the background colour of the form the same as our standard company background so it all blends in nicely. I have also made it so the app does not appear in the toolbar and it is set to launch on startup so it appears as soon as the user logs in - so all works fine and looks fine because any new apps that the user opens will open on top of my app. The only problem is that if they press the Show Desktop button (or use Windows Key + D) to minimize all apps, mine gets minimized as well and disappears. Its easy enough to get the user to make it appear again as it has a system tray icon that they can interact with, but it would be better if it just didn't vanish when they did this.Now I know the best thing for this on Windows 7 would be a Gadget but the problem is that Gadget's annoyingly have to be HTML/javascript and a) I'm not great with web coding and b) I don't think it is even possible to do what my app does from a HTML/javascript page... oh and c) I can't find any way to deploy gadgets in a business network (there is no way we are installing it manually on all 300 of our PCs), so the gadget idea is not looking very promising.I'm wondering if there is some window message I can capture and ignore in the WndProc event handler
3. CD thast includes the Windows user interface program
The electronic product acts as a host controller that write data to a file (.wcs), which is in the memory stick whenever the user plug it to the USB connector. After this the user disconnect the memory stick from the electronic product and plug it to a PC that run the user interface program. Untill now the user searches for the .wcs file manually using an OpenFileDialog.
My question is:Is it possible for the program to automatic detect almost plaged or new plaged USB flash memory sticks in order to load open the needed .wcs file? If this is possible then how can I do it?
I am trying to write a simple standalone windows forms project that basically contains various buttons which run external application setup files. The problem is I want to be able to run it from a USB stick. I have created a folder inside the project with all the files I need to call in it. I am using Process.start but the paths are obviously going to be wrong when the project is running from the stick as the drive letter may be different each time. How do I over come this.
I can zip files to a memory stick and transfer to another computer without any difficuly but how do you zip an entire VB project so that it can be put on another computer, unzipped and used in Visual Studio? The part that I seem to getting confused with are the folders bin, My Project and obj.
I am trying to come up with something that will let me obtain a unique ID of some sort for most types of storage devices. These can be USB thumb drives, SD cards, external hard drives, etc.
I have run across this:[code..]
But I can't find anything similar within .NET. Can anyone point me in the right direction? My end goal is to be able to define specific hardware storage devices, and then have my application auto-detect them when they are plugged in.
I have tried to do some research on my own but I haven't found anything substantial. I was wondering if it is possible to pull low-level hardware information off of a HDD or stick of RAM using the latest visual basic.net. Mostly curious in pulling serial number and model number.
I am using a WPF richtextbox to create a syntax highlighter for code provided in a textbox. I want to have it automatically adjust the rich textbox as I am typing, using a thread timer I reset the contents of the rich textbox. I am trying to keep the cursor where it is suppose to be. I don't loose any text characters during the parse (except line breaks).
I don't know how to keep the caret position where the user has left it in the text. It defaults to the end of the document. I attempt to store the current caret position in the text and then set it to the document after I make my changes, however the error I receive is "Cannot set CaretPosition to be outside of RichTextBox." So I set the caret position to the bottom of the document. WPF, VB.net, .net Framework 4.0
Here is the code. Public Sub FormatText() If IsNothing(rtfContent.Document) Then Exit Sub End If Me.rtfContent.IsEnabled = False [Code] .....
I want to have a stick figure kind of person who moves around with the arrow keys, and i want to have him move in different positions depending on what key is pressed. What is the best way to acomplish this without using pictureboxes?
I'm working with a project that is WPF and VB.net. I want to visually simulate "dragging" an object (though I do not want to use standard drag and drop for reason of purpose).Basically, I have a label object that, on its MouseDown event, I want it to follow the mouse cursor inside a 640x480 solid-size grid (but not outside of it!). Mind you, this grid is centered inside a full-screen window. Again, the object should not follow the mouse outside of the grid (I'm guessing a "ClipToBounds = True" here)Then, on the label's MouseUp event, I want it to either stay in its current position or return to its original position, as determined by the value of a boolean variable set by another object's MouseEnter property.Note, if it would be easier to work with, I can change the grid to a canvas in a cinch. I'm guessing that would be desirable.
How do I make the object (label) follow the mouse cursor inside the grid/canvas, but not outside of it? This needs to happen on the MouseDown event of the label.How do I make the object "stick" in its current position? (From this, I can probably figure out how to make it return to its original position on my own.
I have a program made in vb 2010. The problem is it uses my files on the computer such as different cursors and pictures and I really want to be able to make it portable and stick it on a memory stick and run it on other computers. Is this possible?
I'm looking for a way to detect when a new USB mass storage device is inserted in one of the pc's USB ports... I need to get it's drive letter and check for the existence of a particular file.
project im working on for my course,the idea is a photo printing machine that loads up 4 images if usb stick is checked and a different 4 if memory card is checked. and then whatever image is selected appears in the big picturebox on the left [URL] i have 2 print size options set as radiobuttons, radiobutton 1 = 6x4, which costs 25cent per photo, radiobutton 2 = 8x10, and is 50cent per photo.i also have a textbox which will display the number of copies to be printed So here's my dilemma, when the print button is selected alongside one of the radiobuttons i want it to display a message saying something like this "you have selected (whatever the amount of copies)of this photo sized 6x4, or 8x10 depending on which radiobutton is selected, and i want it to display the total cost which is the number of copies multiplied by the rate for the print size selected, then an option saying "Do you wish to proceed" Yes or No.
I did something similar to this in class earlier in the year but cant remember it, it was an airline booking program with 3 types of payment cash, visa or mastercard,upon booking a message popped up saying there is a certain percentage discount for using visa or mastercard
With this code i check the serial serialnumber of a usb stick.
[code]...
It is not perfect because the programma crash when there is no usb in de PC.But how do i search fot the sctick if it has a name , for example PPH ? And not G: , because it is everytime a different station.
So how can I get the fonts to remain the same without having them installed on the system???
Details: I have been dealing with an issue for quite a while now. I set a specific font for a Form. Then, once I build, an try to use it on a different computer that doesn't have the same fonts installed as the computer I made the .exe on, the fonts change.
so now my question is how do i connect the WebSocketServer.cs to the index.aspx ?
As a start, all I'm trying to accomplish is just to get the Web Sockets working, and have the connection established, which then will alert("Stock Ticker Connection open ...");
how do I keep a Socket declared forever so i can call it in other methods?
All the tutorials i've read just have a server, client, server sends client message, client disconnects. What if I want to remain connected? I've tried making the sockets global but that didn't work somehow.
i can connect socket well but i want to ask how can i determine that socket has received data i want to create sub or function that handles socket.receive byte the code i have is
Dim byteData(100) As Byte Dim size As Integer = soc.Receive(byteData) 'receiving the data from socket and reading its size For i As Integer = 0 To size Console.Write(Convert.ToChar(byteData(i))) 'Convert.ToChar will convert the byte value into character Next
i want to start this code each time when socket receives something?
i'm creating an Asynchronous socket programming in vb.net. i've utilised the code from Asynchronous client and server code frtom the following links:m a new user so could post only one link fully)When I try to connect the for more than one client the second client always waits until the first clientcompletes the call. i want the clients to accept calls at the same time
