I'm sending TCP messages (numeric and/or text data) of various length; Approx: Each 200ms a <50 character message, and rarely a 50,000-500,000 character message. I'm trying to find a way to handle these variable length messages, and been advised to have a fixed field at the start of each message that gives the length. So I set a 7-character string that will hold this integer value. A message may then look like this:
0000015DATA|490
Now, I'm still a bit unsure how to finalize this. In any case I guess I need to set an initial buffer size, which in example below is set to 1024. So what if the message is longer than this? Would I need to save the current message parts until the full length has bee received, and keep track of how many characters is left etc? I made an attempt of that in code below. It doesn't give correct result yet, but still;
Const READ_BUFFER_SIZE As Integer = 1024 ' Amount of bytes to read in each chunk (?)
Private readBuffer(READ_BUFFER_SIZE) As Byte
Private _serverIp As Net.IPAddress
I'm creating a timeline (Availability report) report of appointments in my system. It could show multiple user as this pic shows. I have setup my report to look like:for Each 1/4 time segment there is a related db field. In the report I set the color of the time segments based on these db fields. My Issue is that I need to determine which time segments need to be set, based on a start and end times. This calculation will only be working with one days worth of time (6am-9pm). I've currently setup a array of Boolean values to represent each time segment. I pass that array to the "add to db function".
My problem is figuring out what is the best way to do this calculation. For example, If I have an appointment starting at 9:15am and ends at 10:30am. I'd need to set the following segments
a file could be downloaded in more than one segment like what IDM software does.of course it causes to speed up in downloading a file ,and now I've search for a vb.net code to download a file for example in 4 segments.and then trying to simulate a complete Downloader Application like this sample
I have a particular link that I'm trying to convert to an ASP:LinkButton place holder so that I can control it's visibility based on the user type: <asp:LinkButton id="linkColumnsSelect" runat="server" Text="Select CSV Columns for Export" Href="javascript: void(0)" Visible="True" />
I was able to remove the PostBackUrl by adding "javascript: void(0)" to the Href property, but now I have the problem of getting a real ID that I can use in javascript. As it currently stands, this creates an ID for the item of ctl00_ContentPlaceHolder1_linkColumnsSelect, however I need that ID to be "linkColumnsSelect" on the client side and still work server side (for jQuery coding reasons that involve looping). Is that possible? Or do I just need to adjust my jQuery to account for the placeholder segments of IDs?
dim str() as string str()= "C:dir1dir2dir3...dirn-1dirn".split("") doesn't seem to do it.
I get "Strict won't allow conversoin from character to string" or some such and no clue as to what I should be doing.Seems like there out to be some 'find() w/o having to loop thru each characater inte string, counting and saving the locations of "".I only want to work w dirn-1 and dirn.
I need a simple win api inside c# / vb.net, to read a text out of a message box. I have a function to read a message box title, but i have no idea how to get the content text.The messagebox title function is:
' Function to retrieve the popup window associated with the form, as well as to ' find the child windows of the popup... Private Declare Auto Function GetWindow Lib "user32.dll" ( _
create a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realise, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that there are no rows in the dataset.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim name As String Dim icn As String Dim message As String
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click Dim intFat As Integer intFat = Integer.Parse(txtFat.Text) lblResultDisplay.Text = txtFat.Text * 9 End Sub
I have another problem regarding send message api cause i didnt find any good info on the net.
First of all Send message has: Hwnd Wmsg Wparam Lparam
What do those mean exactly ? Hwnd is the main window's hwnd or the child? Lparam and Wparam are pointers? How you get them from an external application? How you set Wmsg to send a string?
I have an application that uses SendMessage to send a list of numbers one at a time to a query window in the database we use. The problem is that when SendMessage fills the textbox, then clicks "Query" (hWndQuery) my application freezes up until the query is finished running, which sometimes can take up to 20 minutes depending on the query. Any way to force the program to be responsive after it 'clicks' the query button?
Below is my code - I commented where the program freezes (15 lines up from the bottom):Private Sub Query() Dim hWndQQ, hWndTextBox, hWndQuery, i, iResult As Integer Dim sTemp As String sTemp = "" bCancel = False [Code] .......
I had an idea for an MSN (Windows Live Messenger) "addin" today, which I thought was a great project for me to try.Basically, I want people to be able to type LaTeX code in their MSN conversations, and my application parses the LaTeX code and displays (probably in a separate window, but if possible inside the conversion window) the math formula.
I am probably not going to get it to send the image in the conversion window, but I will be happy if I can get it to display in a separate window.Basically, all I need for this to work is to capture the text that a user receives over MSN. If it contains a certain token (like "$$ ... $$") then I can try to parse the text between the dollar signs, and if it is valid LaTeX I can show an image of the result in a separate window.
So, I probably don't even need an actual MSN plugin / addin, if I can just get the received text by some other means.
1. some basic Windows Live Messenger add-in programming examples / tutorials? I've never done this before, and have no clue how to do it... VB/C# are both fine.
2. how to retrieve the text that you receive using either an addin, or some sort of windows API ?
So I'm looking for either an addin, or, if possible, a completely separate application that basically monitors each and every window and sees if it's from MSN, and then retrieves the received text...
Is there any way to click OK on a webbrowser message box? After clicking a button using: WebBrowser1.Document.GetElementById("123").InvokeMember("click") a message box pops up with OK and Cancel buttons. How do I click OK?
This is something probably very simple for you all by the looks of these other thread but I can't figure it outThis is a hotel reservation order form.IsFormComplete function checks to make sure the form is complete, if true it calls GetOrderList which... well you get it.The problem is this:I have checked functionality at random and everythn there is an error, message box displays what is wrong... except one thing. When you complete everything but choose cash as the payment method and click place order, the message box pops up with the GetErrorList caption "Please Complete the following:" BUT there is no error reported after. I'm losts, I know, it's probably terribly written to begin with but I'm all of a week in to the class so I will get there.
Option Explicit On Option Strict On Option Infer Off
I noticed in the Intermediate Window a message which read:A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll..I do not where in my program it happened. Can someone tell me what this means.
i'm currently making a program that converts every letter into some other letter creating a secret message that only this program can convert back into english. Could some help me with the convert code? I understand i would need 2 textbox's and 1 button at the least.The button would place textbox1.text into textbox2.text then it will convert lets say (if textbox2.contains "a" then) i dont know after that. i would want it to change the "a" to "g" instead. without doing any other change. [code] Now this is just converting the letter "a" to letter "g". I would want the whole alphabet.
I want to make a winform program and to do use one button click and send sms message to phone [URL]..but , I try the web service and a lot of method , it can't work , please help , anyone can give me a woking code ?
OK this is my third thread on TCP problems and the first two I managed to figure out for myself within 10 mins of posting before anyone had a chance to reply so lets see if it works again - failing that if you have any advice I'd be most grateful.
I have a server app which should be sitting and listening for messages on one port (4000) and then processing requests and sending data back via another TCP client on a different port (4001). My code is based on someone else's example and it works fine sending and receiving the first message, however after the first message the listener seems to stop listening and never gets any further messages.
Am I misunderstanding how they work? After I get the first message do I need to close the listener and create a new one, or should the same listener keep working until I close it?
I'm making a simple decoder. Type a message in the "message" text box and it spits out a code in the "code" text box. If you pop a code into the "code" text box it spits out the message in the "message" text box. Seems simple, right? Well here's my problem. I typed "The quick brown fox jumped over the lazy dog" to test it and it will put a lowercase "f" at the beginning, put letters that aren't supposed to be in there in there, and replace what should be upper case letters with lower case. I commented out the code for replacing symbols because it seemed to work fine before I put them in the code but still the same result. I checked over the code to see if I mixed stuff up. Like I accidentally put the replacement for a lower case "e" as the replacement for a lower case "h" but I can't find anything.
-User Opens program -User goes to settings.(Settings has a bunch of RadioButtons) -User Customizes settings, checks certain buttons. (How would I pop up a msg when the user clicks "Ok" with out checking something? -When "Ok" is pressed, it will "save" -When settings is opened again, the same RadioButtons will be checked.
Right now, if I exit the settings form, and open it again, the radio buttons are cleared
I'm trying to time how long an operation takes in Visual Basic (VS 2008) but its not working. the code I have is as follows:
[code]...
this is in an OnClick event, so what happens is that the user can click a menu item, and it goes and sends any changes it has to a database, and pulls down any new changes to a local data cache. This operation takes time, depending on how many changes are on the server and how many are cached locally. I've thought about making this a background task, so it doesn't draw away from the main app while it's running, but before doing that, I'd like to get an idea how long the operation takes. Since I can't exactly do a progress bar, I figured using the stopwatch would tell me how many ticks/milliseconds would occur between click, and when the "total synced" message comes up, but every time i run it and do an update the message always shows 0 ticks/ms. I don't think it's accounting for the delay, just from start to finish. Is there any way to make it so it detects a message popping up and times off that?
When I do the try/catch method in my vb.net project I will try the code I want and when it can't do it, i make a message box right after the catch method. The thing is that it will show the message box, and then another message from the program itself. Like for example, I have here a MySQLException, and when i click ok on the message box, it will show another one right after showing the exception itself. How would I be able to get rid of this so the user doesn't have to see this, and the program can continue.
Well I'm trying to have a if statement where when the user inputs the Title of the book [Title] then if it contained any letters then this message box would pop up. I also have another if statement where if nothing is there then messagebox would say that please input a name. [Code]
sendmessage on twitter and Facebook i use WPE for packet but that packet to encryption please source code or example for sendmessage on Twitter and Facebook
