Way To Capture Screen Image And Then Read Data (OCR?) From Image

Feb 13, 2010

I 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.

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VS 2008 - Screen Capture (Cropped Image)

Aug 31, 2010

I'm trying to save a screen-shot from a FlowLayoutPanel without the desired success. Here's the code I'm using to same the panel as image:

vb.net
Dim bmpScreenshot As Bitmap = New Bitmap(FlowLayoutPanel1.DisplayRectangle.Width, FlowLayoutPanel1.DisplayRectangle.Height, PixelFormat.Format32bppArgb)
Dim gfxScreenshot As Graphics = Graphics.FromImage(bmpScreenshot)
gfxScreenshot.CopyFromScreen(Me.PointToScreen(SplitContainer1.Location), New Point(0, 0), FlowLayoutPanel1.Size, CopyPixelOperation.SourceCopy)
bmpScreenshot.Save("C:FlowLayoutPanel1.Emf", ImageFormat.Emf)

Problem is, when the panel is full of controls and using scrollbars the hidden controls are not captured, since I'm using the CopyFromScreen().

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Compress Or Resize Bmp/jpeg Image Immediately After Screen Capture?

May 21, 2011

This is my code to get screen captures every certain interval of time. But each image is being around 150kb and I want to make it smaller. what matters is the image size in kb to be around 70kb ( almost the half ) .

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim ScreenSize As Size = New Size(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
Dim screenGrab As New Bitmap(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)

[code]....

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Web Page Snapshots - Capture An Image For Each Of The Selected URL's In The Data Grid View?

Sep 5, 2011

I 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 possbile? If so what is the best way to go about it?

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VS 2008 - Read A 16bit Binary File (tif Image) And Pixel Values Of The Image Ranges From 1200 To 4500 - EndOfStreamException Unhandled Error

Mar 18, 2012

I am trying to read a 16bit binary file (tif image) and pixel values of the image ranges from 1200 to 4500. I tried to use BinaryReader using ReadUInt16 but I get EndOfStreamException Unhandled error. ReadByte method works fine with an 8bit tif file. I do not know how to read a 16bit image file using binaryReader. Shouldn't I use ReadUInt16 since values of pixels range from 1200 to 4500?

[Code]....

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Read Image Data From Sql Database?

Jul 1, 2012

I have data that was stored in a sql 2008 table in image format. I want read the data from sql with VB.net 2005 and put it into a character array or a byte array where I can access the data within the code. I can not use file stream to read the data because I have no ability to read files from a directory.

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Android - C#.Net Fails To Read Some EXIF Data From JPG Image

Apr 25, 2012

I have written simple module in C#.Net which reads image property (i.e EXIF Data) and to do the same i have used below code:

[Code]....

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VS 2008 - VB BITBLT Equivlant - Build Image By Opening Files With Image Data

Nov 2, 2010

In VB6 you could BITBLT things around before refreshing the screen. In .NET, I'm aware of DrawImage, but that can only be done on a paint event rather than before anything gets painted. The issue I have is, I need to open several files with image data in them and then build a bigger image with those smaller images. Before I could open them, BITBLT them to a Buffer. As far as I can tell .NET offers no way to do this as the only function I've been able to find (DrawImage) only works within the paint event. Is there still a way to do this in VS08 or no?

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Capture Image With Web Cam?

Nov 15, 2011

i 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 ?

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Capture Form To Image?

Jul 13, 2009

direction 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.

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Capture Image From Wabcam?

Jan 13, 2010

i am doing the project on visitor management. i want all code for capture the image from webcam. or steps for that.

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Capture Image From Webcam?

Jun 21, 2010

How to use GDTwain control in VB.net

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How To Capture Image From Webcam

May 1, 2012

I 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.

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AviCap Image Capture Without Preview?

Jan 2, 2011

I'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.

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Capture Excel Spreadsheet To Image?

Mar 27, 2009

I'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.

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Capture Image For Each Of Selected URL In DataGridView

Aug 15, 2011

I 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?

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Capture Image From Video Camera?

Sep 8, 2011

I'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]....

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Capture Image From Video File?

Dec 15, 2011

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)

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Capture Image Of Hidden Process?

Jul 27, 2011

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.

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Capture Image Of Webbrowser Control?

Sep 15, 2011

I 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

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Capture The Invoice Number Of An Image?

Jul 13, 2010

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+.

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Code For Capture The Image From The Webcam?

Sep 24, 2010

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]....

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Using Directshow To Capture Image From Webcam?

Jun 16, 2011

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

[code]....

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VS 2008 Capture Image Using Webcam?

Jun 21, 2010

I'm developing an application and it needs a facility to take photo of the customer using the webcam.

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VS 2010 Webcam Image Capture

Nov 20, 2011

webcam drivers were installed using its cd drivers.[code]after skipping the errors in compile (f5) the program works, how to cancel the errors? moreover, when the program is run via the .exe file in the bin folder no errors fire up

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Webcam Image Capture Using Avicap.dll

May 20, 2009

I'm trying to capture an image from my webcam and save it as a .bmp file. the code i have works perfectly except for 1 issue i cant figure out no matter what I try the issue is that when i save the bitmap it only saves in 320x240 resolution even though I have set the resolution to 640x480 everywhere I could think of.

here is the (edited) code I currently have. some places I didn't know what to change so I put in 640,480 anyways to see what happened but that didnt make any difference and also didnt cause any errors so i left the changes there.

Const WM_CAP As Short = &H400S
Const WM_CAP_DRIVER_CONNECT As Integer = WM_CAP + 10
Const WM_CAP_DRIVER_DISCONNECT As Integer = WM_CAP + 11
Const WM_CAP_EDIT_COPY As Integer = WM_CAP + 30

[Code]......

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Webcam Image Capture Work?

Aug 16, 2009

picturebox1.image = system.image.drawing.fromfile(x) x is the location where the webcam store the current image.if the code above would work what is x ?

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VS 2008 Finding If An Image Control Has An Image Loaded (flashing An Image With A Timer)?

Aug 14, 2011

I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?

If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else

[code].....

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.net - Convert Raw-Image-Data Into Image File (*.jpg)?

Apr 28, 2010

The coding below is to retrieve the Raw Image Data from the Database and then write as a JPG image file. The problem is the image file (image.jpg) is "nothing" after file created. I guess there is something wrong in the following coding.

fs.Write(rawData, 0, fileSize)

No any runtime errors I can find, and I double check rawData (i.e. Buffer) contains data. But don't know why there is "nothing" inside the image (image.jpg).

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim fileSize As Integer
Dim rawData() As Byte

[code]....

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Capture An Image With A Webcam And Save It In A Picturebox?

Aug 13, 2009

how do i capture an image with a webcam and save it in a picturebox?

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