Trying To Scan Images ?
Jan 4, 2010
I am trying to scan images in VB.NET. I searched this site for almost an hour and found questions, but little in the way of answers, but some redirection which did not resolve the issue.
I downloaded the example here [URL] which has 7 projects doing a whole bunch of things. I do not have the scanner attached to my PC. Nor can I run any of these examples which do way more than I am trying to do. Then I went here [URL], found the VB version on planetsourcecode, but it will not run. I tried to duplicate what it does, but I couldn't get either of these line to be recognized:
Imports TwainGui.vb.TwainLib
Imports TwainGUI.vb.GdiPlusLib
I understand that the differences between .NET and VB are huge, but what I fail to understand is why no one has been able to post an example of how to scan? My company is not willing to purchase any 3rd party tools and my boss believes it can be done through the api, which some posts seem to imply but fail to show how.
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Jan 6, 2012
I had a related question running on this in a different thread,but I was told to start a new thread since the original had gotten off the original topic. I am trying to scan multiple pages from an Automatic Document Feeder Scanner and combine them to a singlemulti-page tif file. I am using two different third party libraries to do this.The first library I am using is to scan the documents. It saves the files to the local hard drive as single page tif files. This library returns the file-names as they were saved on the hard drive. This part seems to be working as advertised. The sourcefor this including a video on how to use it is at:
Dim FileNames As Collection
Dim FileArray As New List(Of String)
Dim Mergename as String
[code].....
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Dec 13, 2009
is their a way for me to call my scanner to scan my files inside vb.net?
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Jun 4, 2011
The idea is to scan a folder of images and then let the user navigate back and forth through the images using a couple of buttons.The problem is, I can only get it to return a single image, and not the whole lot. It's looks to me as though the images are getting assigned to the same index in the array. [code]
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Oct 3, 2010
What type of connector do i need to actually save the Map data like point of the images (x,y coordinate) into the database . and then retrieve it to show on the page in asp.net and how do i go about doing it.
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Feb 11, 2009
The app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
[Code]...
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Aug 12, 2010
I was thinking to make an app to save images [or download images] to local hard disk. But to keep it easy, I want this app to create a small picturebox on form to show the thumbnail of downloaded image. Lets say a 5 pictureboxes has to be added with the thumbnails to show the recent downloads. A user can save the location where he wants to save the files on hard disk. A listbox or a dropdown menu will help in categorizing the images, like image1 in friends section, image2 in family section, image3 in others, etc... When the program restarts all the latest 5 thumbnails has to be loaded in pictureboxes and the directory that was chosen. Finally, a button that shows the downloaded images into original image file size one by one or a slide show. Is it possible to make such program?
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Sep 20, 2011
I am developing a visual basic 2008 express edtion program of an organisation that should get images from the system and display on image/picture box. further the program should save the displayed image in access database so that it can be retrieved together when you want to search the information about that particular employee.
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Jan 3, 2012
I need this for my program. There is "add images" button where you can load multiple images and those images should be show on listview after loading.I have been trying to make this but could not get it work.
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Jan 20, 2011
can we use images in the resource folder as background images by setting the background image during run-time by coding?
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Jan 11, 2010
How Do I scan with WIA using VB.NET?
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Mar 6, 2012
I'm looking for a way to scan a certain area of a PDF or Tif,
and extract the OCR regonizied text which will help me rename these documents I have.
What tools or libaries can I use in .NET to make a quick short program to rename
TIF or PDF files into their appropriate name coming from a portion of text that is on each file.
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Jan 31, 2010
i'm trying to "Scan for hardware changes" programatically and all I can find so far is: [URL]
I'm not sure how to use it in a vb.net app though. this is for Windows 7 functionality and i'm not sure how to set up the API calls
there's this: [URL] but it doesn't tell you how to implement it
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Dec 15, 2011
I have a requirement from my vendor to scan an image through my application. Then this image should appear in the picture box given on the same page. Also I want to read it as bit stream.
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Aug 4, 2010
I have a program that will get a hash of the image but the problem is that I have to do to manually.I have a set of images of a folder names images(C:/images/) and ill be choosing which of those images i want to upload to my database.So far I got my program to work with database and such, wat I need is, if its possible I but the folder path on OpenFileDialog and I was a image to show in Picturebox1, then if I press button1 it will go to next picture.
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Mar 7, 2012
is there a way to add a progressbar to the scan button?i watched tons of videos and i cant figure it out
Using FB As New FolderBrowserDialog
If FB.ShowDialog = Windows.Forms.DialogResult.OK Then
For Each Ext As String In ListBox1.Items
[Code].....
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Jul 14, 2009
I want to write code in vb.net to scan drive.
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Dec 17, 2010
I'm using a TcpListener and TcpClient to search for a connection on a certain port,and display a message when a connection is made, but i do not know how to do this. My code so far:
Dim port As Integer = 81
Dim serverSocket As New TcpListener(port)
Dim clientSocket As TcpClient
Dim c As Integer
Dim ic As Integer
[Code]..
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Mar 9, 2009
Using this Pixels Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
This will scan the whole screen for my specified colors. How can I make it scan the AxShockwaveFlash only?
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Nov 23, 2011
I am working on a small music player software that runs from the thumbdrive and does not need to be installed. The problem is that when ever i scan the directory for files, it will not scan unless I am running it on a computer that has previously compiled the code. Regardless of whether visual studio is installed or not. Below is the rountine for the scan that is not working. It seems to stop at the 'ForEach ti in hi.getfiles'.
UserInput.Close()
Dim Found As String = ""
Dim C As String = My.Computer.FileSystem.SpecialDirectories.MyMusic
Dim Directory As String = My.Computer.FileSystem.CurrentDirectory
[code]....
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Nov 29, 2010
I need to add scan option in VB application which i am developing.
How can i, Can anybody giveme detail code for this.
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Jan 3, 2011
My program allows users to upload some files so other users can download it. Is there a way that I can scan the files for virus upon upload/download within the program? How can I go about this?
EDIT: Actually is there a way for the program to use the installed Virus program located on the users computer?
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Aug 10, 2009
Now i'm working in an one softwarec concern.. now my TL gave one new concepy.., ie.., scan the document through our web application only. But i don't have any idea about that scannre.
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Jan 30, 2011
i want to scan my whole C: drive using getdirectory(). but i got access denied when i reach some system file. how can i skip all that file to let my code run well.
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Jan 23, 2012
I have this idea in my mind, that I can activate a window, and then scan that window for a pixel at certain coordinates.
Is it possible to do this in vb.net?
Something like:
If.GetPixel(X,Y,COLOR,) = True Then
MsgBox (Pixel Found)
Else
Loop Until Error = False
I know that won't work, but that's my idea.
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Jun 11, 2012
how I can scan a image I loaded in my picture box for a certain pixel (say red)
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Oct 30, 2009
I have been developing an antivirus using vb.net. The virus scanner works fine but I was thinking of ways to optimize the scanning speed (because large files take forever)
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Apr 24, 2012
Can I build software to scan document or photo without EZTwain library on VB.NET ? because Twain library make scan in another window also I can't put multiple choice for the input format...
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Aug 15, 2009
imagine i have an image of an whole family, but then i crop just one face, to use, now i have the photo of the whole family, and the photo of a face, which is part of the big photo. what i want is an app that can scan the big image, looking for the small image, and then return if it found it, and the rectangle where the small pictures, fits, in the big picture. any ideas?
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Mar 19, 2009
Basically, I want to be able to say: here, I want to be able to chose my drive (in this case C:) and i want to be able to get the following extentions: .txt. Also i want it to list ALL .txt files in the C drive in either a textbox or listbox.
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