We 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 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 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 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 RepliesAm 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 Replieshow 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 Repliescan i get images from the scanner(s) with out using TWAIN library
View 1 RepliesI am creating a program and one of its functions is that it will go to a website and click on an image. I would normally use the invoke command but since it is an image I need to click I need to go this way. I am not sure how I could go about doing this. I believe I would need to take a screenshot then scan for a bmp image I have saved of the button. Then some how send a mouse click to that image without moving the mouse. Here is what I have so far, all it is is a function to take a screenshot.
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How I can use scanner to scan an image and put it in PictureBox using VB.NET
View 4 RepliesI play a game and in the game you acquire skills which you can display on the screen in a box very similar to a data grid. The grid has 3 columns and X number of rows.Column 1 is the name of the skill, column 2 has a descriptive term like "Beginner" and column has the number of points you have acquired in that skill. So it would look something like this:[code]Remember that it is in a data grid so it has cells like an Excel spreed sheet.The program that I use is able to parse the skill name and the points and save that information outside the game to a n area in the program.My question is, is this possible to do something similar in VB? That is something like, Press a hot key, with will get a screen shot, parse the data and save to a data grid in my VB program.
View 2 RepliesIs there a fairly easy way to scan a document with VB Express 2010 either by Twain or WIA? If there is what would the proper reference be?
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Edited: I came up with the idea to use One Note 2010 programmically since it has built in scanner support. Now if I can just get that Insert-> Scanner Printout to work
When i scan a image from my scanner it's scan properly if the file exist with same name programme show error it's any way to replace this name and save the properly.
View 11 Replieshow to display any image (by code)that scan it from twin scanner in picture box?
View 3 Repliesi want a code for capturing snap through webcam i have a form where i placed a button, what i want is when i click that button it capture a snap and save it in c: drive ?
View 1 Repliesdirection to some methods that can capture the contents of a form so that it can be saved as an image. The catch is, the form may not always be displayed on the screen, so BitBlt doesn't work for this particular scenario.
View 8 Repliesi am doing the project on visitor management. i want all code for capture the image from webcam. or steps for that.
View 1 RepliesHow to use GDTwain control in VB.net
View 1 RepliesI need to show video in a picturebox, and when a button is pressed, capture the frame. I am making a desktop qr reader. I have the qr reader completed and working. my issue is my camera now. I would prefer something that actually works, and doesn't have severe memory leak issues, and doesn't throw an exception after it's first or second use. Would AviCap32 or Direct Show be better for what I want? Which would capture the image fastest, without causing exceptions? I tried using an open source solution called webcam_capture.dll, and it worked at first, but now I am getting an exception that I dont know how to fix. I'm assuming this goes in vbGeneral, and not the Interop and Upgrade. Most examples I have seen, use interop, so I wasn't sure. I would prefer not to use WIA. I have attempted it, and it doesn't work quite right on my computer, and this application will be distributed.
View 12 RepliesI'm attempting to grab an image from a webcam without having to connect a driver to a window. I'm predominately using code from a devx tutorial. On page two of the tutorial, it shows how to grab a frame using WM_CAP_EDIT_COPY. The only problem is, I don't want a preview window. I want to simply grab the image without having to associate a window handle to a PictureBox for previewing.
View 6 RepliesI'm thinking about how best to accomplish the following and wanted to see what others suggest.I'd like to capture an Excelworksheetnd save the area that has been edited (vs. the area thatremains blank)s a PNG image. This would ideally be achieved through an Excel add-in.
View 1 RepliesI have written an application which extracts a list of URL's (currently in Internet Explorer cache) from an XML file and displays them in a data grid view. From here I would like to launch Internet Explorer in a hidden mode and capture an image for each of the selected URL's in the data grid view. Is this possible?
View 2 RepliesI've been trying to find a way to use my video camera as a webcam and do chatting from different programs including mine.
my problem is how can i capture an image from my video camera. below are camera stats[code]....
I have written a code from which using a web camera one can record a video and save it onto the HDD but now according to a client requirement he needs to play that video and capture still images from the video and save it onto a picture box's and here is where i am having issues.
1)when i use windows media player to play the recorded video i don how to capture the image from the video by triggering an event
2) also i need to know if i can play the video on picturebox tool(i tried using the winmm.lib and Mci but it din work out for me)
Been throwing around concepts lately at attempting this but haven't been able to come up with anything that actually works. The concept: Capture an image of a process that is hidden.
View 8 RepliesI want to capture the image of my webbrowser, or actually just a part of it.I already achieved it, but it just takes a screenshot of it instead of capturing the bitmap itself. So when i use this technique and you drag another window above it, the window is also captured. (this is what I don't want.)
My code:
' 1. Get the WebBrowsers bitmap.
Dim bmp As New Bitmap(WebBrowser1.Width, WebBrowser1.Height)
Dim BMPEndResult As Bitmap
Dim graph As Graphics = Graphics.FromImage(bmp)
[code]....
So I need to get the image of the webbrowser:
- without the scrollbars if possible
- Even if the window is minimized or in the task bar
- Full webbrowser
- and also if possible just a part of it, where I can specify the top, left, width and height
The issue is how do I best capture the invoice number of an tiff image?
I have a VB application in visual studio 2005 that scans invoices, creates .tiff's utilizing a standard image scanner.
I've tried the following...I thought I could save the image to text in an array and find the 6 digit number. Then, I tried to save the image to xml trying the same principal but I get a general error A generic error occurred in GDI+.
i'm currently doing an assignment which is based on vb.net and sql server. here i wanna capture an image and i wanna save that into a sql table named 'customer'. i have downloaded the code for capture the image from the webcam and sWhen i click the save button in that app, its showing to save the captured image in a
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim data As IDataObject
[code]....
using directshow to capture image from webcam. In my winform application, there was a tabcontrol which contains two tabpages. Tabpage1 contains a picturebox which shows the video from webcam, tabpage2 contains a button to capture the image. My problem is when I pressed the button on tabpage2, my saved image file is empty which has no picture inside.
The following is my code for GetImage:
Public Sub GetImage(ByRef bmp As Image, ByRef pbCtrl As PictureBox)
' Get image from clipboard and convert it to a bitmap
Try
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I'm developing an application and it needs a facility to take photo of the customer using the webcam.
View 6 Replies
