I am developing an application which will be used to scan the barcode from a particular document, as i am just developing who i will get know that barcode scanning is working i dont have device at the moment
View 2 RepliesI have a multiline text box which is used to enter barcode numbers into. I have a barcode scanner and all the barcodes will end in L2, L3 or L4. Once a barcode is scanned in I need VB to detect either L2, L3 or L4 then go to a new line and repeat. Where I can start to accomplish this?
View 4 Repliesi was wondering if it was possible to write my own firmware that will run on a device im making. This device is very similar to the price portable price checkers you see in grocery stores. it scans the barcode which returns an id number. More information about my device and about the big project im working on can be found here: My Idea For A New Type Of WCP (Wireless Connection Protocol)
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I'm sorry if the title is misleading but I have to develop the format for a barcode (either 1D or 2D, doesn't matter). The barcode needs to include a Purchase Order #, Bill of lading #, as well as the Line #, product ID # and quantity of each item that appears on the purchase order. Here is what I've come up with so far:
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Currently developing an automation tool to test new desktop OS builds at work. Need to be able to open menu items on toolbarwindow32 windows (main menu of explorer windows). Now this requires retrieving information of all the buttons on the toolbar, obtaining the button ID of desired menu and sending a WM_COMMAND message with the ID. I'm having trouble retrieving button information.Now im using openprocess, virtualallocex to allocate virtual memory in the target process, and then sending the TB_GETBUTTON message with a pointer to the allocated memory then reading out the result. Allocation and the send message works fine but reading the processmemory back out is failing but not returning an error code, getlastwin32error returns nothing either.
<StructLayout(LayoutKind.Sequential)> _
Public Structure TBBUTTON
Public iBitmap As Integer[code]....
As mentioned above, the read process memoery call fails, the return value is -1 The documentation states it returns 0 for fail, non zero for pass. Wondering if the problem lies in incorrect use of types in pinvoke calls or the struct tbbutton is incorrect, or my use of a pinned pointer is wrong,or whether I need to use adjusttokenpriviledges to ensure I have rights.Though I'm running under admin and examples similar to this don't use it.
Relevant documentation
Virtualallocex
Read Process Memory
TBBUTTON Struct
I am in the process of developing a messaging framework for a windows application that sends messages to a java application. To be precise when the win app wants to send a message it simply drops the message in a common database table which will be picked up by the java app. The windows application is deployed across 10 application servers (10 instances) over citrix for load balancing.Each instance of the application is capable of sending a message to the java application and each of these messages should have a unique id. From my end I need to make sure every message generated has to carry a unique id so that they can be identified when necessary. All the messages can be cleared every day or two.i am not quite sure about a best method of achieving this. Initially I wanted to create a static method that serves the next available id (incrementing the last id by 1). But this approach willn't guarantee unique number as the application starts only when at least one user is logged on. For e.g .On one server the app starts when a user logs in, he then sends a message and then the application stops when that user logs off. So when a next request for the app comes to that server a new instance will be started.
View 3 RepliesI want to learn programming techniques so can make both windows and web applications more user-friendly, faster, safer, reliable and easier to deploy.
View 4 RepliesI'm a college student who has a basic-intermediate knowledge in VB.NET, C++, C# and Java. I'm planning to develop an application similar to Microsoft Windows (Windows and Sharing Center ).
The application will able to perform Wireless Detection: scanning the area for available wireless network and presenting them to the user of the software, and then user can decide to which network he/she wants to connect.
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I am new to vb.net . I was developing application in c#. Now i am working in vb.net. i have a query in vb.net. How to write compund assignment in vb.net ?
ex :
In C# ,
int a,b,c;
a=10;
b=c=a;
if i did it in vb.net means the value of b is set to false. how do i solve this problem?
I am trying to develop a chat application using Visual Basic 2008. I have referred some articles on the internet like [URL]...rogramming.htm and got the concept of connecting and sending data. But when it comes to real world chat applications, there is user authentication and all that. So I was wondering if it is possible to make my own Windows Live Messenger or Yahoo Messenger!!. I searched web for such a sample or source code, but could not find any. Has anyone here created such an application??
View 2 Repliesi developed a very simple vb.net application and i need a way for every user to verify that they have paid for it. i would like the simplest method possible. it will be an off-line registration. I am actually looking for a way that I can program this easily myself, and am not interested in third part solutions.
View 2 RepliesI am using Richard L. Grier's Enhanced Serial Port dll to read input from a serial port barcode scanner I notice that the datareceived event fires only once per barcode scan, but the delegate sub fires twice per barcode scan. Once for 1st half of Barcode , 2nd for 2nd part of barcode This makes it hard to capture the full barcode so it can be passed to routines in my vb.net 2008 windows application In Richard's example 'Test Enhanced Port' program he sends it to a textbox using .selectedtext and it works fine Richards Delegate code ......................
Public Delegate Sub DisplayData(ByVal Buffer As String)
'This delegate routine marshals receive data from the receive thread context DataReceived to the Windows Form STAThread context
Private Shared Sub Display(ByVal Buffer As String)
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I am trying to set a variable to the full barcode to pass to routines, instead of writing to a textbox but am not having any success
I am a student and I am about to make a program that will use a barcode scanner well ofcourse to scan a barcode. My problem is i don't know what library to use and what certain things i need to do so that when i am going to scan a barcode it'll be something like show it on a textbox and pull something from the database. i've actually research some. i've seen mscomm1 (not so sure about that) and POS for .net (haven't fully understood its use) were those will help me develop my program?i have a metrologic ms9520 Voyager barcode scanner. and i am going to create a program for it in vb2005.
View 1 Replieshi, i am developing a windows application in visual basic 2008. when i will install or setup my application to clients' computers, do i have to install the dot net framework 3.5 in every single pc or i can include dot net framework 3.5 in my application.
View 4 RepliesI am developing an application using VB.Net which is a simple executable which is to be run from a network drive of our company servers. Most users can access this executable without issue - others however can open the executable but have no connection to our database (even though when running the executable off a local drive such as C:, the database works no problem).
From some posts I have seen this might be a CAS issue - however our IT department suggest the issue might be down to different version of the .NET Framework being to blame. Firstly, is this the issue? Secondly, how can I develop my application to work with different versions of the .NET Framework? Surely this doesn't mean developing many different executables?
I am developing an multilingual application in vb.net 2008.I had given a combobox for language selection when user select any language like marathi or hindi then all labels are change in the selected language but i am facing problem with textbox if i select any language it takes input from user in english only.I want when user select any language and enter data in textbox then he is able to enter data in the selected language.
View 2 RepliesI have to develop a new application in windows. in which i have to develop following thing but i am not getting how to develop it.I have to develop following are the two points:1)To show the http addresses that are visit by other computers on the wireless network.
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I'm not new in visual basic but I finished a book of visiual basic in 2005. Now I'm planing to be a2z software developer on windows platform. Do you think that visiual basic is strong language or complete tool for all kinds of software development ? Will C++ or C# come on my way for software development while i'm visiual basic.
View 3 RepliesI am looking for a contol either listbox or listview to support my requirements. Basically how my application looks is:
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Having said these things. I used to program in VC++6, VB6. But using those version now seems not realistic now as I lost touch. But if I have to use the latest 2008 versions, for which I do not have any experience seems scary. So, If you are reading this , and you have got some experience in these fields or using controls that support my requirement, can you please let me know which programming language or IDE and Control should I use to develop this application. PS: the image is made using mspaint and does not represent actual program.
I am new developer of Visual basic and planning to develop WIndow XP PC based application for small retail outlet business, the main functions are to records the daily business transaction and produce reporting at month end.
My questions is what visual basic releated software or tools that I need to install in my Window XP PC for developing this application??
I am developing a twitter application but getting a null exception. when I searched indeep I found I am not getting any Users array from getTimeLine() Method.My user name and password are correct (The application is actually available on twitter API site.)
View 4 Replieshow to develop unicode application in vb.net and sql server 2008 ?how to start develop and what are the things i have to consider to develop effective unicode application ?. this application should support japanees and english language based on user selection.i took steps but i don't know it is correct.
1. i created tables in sql server with fields, for strings - NVARCHAR, for integer INT, for datetime DATETIME,for numeric NUMERIC.
2. i created another setting-table to have all screens name,label names ( for labels and grid column headers ) and corresponding japanees display names and another column for english display text.
so i'm just going to fetch Japaness/english display names from setting-table on form load and change the labels.Are these correct ? or anyother way to do unicode application effectively ?
i've developed vb.net window application in english language.. its working fine but it has to support japanees language also.. Displaying text, input text every thing should be japanees... so user can select english or japanees, based on that label, input control language has to change..
View 1 RepliesJust knowing 20 commands i am developing a app?very impressed on myself!Just knowing 10 commands + common sense + special sense each man has i had world most dangerous spy tool....but on my guru & best friend advice i dropped it..but in future will use for good purpose So here is the new scene We are team of workers had blogs,microblogs and other things i decided to create a tool for my self which is like office assistant to assist in our work at office
my tool will do the submission process when we are not in our office
my idea is using a web browser control and do it with vb commands
so kindly think yourself in such position do you agree to do submission task with web browser control or you can do it some other methods?
whats your opinion? what i mean open a website on web browser control submit the details from listbox(which increment on every submission)i think you now got how we are going to do this!!!
so i am need some one advice shall i proceed with this?i had three big challenges
1.Time
2.Yes Of Course Time
3.Ya Time But Time + Work Accuracy
so kindly guide shall i use the web browser control or use method like direct server post?
I am a new bee in windows application in VB.net.I am now in the process to develop a windows application from zero.I have searched online on the reference to develop a windows application from zero but fail.
I also fail to find any resources on beginning on vb.net which introduce all the tools inside such as menustrip.Does anyone has any idea how to find out the resources?
I'm about to start a new project and want some advice on how to implement.I need a web application which contains a booking module for reserving timeslots, and a time management module which will enable employees to clock in / clock out.
If I am writing an update to the time managment module, I don't want to disrupt the booking engine availability by releasing a new solution containing both modules.to make things more difficult, there is some shared functionality like common users, roles and security.Here's a suggestion I've gotten, which sounds a bit cruddy, but may be functional.Write a 'container' web application which consists of basically a frame, and authentication / security features. This then has links which, will load the 2 independantly built and released web applications into the frame.I can see that say, if I wanted to update the time management module,
I need to setup an application to scan a barcode from a packing slip and the associated fulfillment items on a windows CE 5.0 device and update the inventory on the server. I'm using VB.NET. However, what is the best way to interact with the database? Integration Services, ADO.NET, RDA... etc... it's a bit overwhelming trying to figure out what I should use to interact with the database. It's currently an Access database, but I imagine I'm probably going to need to migrate it to SQL Server or SQL Server Express.
I'd also need to print the packing slip to a network printer from the device. Is there any way to do this?
im developing an application that constantly checks a particular webpage for changes in the page. im using the webbrowser.documenttext to read changes in the source, its working great. until when i tried to use webbrowser.refresh(), an ugly popup that says. "To display the webpage again, Internet Explorer needs to resend the information you've previously submitted.If you were making a purchase, you should click Cancel to avoid a duplicate transaction. Otherwise, click Retry to display the webpage again."
View 2 Replieslaterly I've been trying to think of smarter ways to use code my programs. My Uni class's latest assignment involves a Lawn Mowing Caculator. I've designed a form below, but now I'm stumped for where to start on my code for it.
View 4 Repliesi 'm develloping an application that uses a sql server database, in my computer where i'm programming i installed the sql server in the same language of the OS, in the tests of the application everything worked fine. Biut after migrating the db to the main server, the values went crazy.. After some research and tests, i saw that the language of the sql server was in english and that was the problem.
My language settings says that the decimal separator is "," and the agrupment digit it's ".", and the sql server works in the other way "." is the decimal separator and the "," it's the agrupment digit. In my code i was using the CDEC to pass the values to the DB, to solve this i removed the cdec and send the parameter as a string (So if i send 2,33 to DB with CDEC i get 233 if i send the 2,33 string i get 2.33). This works for now, but i don't know if in the future i'll have problems...