How To Use Scanned Barcode In System
May 7, 2009I have a barcode scanner & I want the output of my barcode scanner as input to my system.
View 1 RepliesI have a barcode scanner & I want the output of my barcode scanner as input to my system.
View 1 RepliesI have a USB bar code scanner that is acting as an HID keyboard emulation device. I want a web page that, for testing purposes, pops up a JavaScript alert when a scan is done. I don't want to tie the event to any visible control such as a textbox so thus, I won't have focus on any control to capture the scan input. Can this be done? I'm using VS 2010 with .NET 4.0 and VB.NET with a Symbol USB bar code scanner.
View 1 RepliesI am trying to make a program that would allow me to track all my customers and flights. My idea is to have a label for every seat of the plane. Then I would want it to highlight and turn green when the ticket's barcode is scanned.I think it would be cheaper to do it this way then to buy some corporate software.
View 18 RepliesI need codes on how i could create a Library System using Barcode Reader. I have no idea at all on how I could create s system using barcode Reader
View 12 RepliesI'm looking at creating an asset management system for all our electrical equipment, the equipment already have security labels with barcodes on them. What I am wanting is to be able to do is create a form where i can state some general information about the piece of equipment and then scan a barcode to register the equipments security number. so that if an employee needs to use that piece of equipment off site then I can just scan the barcode and register that the employee has taken the equipment.
My understanding is that the barcode reader is generally plug and play and acts as an input device? So what I would need to do is find a way to identify which input device is used, and if it is the reader find a way to assign a labels text to the value that has been read, rather that insert it into a textbox? I also want to display the actual barcode itself above the label, so I assume I would need to re-generate the barcode as an image and then display the image?
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:
[Code]...
I 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)
[code]....
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 RepliesI have Parent and Child Form I have a button to save on the child form, which uses the code below, all works fine.
Private Sub menuItemSaveAs_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Gdip.SaveDIBAs(Me.Text, bmpptr, pixptr)
End Sub
Which then uses code below, located in my GDIPlusLib class:
GDIPlusLib
[Code]...
I would like to improve a number of images accquired with document scanning, does anybody have any VB sample code for dynamic thresholding to achieve a result something similar to the images shown at the bottom of the page;[URL]...
View 1 RepliesHow to save the scanned paper as pdf file. I use vb 2005 and I develop a system that will save a paper -which the user will scan it by scanner- to a pdf file. I know the code for scanning the paper but I don't know how to save as pdf file
View 1 RepliesI am Trying to develop an optical character recognition system. I have a problem regarding the scanned data. Whenever i can a document the scanned image seems to be a little slanted/rotated. I am not able to figure out a way to rotate the image/scanned document.
View 3 RepliesWe need to capture an scanned image from a flat bed scanner and store it in an SQL table.
Does VB.Net 2005 have any tools to allow us to manipulate the scanner and its capture its output programatically?
I am trying to calculate an equation every time I change something in the Worksheet. [code] Everytime I try this formula everything locks up. Maybe I could limit the rows and columns to be scanned to D2:F500.
View 4 RepliesI am developing a data entry s/w for entering data from Scanned PDF Documents,
how to show pdf document side by side to vb.net form to easily enter data
I want a web page that pops up a JavaScript alert when a bar code scan is done. I don't want to tie the event to any visible control such as a textbox so thus, I won't have focus on any control to capture the scan input. Can this be done with JQuery?
View 1 RepliesI have a scanned driver license file in bmp format,is it possible to read license information in vb.net.
how to read drver license OCR details?
Am new to this area, it would great if any one help me on my request. I would like to retrieve each words co-ordiantes (x,y axis) from a jpg file, which is scanned hard copy. I know this can be done with the help of OCR sdk's. But i dont know how to integrate those sdk's with my .net application and retrieve the value. It would be great if some one suggest me the best way or sample codes to do that.
View 5 RepliesI want to develop a small application that reads in scanned barcodes into a database table - Would a vb.net form based application that connects to the database be best approach? What I'm think is each time the user scans in the barcode - a message appears on the form saying the barcode that has been scanned.
1.Would I need to program anything within the program to check whether the barcode scanner is connected (or is this not necessary since it works like a keyboard device?)
2. How could I automate the scanning in without requiring any user intervention like a button which saves it to the database - so basically as soon as a barcode is scanned in - it is saved to the database and the next barcode can be scanned in etc.
how would you identify the shape of text like inside a scanned document containing text and graphics?In a perfect world,users would never enter data in the wrong form,files they choose to open would always exist and code would never have bugs.[URL]
View 5 RepliesI have scanned a map which was in UTM WGS 84 projection system. The scanned map is now in jpg format and loaded into picturebox. If I select a point, how could I know that point's latitude and longitude? How could I integrate a projection system over the image displayed in picturebox?
View 1 RepliesI am writing an inventory control application in which a barcode scanner will be hooked up to a laptop computer in our shipping/receiving department. What I'm wondering is, whenever a shipment comes in and the receiving clerk starts scanning the products, what exactly do I need to do in order to setup our database so that the scanner recognizes which vendor/product etc. and puts the data in the correct tables. I've written inventory control apps before but never one that incorporated the use of a barcode scanner.
View 8 RepliesSo i bought a cheap USB barcode scanner to play around with. So far pretty simple to use, on theing thats baffling me though is after the keyUp event and the string parsing, how do i reset the value of the textbox that reads the string to make it wait for a new keyup event. Eventually i'm going to try adding rows to tables and autocompleting cell values based on the parsed string. So what would be the best way to start looking at this?
[Code]...
Is there any Visual Basic SDK that will let me scan a barcode from a webcam, not an image? I have seen some that read from files, but this is not what I am looking for. If possible, I would love it if this is free!
View 2 RepliesI have downloaded the BarcodeLib.dll from[url]...
And however, my barcode scanner cannot read the hard copy barcode images that i have printed out as the following.[url]...
I have done research and some articles mention that dimension of the images will effect the readability of the barcode.
May i know what is the correct dimension to make my barcode images to be readable?
I am working on a Point of Sale system using VB express 2008.I want to generate invoice with Barcode and also stock items with Barcodesort of Barcode system i should use for this and also how i can code to generate and pring the Barcod
View 7 Repliesi have a inventory software in visual basic and sql server. there i have product info, product receive and product sales option. there i need to add a new feature in product. every pcs of product will have barcode which will be generated by my software at the time of receiving the product. and at the time of selling the product, the user will only scan the barcode by the device.
View 1 Replieshow can i convert an integer into a barcode?
View 6 Repliesi am using inventory system which is base on stock. i want to create barcode for each item through vb.net.
View 5 RepliesIve been trying to find a example for using itextsharp to create a barcode in vb.net. i have found a few C# examples. And apperently im not smart enough to convery the code myselfHere is an example. Perhave someone could tell me what to do to convert itI however would like to save the file as a jpg.
Quote:
# dfContentByte cb = writer.DirectContent;
Barcode39 code39 = new Barcode39();
[code].....