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!
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
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.
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?
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
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?
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.
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
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?
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?
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?
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).
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.
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?
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'.
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")
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.
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.
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.
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.
