VS 2008 - Random Image Displayer (BMP And JPEG File Types)
Sep 20, 2009
I want to create a sort of slide show program. I want to get a folder full of images (bmp and jpeg file types) and have this program display it really quickly and then refresh to show another randome image really quickly. Then I want it to look into another folder and grab an image file from there that will be the last image and stays up. What I want to know is how will i go about getting the program to get the random image and then how will I get it to refresh instantly?
I need to get a jpeg image from file system, feed it to DrawImage method for resizing and then save the result to a varbinary(MAX) field in a SQL Server table. How can I do the conversion from file system to image (from DrawImage method) to the varbinary(MAX)
I'm reading a folder to assess the width x height of jpeg's, to classify them in various ways. Opening each as a bitmap and reading the bitmap width and height works but of course is laborious and very slow .... I've read various JPEG file format papers but retrieving the image pixel width and height seems none too obvious. Is there a logical way in VB to get this info quickly? My jpeg's are bog-standard ones made using VB's "Bmap.Save(Fname, ImageFormat.Jpeg)".
The images on my e-commerce website are watermarked with an aspx script, therefore when you are browsing products, if you want to save the image it saves it as aspx rather than jpg or png. The thing is I need to give urls of jpg for a website that advertises products. There are more than 10,000 products so I can't save all of them manually, so I made a page with jquery that get's the image part of the product display page. What this page returns is this:
And the output is only an image. How can I return this image not as an aspx page but as a jpg or png? Since there's a script for watermarking the image and making it aspx, shouldn't there be a reverse function?
Alright, say I've made an animation in photoshop and exported it as a JPEG. I want to know if it's possible to change which frame of the animation the image will show. An example is if I made an image with 10 layers, and I want the 5th layer to show in a picturebox, how can I achieve this?
I have created a form in Visual Basic with two buttons, a PictureBox and a TextBox. I made the first button to load an image from my hard disk and show it in the PictureBox.What i want to do now is to make the second button to convert this image to binary and show the string in the TextBoxHere's the code for the first button:
I Need to Store bunch of Jpeg files from local file system to a column with image datatype in databse.Can any one please provide me some code to do it?
how to save a jpeg image to the database. I am using fileopendialog to upload the image to the picturebox. This works fine but I now need to save this image back to the database. I am using an Oracle database (11g) and the image datatype is declared as a blob.
I have created a form that enables the user to add details about a bicycle, the functionality of it is fine. I have thought about allowing the user to write a jpeg image that relates to the ike being added and then at a later date when they want to search for this bike the image is also read to the same form as the details of the bike on the search form.[URL]..
What am i doing wrong on this code? im trying to get my form into a jpeg picture, but everytime it only saves a black screen of what im doing
Code: Private Shared Function BitBlt(ByVal hdcDest As IntPtr, ByVal nXDest As Integer, _ ByVal nYDest As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer, _ ByVal hdcSrc As IntPtr, ByVal nXSrc As Integer, ByVal nYSrc As Integer, ByVal _
I have a routine that creates a report which includes text and graphics. When I print to a PDF or printer the output looks great. When I draw the report on an image to save as a PNG, GIF, JPEG, etc. it does not look as good and I understand that is related to the 96 dpi native resolution. However, I made some modifications, and even though the graphics part of the image looks better, the text does not look as good as the PDF. I am creating the image using 300 dpi and text rendering is set at the highest quality.
I've made an image viewer which opens a random image from a specified folder, but the random number is not that random at all... I've already used Randomize(), but without result.
So i am converting a metafile (EMF to be exact) to a jpeg or gif (doesn't matter as long as it's compatible with browsers) and when I do the conversion, all of the transparent pixels turn black. I have no idea how to do this in GDI+ but here is the method I am using to save the file:
Dim Img As System.Drawing.Imaging.Metafile = New System.Drawing.Imaging.Metafile(stream) Img.Save(Server.MapPath("/FileName.gif"), System.Drawing.Imaging.ImageFormat.Gif)
I am trying to assign a button to let a resource ( JPEG image ) become the background of my form. But instead, the background becomes blank. Here is what I wrote:
Public Class Choose_Background Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Me.BackgroundImage = My_Project.My.Resources.african_lion
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)
I'd like to make a program that allows me to see what the current volume of my computer is. It would be nice if I could also hire and lower the volume with my program.
I am trying out the windows media player control within the VB design view, and I tried to add an .avi file to it. When played however it does not show the video, and plays the sound with the visualiser effects instead.
it's possible with vb.net code to show or hide extensions for known file types ? this is a folder option for the new windows 7, wich allow the user to show or hide extensions for files.
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
I have managed to learn a little of VB 2008 but I'm still struggling. I managed to convert one VB6 program to VB .net but all the file IO in it is sequential access.I'm trying to convert a VB6 program to .net. This program uses almost entirely random file IO.In one of the books I have, I found an example which, with a minor mod worked. I tried using that code to modify my program and it does not work. In my code, the FileGet results in the obj containing null strings. Yet in the sample program using the same structure, the obj contains actual data.The file is being opened because the record count is calculated correctly [iUpper = LOF(F_Trk) / TrkLen].
I used a Type in VB6 which I converted to a Structure in VB 2008. The function in which the problem occurs is below as well as the Structure declaration and the Function it calls (PAB) which is a derivation of the PathAddBackslash API call.Is there an easier, more efficient way to achieve the same results in VB .NET?[code].....[code]......
