Load An Array Of Images Into Memory?
Feb 6, 2010I'm newb in the .NET framework so how could I go about loading an array of images into memory?[code]...
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Memory Leak - After About 6000 Of 1,250,000 Images In ##X It Throws An "out Of Memory" Error
Feb 9, 2011This code was put together for a one time run. It's purpose is to count all the pages in a group of images. After about 6000 of 1,250,000 images in ##X it throws an "out of memory" error. Besides it being thrown together for a one time run does anybody see anything obvious that could be causing the error?
CODE:
VS 2008 'add Images' Button Where To Load Multiple Images
Jan 3, 2012I need this for my program. There is "add images" button where you can load multiple images and those images should be show on listview after loading.I have been trying to make this but could not get it work.
View 6 RepliesPdf - Printing Images Using A Lot Of Memory?
Jun 18, 2012I'm working with PDFs in VB.NET using a DLL I found on code project:
[URL]
My app allows you to select multiple files in a grid and print them. The files are stored in password-protected zip files, so the first step I do is extract each selected file to a memory stream that I pass to a new PDF wrapper object. Each object gets added to a queue. Then, each object in the queue is printed, page by page, as a system.drawing.image. The whole thing runs on a background worker.
Now, extracting the PDFs to the queue uses hardly any memory. But in the PrintPage event handler, when I extract the images and send them to the printer, something must be going wrong. My memory usage explodes. Each image, of course, is large because it's rendered at 300 dpi, but the memory used by each page isn't being returned to the OS and neither is it being garbage collected. In the end, if I select enough files, I run out of memory. Why?
Out Of Memory Exception While Loading Images?
Jan 31, 2011I am using the following piece of code to load images as thumbnails to a FlowLayoutPanel control. Unfortunately i get an OutOfMemory exception.As you already guess the memory leak is found at line
Pedit.Image = System.Drawing.Image.FromStream(fs)
So how could i optimize the following code?
Private Sub LoadImagesCommon(ByVal FlowPanel As FlowLayoutPanel, ByVal fi As FileInfo)
Pedit = New DevExpress.XtraEditors.PictureEdit
Pedit.Width = txtIconsWidth.EditValue
[code]....
Update: The problem occurs while loading a number of images (3264x2448px at 300dpi - each image is about 3Mb's)
Load Xml File In To Memory?
Apr 16, 2009I want to load an xml file into my program then extract data from it into text boxes. For loading purpose I would like to be able to have something that looks like the open file dialog. So that I can select different xml file each time load it into my program have it take the layout i created. I would like be able to alter any text then save the alteration and print it out. I am using visaul studio express edition visual basic 2008.
View 2 Replies.net - Load A File Into Memory Stream?
Jun 2, 2011I have a filename(including it's path) in a string. Now i want to load this .csv file into memory stream. ex: Dim filename as string="C:UsersDesktopabc.csv"
View 2 RepliesLoad Everything In Memory Upon Application Start?
Oct 9, 2009I'm using VB.Net, and I have a set of data which I have to able to filter through fairly quickly.Basically, the program is like google sugest, but instead of a drop-down menu, I'm using a listbox. When a user enters a word, I compare the word using LINQ and filter those that contain the user's input. The data are all strings of variable length (from 0 to 200 characters, most on 150 character mark), and I have 240,000+ of this strings and counting- all stored in an XML file.
A colleague of mine told me that loading all of that to memory (using VB.Net's XML serializer plus collections of string/objects) is not practical, and would slow the 'startup' time of the program. I haven't finished building the program yet and I'm having second thoughts about continuing this path.
So, my question is: Should I continue with my current approach on the problem (which is load everything to memory on startup), or is there a better way of solving my dilemma?
How To Load Different Images
Oct 20, 2009I have a Windows Application that is going to be used by 2 users. What I would like to is to be
able to display different "branding" or images throughout the application based on which customer I
deploy my app to.
Load A File From Folder To Memory Stream Buffer?
Jun 1, 2011I am working on vb.net win form. My task is display the file names from a folder onto gridview control. when user clicks process button in my UI, all the file names present in gridview, the corresponding file has to be loaded onto memory stream buffer one after another and append the titles to the content of the file and save it in hard drive with _ed as a suffix to the file name.I am very basic programmer. I have done the following attempt and succeeded in displaying filenames onto gridview. But no idea of later part.
'Displaying files from a folder onto a gridview
Dim inqueuePath As String = "C:UsersDesktopINQUEUE"
Dim fileInfo() As String
[code]......
How To Load Images Faster
Jun 22, 2010I am loading images from the internet. I am using PictureBox1.imageLocation() but it takes a while to load the image. Is there a way i can load the images faster? it shows an error icon before it displays a picture...how can i get rid of that?
View 6 RepliesLoad Images From HDD And Saving Them Somewhere Else On HDD?
Nov 12, 2011I want to load pictures from my Hard-disk and then I save them somewhere else on my HDD by a button.
View 2 RepliesLoad Web Images In Listbox?
Nov 19, 2009I'm having trouble loading images in a listbox. Is this possible? I don't want the listview. I only need the images, not the images as icons for something else. Also these are image from urls.
View 2 RepliesVS 2008 Load Images In Dir?
Jan 21, 2010want to put an image strip on my form that will load all the images in the image directory automatically.now button..and can it scroll?meaning i dont want the form to bbe to w
View 3 RepliesInterface And Graphics :: Load Image And Access Its Memory Buffer
Mar 31, 2011I have some questions about bitmaps and such. I am using the IDXSurfaceFactory::LoadImage Method to load an image and now I want to access its memory buffer, so I can do some direct memory manipulation and copy the content to another buffer afterwards (no BitBlit!). I managed to successfully use LoadImage, but I have no idea how to retrieve the pointer to the memory buffer and other informations. I want to basically know everything about, how and where the image is stored in the memory buffer.
Does windows always load images as BGR regardless of its original format? if not, how can I find out if the loaded image is stored as BGR or RGB. How can I find out how many bits each color has? How can I find out if the image is stored y-reversed? And if you load an indexed png for example, with one color marked as transparent, how can I find out which color is used for transparency?
Load All Images From A Directory To A FlowLayoutPanel?
Oct 3, 2011I am attempting to load all images from a directory to a FlowLayoutPanel. I am using the GetFiles() method to retrieve the files with a filter to just retrieve JPG files. When I run the program, it returns 'Conversion from string "*.jpg" to type 'Integer' is not valid.' exception. The offending line of code is:
For Each foundFile As String In My.Computer.FileSystem.GetFiles(FolderBrowserDialog1.SelectedPath, "*.jpg")
Load Game Images Without A Picturebox?
May 31, 2010How do I load game images without a picturebox? (like in a game)I need them to be movible with the arrow keys. I am using a windows form, in VB 2008 express.
View 7 RepliesLoad Images Using A Text File?
Oct 23, 2009I have a very urgent project due for Monday and I am trying to implement a very simple Windows Application for viewing files.
One of the requirements is to store the history of images accessed and provide a navigation tool for those images logged into the history.
I have been successful in logging/saving the full system absolute path to a text file. Now it is to be able to navigate through the lines.
I figured I could do this by first counting up the amount of lines in the text file after a new image has been loaded to the display and added to the text file[history] and
Then using the count on the history file of total files to either decrease or increase the number as appropriate to load into the image file the previously written absolute file paths as the new images.
I am writing in Visual Basic using VB 2008 express edition and I can't seem to figure out how to count the lines in the text file and sub sequentially manipulate the line being read to display the image.
Load The Adobe Photoshop Images?
Oct 11, 2011how can i load the adobe photoshop images
picture1.picture = loadpicture ("c:image1.PDD")
image1.picture = loadpicture ("c:image1.PDD")
picture1.picture = loadpicture ("c:image1.PDD")
i also use the extension PDF or Adobe photoshop .
Load The Images From The Imageres.dll In Windows?
Oct 15, 2011i want to need load the images from the imageres.dll in windows.in vb.net 2008
View 2 RepliesLoad Images From Imagelist To Picturebox Randomly In
Jun 18, 2011i have 6 images in a listbox, and i want to show the pictures in a picturebox randomly...i'm using the following code:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
Randomly Pick Images To Load Into Picturebox
Nov 16, 2009I'm working on creating a very simple dice game for class (not for gambling purposes). The users has already entered their total amount of money, and are are able to wager for every round. We were supplied with 6 different picture files to represent the 6 sides of the dice. It will be located in the C:\Temp folder, and after the user clicks a play button, the form (frmDice) will appear, which has two pictureboxes(pbDice1 & pbDice2) located on it.
[Code]...
Single Picture Box To Load Multiple Images?
Mar 22, 2011load images into a picture box. Firstly, is it possible to use a set of randomly generated numbers to display a random picture from a selection into one picture box?
i.e. Dim RandNumber As Integer
Dim RandClass As New Random
RandNumber = RandClass.next(1, 10)
[code].....
VS 2008 : Pre-load Images From Web To Display In Form?
Nov 20, 2010I want to pre-load a number of images from the web, so that I can display them in a form, and scroll through them without delay. It can be a large number, but i only need to pre-load perhaps 20, and then remove/add in advance, as I scroll through. The images will typically be .GIF or .PNG, of quite small size, <50kb. The link for any single image will look something like this: [URL]..and I will keep a list of all the links I need to access.
What "type" shall I use to store these images? And how do I make web requests to put the data into this type? I guess it will be more convenient to keep this as in-code list of some memorystream type (?) instead of saving them to disk and having to deal with file names and stuff..? Also, what type of control shall I use to display such images? Do I use a PictureBox?And if a memorystream is indeed the best choice, how do I make this show in the picturebox?
VS 2008 Pre-load Images From Web, To Display In Form?
Apr 21, 2010I want to pre-load a number of images from the web, so that I can display them in a form, and scroll through them without delay. It can be a large number, but i only need to pre-load perhaps 20, and then remove/add in advance, as I scroll through. The images will typically be .GIF or .PNG, of quite small size, <50kb.
What "type" shall I use to store these images? And how do I make web requests to put the data into this type?I guess it will be more convenient to keep this as in-code list of some memorystream type (?) instead of saving them to disk and having to deal with file names and stuff..? Also, what type of control shall I use to display such images?And if a memorystream is indeed the best choice, how do I make this show in the picturebox?
Loads Up 4 Images If Usb Stick Is Checked And A Different 4 If Memory Card Is Checked?
Feb 20, 2010project im working on for my course,the idea is a photo printing machine that loads up 4 images if usb stick is checked and a different 4 if memory card is checked. and then whatever image is selected appears in the big picturebox on the left [URL] i have 2 print size options set as radiobuttons, radiobutton 1 = 6x4, which costs 25cent per photo, radiobutton 2 = 8x10, and is 50cent per photo.i also have a textbox which will display the number of copies to be printed So here's my dilemma, when the print button is selected alongside one of the radiobuttons i want it to display a message saying something like this "you have selected (whatever the amount of copies)of this photo sized 6x4, or 8x10 depending on which radiobutton is selected, and i want it to display the total cost which is the number of copies multiplied by the rate for the print size selected, then an option saying "Do you wish to proceed" Yes or No.
I did something similar to this in class earlier in the year but cant remember it, it was an airline booking program with 3 types of payment cash, visa or mastercard,upon booking a message popped up saying there is a certain percentage discount for using visa or mastercard
Load Images And RTFs Into RichTextBox And Picture Box At Runtime Using Menus?
Jun 19, 2010I am not a total newbie to Visual Basic. However, the last time I used it was back in the days of DOS and Windows 3.11. Now I am using VS10 on a Windows Vista machine and it so different, I feel like a total newbie.
I am working on a project that I wish to load RTF files into a RichTextBox and an accompanying image into a PictureBox at runtime. I want this to happen when the user clicks a Menu Choice.[code]....
Copy Bytes In Memory To An Array?
Nov 12, 2009unfortunately I cannot resort to C# in my current project, so I'll have to solve this without the unsafe keyword.I've got a bitmap, and I need to access the pixels and channel values directly. I'd like to go beyond Marshal.ReadByte() and Marshal.WriteByte() (and definitely beyond GetPixel and SetPixel).Is there a way to put all the pixel data of the bitmap into a Byte array that works on both 32 and 64 bit systems? I want the exact same layout as the original bitmap, so the padding for each row (if it exists) also needs to be included.Marshal doesn't seem to have something akin to:
byte[] ReadBytes(IntPtr start, int offset, int count)
Unless I totally missed it..
How To Clear All Memory Used For Item As Array
Jul 25, 2011Module Dic_Select
Public DicDataSelect() As DicDataList
Public Selected_Dictionary_Name As New ArrayList
Public Function New_Dictionary(ByVal Dic_Name As String) As Boolean
For i As Integer = 0 To Selected_Dictionary_Name.Count - 1 Step +1
[Code] .....
Memory Leak In Large Array?
Feb 12, 2010I need to improve memory performance on my application and I could see that I have problems with memory fragmentation.I've read an interesting article on large objects from Andrew Hunter of Red Gate, and one of the solutions he recommends isow do I implement his suggestion in my code?My program has a very complex form (with an object that leaves residual memory every time it opens. I found a complex list that may be the culprit, and I'd like to implement his suggestion to see if it fixes the issue.
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