Convert "e.data.GetData(dataformats.Dib)" To An Image?
Sep 26, 2005
I am designing an application that uses drag/drop. I am able to drop image file into my app (as e.data.getdata(dataformats.filedrop)) but when it comes to draging/droping from a imaging app (i.e. Corel Designer) I can't figure out how to convert e.data.getData(DataFormats.Dib) to an image.
e.data.GetData(DataFormats.Dib) being a "System.IO.MemoryStream" It shouild be easy to do so: dim img as image = image.fromstream(e.data.getdata(dataformats.dib)) but I get a Invaklid parameter used error... ANYONE CAN HELP ME? I tried it all, yahoo, google, msdn, forums, newsgroup, and I just can't find it anywhere!
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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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May 25, 2009
I have the following code found on internet:
Const WM_CAP_START = &H400S
Const WM_CAP_EDIT_COPY = WM_CAP_START + 30
'The first step is to recognize that the video captured by the web cam can be saved as individual images. By displaying a series of continuous images on the client, it is similar to watching a video stream. To capture an image, I have defined the following subroutine:
'---save the video data into the Image global variable---
Public Sub CaptureImage()
Dim data As IDataObject
Dim bmap As Image
Dim ms As New IO.MemoryStream()
'---copy the image to the clipboard---
[Code] .....
The problem is the code fail to retrieve the image from clipboard? What I'm trying to do is connect to a webcam, then save the video stream file on this webcam as bitmap file before transfer to the client side as an array of bytes.
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Mar 24, 2010
Im making a programing that uses TCP.How can i senddata/getdata in vb.net? [code]
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Jun 25, 2009
I have some problem receiving data with GetData after using post method. GetData returns nothing.
Here is the code I use:
Dim retData As String
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
[code].....
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Sep 9, 2011
I Turn From vb6 To Dot Net so i have 1 question Where is Data Arival in Sockets ??
it get what And How i Can Make Socket Post GetData in textbox1 ? :O
And From Where i Can Mange My App In Where The App Will apper in Screen ?
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Jun 28, 2011
i've entered image path from vb.net to oledb but can't convert it as an image to thedatagridview column.
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Sep 6, 2009
How do you convert a System.Drawing.Bitmap image to any other type of image? I tried CType, which failed, since I do not know the type for .png or .jpg. I cannot find it anywhere on google either.What is the most efficient method to do this, which keeps the quality of the image as high as possible?
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May 23, 2012
I have a black & white image (find below)I want to print that image by clearing the background(i.e black dots in the form of rectagle)If i print the below bank check it is printing completly black (unable to read the content). Pls do the needful. Many Thanks
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Mar 25, 2011
An in-line table valued function in SSMS takes about 6 seconds to return 11088 records. The same function in VB .Net 4.0 using TableAdapters.InputTableAdapter.GetData (Created with data set designer) takes about 15 minutes complete.Both are executed from the same workstation.Why does this discrepancy exist?
Workstation:
Windows XP SP3, 2GB
VS2010 Ultimate
.Net 4.0 Framework
Server:
SQL Server 2008
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Jan 26, 2009
I fill a datagridview from a database we can call it "GetData". The first column's name is Serial_nr. Here I'll see all active Serials. Then I ask "Get All Data" Here's plenty of serial numbers in the first column,but I only want the active serialnr, the other rows should be deleted in the datagridview.
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Feb 16, 2011
The following is the code i m using to convert doc file to image.this works well for a file that contains only one page but if there are more than one page in doc file then it converts only first page of file to image.Can some one suggest me how to convert all pages of doc file to seperate images.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim objWord As New Microsoft.Office.Interop.Word.Application
[code].....
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Feb 9, 2010
Is there any way to convert image(jpg) files to pdf in VB .net ???
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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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Jul 11, 2009
I'm working on a blackjack card game but i can't convert the resulting string into an image.
Imports BlackJackLib.Class1
Public Class Form1
Dim oBlackJackLib As New BlackJackLib.Class1
[Code]....
Also is there an easier way to check for a card that is dealt twice?
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Feb 14, 2012
how to convert an image into an icon? Is that possible with any image type? I read about image editor which also helps. Where does one get or download this?
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Dec 14, 2009
i have table that has column of type "Image" in my DB. in BLL datarow[5] will fetch Image in that column. according to intellissense this returns an object. In my BLL i've assigned this to class member image of type object. then i return an object of the class .
In my front end i have a DataGridView control i'v asigned the return object from the BLL to DataGridView control. In the Image column it display as System,.Byte[ ]... how can i make the DataGridView control display this image?
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Jan 8, 2011
I need to convert any file (word, excel, pdf...) to an image (jpg/tiff..).Because I intend to preview the content of the first page of the file/document in a small frame (small window).
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Feb 10, 2009
How can we convert any image to any other format e.g BMP to Jpg or emf.I am able to convert only bmp to some of these format by using this code which i found.
[Codie].....
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May 1, 2009
This code resizes a jpeg image, but instead of saving it I simply want to display the result in a picturebox. I moused over the the image box and the value thumb and they seem to be different formats. How can i convert bitmap to image?
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Sep 17, 2009
product.ImageMimeType = image.ContentType;
product.ImageData = new byte[image.ContentLength];
image.InputStream.Read(product.ImageData, 0, image.ContentLength);
I got the following error when converting to VB.
Function Index(ByVal product As Product, ByVal image As HttpPostedFileBase) As ActionResult
'Value of type 'String' cannot be converted to 'System.Data.Linq.Binary'.
[Code]......
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Jan 29, 2010
I have created in Visual Studio 2008 a Form with two buttons, a PictureBox and a TextBox. I've made the first button to load an image from my hard disk and I want to make the second button to convert the image into binary code and show the string in the TextBox. Image format is Jpeg. Here's the code for the first button:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click PictureBox1.Image = Image.FromFile("D:\Pa.Pei\Pa.Pei. - Ergasies\4o Έτος\Ανάλυση Εικόνας\011.jpg")
[Code]...
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Nov 13, 2009
Im trying to convert an image that i have downloaded to an Icon, how can I do this?
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Aug 28, 2011
I need to convert image to string (a simple picture, only numbers) like the following picture:
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Apr 3, 2012
I want to convert an image to a string, then put it into 1 cell in a datagridview as a string. I've read around on the forums and I saw some people say to use StreamReader, others say BinaryReader. Well Imma try both and see how it comes out. But I'm kinda stump. I'm trying StreamReader first, and I don't know how I should even do this. This is what I've got:
Dim ofd As OpenFileDialog = OpenFileDialog1
ofd.FileName = ""
ofd.Multiselect = False
[Code]....
In my do loop, should I put it into a temp text file and then read that textfile into the datagridview? If I did that, I think it would take up some time.
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May 22, 2009
I'm studying for a memorization-intensive exam, and have lots and lots of lists to memorize. I have a Sony Walkman that can show *.JPG files and I had an idea. I want to create some video flashcards so I can study anywhere/any time. The idea is simple: I have some text that I want to convert to an image file. No, this isn't homework for a class. My experience to date has been 100% Excel/Access/Word related, so I'm completely out of my realm when it comes to images.
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Dec 7, 2010
I want to convert PDF to image, PNG or JPG or TIFF format
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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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May 15, 2012
I have a DIV container which has some text, background-image, image. I need to convert that whole DIV contents into image and save.
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Sep 17, 2010
I have found that an image can be stored as some string. To give an example I have included a ms word part that has an image.I saved a word file with image and saved it as xml format .when i opened the xml file in a notepad i got following section. It must be the image being stored as some stream of text. Is there a similar way to do it in .net.
[Code]....
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