How To Commnicate With A PDA Built-in Scanner Using Smart Device
Sep 26, 2009
I am developing an application to run on a PDA. The PDA is running on Windows CE 5.0 and has a barcode scanner integrated. I am using Framework 3.5 VB.Net 2008 smart device project to develop my application. Now, my question is about opening the barcode scanner to read scanned barcodes into my PDA application. I used system.io.ports to open COM1, 2, 3 and I can get them opened but obviously none of theses ports opens up the scanner.Any idea how to open/communicate with the PDA scanner?
i created a smartdevice project,,(target platform =pocket pc;device=emulator; editor= vs2008). (i didnt write any code additional to template generated by vs2008 ) i tried to debug it with F11 hit(step into) ; vstudio asks me to locate a source file named 17d14f5c-a337-4978-8281-53493378c1071.vb. i dont know what this file is; same problem does not occur if i choose C# project.
I have an xml file stored on an web server and I need to read the data using vb.net for a smart device application.I also need the ability to select indvidual nodes of the xml file. It currently a simple file but will be expanded upon. [code] I need to access the name node to start with.
i have novice skills in programming in vb.net,I just finish my project and applications for Data logic memoir wherein the data has been save to text file or SQL compact server database in the Handheld Device and use Active Sync Connection to pass Data into H/PC to Desktop P.C and Vice Versa.I just shift now to C#.net and start learning it and i just successfully transpose my Smart Device Project from VB to C#.
But now i want to Start Projects linking The device to server using Web services
i was using a pocketpc phone and i want to have a program it with a database.i am not familiar w/ the database of vs 2k8 because it was using a dataset i i dnt know how to connect the database of that...
I have the following code: [code] and it's ment to change the backcolor of a label during runtime, which works.But when I use the same code and use it in a smart device - Windows Mobile 5.0 Pocket PC it don't work and comes up with the following error:'ColorTranslator' is not a member of 'Drawing'.Is there a way I can change the backcolor of the label during runtime when creating a smart device application (windows Mobile application) ? I want to be able to use a custom color rather then one already set in vb.net
i 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)
I'm doing a project with vb.net (smart device) on visual studio 2008 and I need to connect to a database on the device itself (I do not have a physical device to test, only emulation). How should I go about doing it? I would like the database to be in the device on start up.
I'm planning on using the Smart Device Framework 2.3 to use the signature control panel in a Windows Mobile 5 application using the compact framework 3.5.
The control has the option to save the signature as either a byte array of points, or as a bitmap. Now seeing as I want to store the signature in a sql compact database, I guess the byte array is going to be better. The trouble is, I'm not sure how to render that in a full WinForms application after I've transferred it back to the desktop.
I need to show the signature on a report, so it would need to be an image I could link/embed into the report.
I am attempting to create a new mobile app using VB in visual studio 2008. I select "File" "New Project". Select "Smart Device" in new project window. Select the "Smart Device Project" from templates. Select ".NET Framework 3.5". Select "OK" and get the dreaded "object reference not set to an instance of an object"
i have to develop a ticketing package for a client...and he wants to use smart cards too...i would need to develop the package on a smart device i.e. a mobile application and will have to read the card on the device itself ...i have zeroed on the instrument from motorola. and an blue tooth connected printer to print the ticket.how to read the smart card ...i have searched a lot but have not found anything good.the smart card would contain the amt. balnce in it...and after the transaction i need to again enter the balance in the smart card...
Is it possible to immediately use code that is built in a dynamically built assembly?I would like to create an instance of an ENUM built using.http:[url]......
A Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
[code]Seems to fetch data from my one and only internal IDE drive.The line objWriter.Write("Active: {0} ", queryObj("Active")) does not work if you change up the data in between the first set of quotes. Thus changing Active: {0} to Active: {1} causes an error that the Try Catch doesn't catch (this for...next is in a try catch).I assumed that the stuff inside the quotes was just text and could be changed to anything? Why doesn't the try catch catch it?Doesn't read a USB external drive when attached.i changed {0} to {1} and it crashes.
look at the following picture, which showing smart tag for DataGridView Now I'm creating new component and I want it to support showing some properties in Smart Tags, how to add the properties to the smart Tag?
I have a smart tag up and running for my user control but I also want to add a UITypeEditor collection editor to it as well. If I add the collection property to the smart tag in the usual way then I get the ellipse appearing as expected, then if you click on this you get the Collection Editor pop up but if you click ok in the Collection Editor I keep getting an error:
error using the drop down: unable to cast object of type BarChartControl.BarChartActionList to type BarChartControl.BarChart
In the DesignerActionList class I have the following:
Public Property Bars() As BarChartControl.BarItemCollection Get Return _linkedControl.Bars End Get
[code]....
and in the GetSortedActionItems() of the DesignerActionList class I have:
items.Add(New DesignerActionPropertyItem("Bars", "Bars", "Bars", "Manage bar collection."))
I downloaded VB because I was instructed to do so in order to be able to convert powerpoint files to smart notebook files.unfortunately, this does not seem to do the trick.
I want to detect when the smart card reader is connected to the computer. I used a loop structure/timer component but these solutions takes a lot from the processor capacity. There are other solutions?
P.S: when I connect normally the smart card reader to the computer, I don't have a letter where I can access the card reader.
[URL]
P.S 3: my code is:
Do While rgReaderState(0).lAtrLen > 0 If BackgroundWorker2.CancellationPending Then
Main development XP machine died so I got a new XP machine, installed SQL Server 2005 and VS 2005 Pro, and copied my files.Projects in new VS 2005 work except the Data Sources pane won't refresh and won't show all my data sources for an existing project (from the old machine.)
Error: " An exception occurred while trying to update the data smart tasks, they will be disabled. Key not valid for use in specified state."Update: I cannot even add a new data source to a brand new project. This is VS 2005 from my MSDN subscription.
I have a Digital Signature Cretificate card and card reader, certified by NIC certificate authority.Now I have to implement a login module for a web portal where user will be identified by DSC card.I am very biginner in smart card application field.I have many confution, which are listed below-
1. when i insert card into card reader how can i read data from card using vb.net?
I have got a Dell RT7D60 Keyboard which has a built in Smart-Card Reader. I have developed an application in vb.net and wondering if it is possible to allow users to log on to this application using smart card Authentication.I want to keep the authentication simple like instead of allowing user to enter username and password to open the application, i would want the application to ask for example, "Pls insert your Login-Card" and get the info from the card to authenticate the user.I have no clue for how to begin. Is it too complicated to integrate it in the .net application.
