Create In-memory Image File With String?
Apr 9, 2010Is there anyway I can create in-memory JPEG file with a 'String' (yes with a String)?
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Loading An Image From A Jpeg That Exists In Memory (but Not On Disk) Using Direct Memory Access
Nov 5, 2009In 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.
View 10 Replies[VB2005] Rotateflip Image Is Eating More Memory Than Non Rotated Image ?
Sep 8, 2009 I'm writing a program that print images in full page. I.E, I print image on A4 paper, landscape. When I print an image without rotating it (the image IS landscape), the image uses all the space of the page, and is not cropped. it is OK. The print job is about 1.5 Mb. When I print an image WITH rotating it (the image IS PORTRAIT ), the image uses all the space of the page, and is not cropped. it is OK. The print job is about 28 Mb. The images are about 2000x3000 pixels, and stored in JPEG files (about 2.5 Mb each). I suppose that the 28 Mb should be the "uncompressed" size of the picture, and 1.5Mb, the compressed size...
By the way, When I look at the task manager, my application memory usage grows by job size, which seems to be OK. It grows either 1,5 Mb if no rotation is occured, and 25-30Mb when rotation occured.
Since I can print hundreds of image at once, my print queue will grow abnormaly if I need to rotate all
Create A Non Editable Image From A Text String
Sep 30, 2009What is the best way to create a non editable image from a text string? Currently I am saving a number of strings to .csv files. Are there any options that do not involve buying additional products? I am using VB.net 2005.
View 8 RepliesVS 2010 Create Image File (iso Or Bin Cue) From CD?
Aug 14, 2011I am developing a software that needs a function to clone CDs to image files (preferably bin cue). I have googled but not found any piece of code, class, dll or activeX control that can do this.My best bet is to use CDRDAO compiled for windows
View 7 RepliesHow To Create A Bitmap Image Using A Text File
Jan 9, 2010I am trying to convert from a text file to an image(bitmap) file.
For example, test.txt: 01 23 34 56 78 90
[Code]....
The first step will be reading the data, so I created some VB codes:
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.Filter = "Text Files (*.txt)|*.txt"
openFileDialog1.Title = "Select a text File"
' Show the Dialog.
' If the user clicked OK in the dialog and ' an image file was selected, open it.
If openFileDialog1.ShowDialog() = DialogResult.OK Then
' Open file.
[Code]...
The second step will be converting the data to some data format which can be used in a bitmap image. This part is making me confused. Some codes I made is listed below:
[Code]....
Create Image File From MS Access OLE Object Column?
May 21, 2009An OLE Object column contains images but the image type (jpg/gif/tiff) is unknown. These images need to be extracted from the DB and saved to disk. The application is primarily using VB.NET but C# examples are welcome too.
View 3 RepliesSetResolution For Image In Memory
Apr 8, 2009I'm trying to set a resolution to 600 for an image.I have:
-Public img As New Bitmap(6600, 4800)
-Public gr As Graphics = Graphics.FromImage(img)[code]
Create A Jpeg File In C:imagesFolder Based On The Image Stored In The Database?
Nov 19, 2009I have pictures of each employee stored in SQL database with Image database.
Select pic from empimages where emp_ID=10
give the picture of that employee in binary format.
How do I create a physical jpeg in C:images folder based on the above query in vb.net.
Add A Bitmap Image In Memory To A Page?
May 20, 2009I'm trying to add an bitmap image in memory to a page using a System.Windows.Forms.PictureBox object, but it's not working. Here is my
HTML
Dim bytes As SqlBytes = reader.GetSqlBytes(0)
Dim image As Bitmap = New Bitmap(bytes.Stream)
Dim picBox As PictureBox = New PictureBox()
[Code].....
Image Looping Used Big Memory And Added?
Mar 9, 2009I create a program that loop the images in the picturebox, now the concern is while the images is looping or changing the usage of the memory of the usage of the computer is going bigger.i mean it's added the new usage memory when picture is changing. i wanted to dispose the previous usage so that maintain the usage level, but i don't know how
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Large Image Eating Away At Memory
Jun 22, 2010Ok so i have an jpg image of around 8.10mbs at around 13424 x 11344 pixels, i need to load the whole image in to a scrolling picturebox, is they anyway to do this without using so much memory for example like what google maps does n cuts the image down and some how stitches it all back to gether?
View 1 RepliesMaking An Image Of A Memory Card?
Mar 3, 2011creating a program in VB.NET that can make an image(.img) of a memory card?
View 5 RepliesVS 2008 Save Image In Memory?
Mar 13, 2010Im trying to make an advance chat room with some cool features.
How would i save an image in memory from a stream?
Vs2010 Save Image Memory Leak
Oct 5, 2010I'm basically making an app to take screen shots in a game as I chat. There will be a bit more to it later, and I will likely be using PNG but that is besides the point for now.Whenever I take a screenshot and save, doesn't matter If I am saving converting quality or using system.drawing directly, the memory use goes up about 1.5MB per save. I'm rather new to VB.Net so I can't really figure out why...as far as I can tell I release everything.[code]Ihave tried setting it to nothing with no luck, and aside from that memory slowly goes up per time Enter is pressed. I'm not sure why data would be saving to memory when Subs and Functions are supposed to release data after use?
View 1 RepliesUsing XML File To Create A MSSQL Connection String?
Apr 6, 2010I want to create a windowsform that reads an XML file called databases.xml and has the values:
<app:Entry app:Title="DisplayAlias" app:Database="databasename" app:server="databaseserver"/>
so there will be say 2 or 3 of these entries i want it to read the alias and display them in a drop down box then when select alias, connect to database (mssql) using values in database and server using windows auth......
Interface 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?
Resize An Image (jpg,gif,png) To Avoid Out Of Memory Error In Picturebox Control On .NETCF 2.0
Sep 15, 2009I'm searching for a solution to resize image(jpg) being passed in from an array in Picturebox Control on .NETCF 2.0 in VB.NET without resorting to using the opennetcf library, is it possible?
View 1 RepliesCreate A Memory Game In Program?
Apr 16, 2012I am a noob to Visual Basic and I am currently learning it at my college. I have a final project to do and I am having some trouble deciding on how to attack it. First off, I have done a lot of research and I cannot find my answer, so I am using this(post) as a last resort. The book my prof is having me use is outdated, its coding on vb6, and we are using vb2010...hence my problem. I am not looking for an answer in code, but more to be pointed in the right direction, or maybe some classes that I do not know about.[code]...
View 7 RepliesCreate A Memory Leak In C# / Program?
Jul 2, 2011Inspired from this question, was wondering what are the possible ways to create a memory leak in .Net. I once found one with ODBC Data Access. Has anyone had any experiences with latest version?
View 6 RepliesCreate Ximage From (wpf) Visual In Memory?
Jun 13, 2012I'm trying to convert a visual to a Ximage(to print on pdf). Currently I'm using this:
Dim img As XImage = XImage.FromFile(path.LocalPath)
But it requires me to save it on the harddrive I would like to use this but I don't know how to create a image from a visual(in memory) and load it in.
Dim img As XImage = XImage.FromGdiPlusImage(myVisualAsImage)
Variable Create A Memory Cell ?
Apr 8, 2009Does a variable create a memory cell, or is it actually the memory cell, for example: Dim Answer As DialogResult
This is the explanation I have written for that line of "This line of code uses a Dim (Dimension) statement to declare a variable called Answer.
This variable creates an object to store the users answer to a dialog result." and this is the explanation that my friend said it was:
"This line of code uses a Dim (Dimension) statement to declare a variable called DialogResult. This variable is a memory cell to store the users answer to the dialog result."
DB/Reporting :: Create And Populate In Memory Datatable?
Sep 23, 2008Probably a very dumb question but I have a program whereby I create and populate an in memory datatable, which I then add to a data-set. I then run a couple of updates on the dataset and need to know how to then send these updates down into the in memory datatable :Here is a mock up of the code structure following the creation and population of the table :
[Code]...
Out Of Memory Exception - Can't Create Windows Handle
Nov 26, 2011I have searched other forums, google, etc. and have not find a solution. I am creating a VB.NET application using Visual Studio 2010. My application runs fine inside the IDE. Outside of the IDE, it crashes immediately with an OOM exception. I have compiled the program in both VS 2010 and VS2008. The outcome is always the same. I increased my Desktop heap to 12288 meg from 3072 meg thinking that was the issue, but the outcome is the case. Although the increase does improve my response in the IDE. The error is also being reported as related to mscorlib.dll; and my version is for 2.0 framework is 2.0.50727 and for 4.0 framework is 4.0.30319. I am running Windows XP/SP3.
View 13 RepliesOut Of Memory Error: ' AnimatedImage = Image.FromFile - C:Documents And SettingsMain UserMy DocumentsVisual Studio
Jun 21, 2009I'm trying to load a .ani file into a bitmap so it can be displayed on a control or on a form. The following code has been paired down from a short 'Download Sample' which I then edited to point to my .ani file. As indicated in the following code, I can load a .gif file, but I can't load a .ani file.
Here's my code:
Imports System
Imports System.Drawing
[CODE]...
ASP.NET - Concatenate String Memory Leak?
Jun 16, 2012I am supporting an application, which uses lots of String concatenations and I believe this is the cause of a memory leak which eventually causes an OutOfMemory exception. Please have a look at the code below:
Public Sub ConcatenateString() As String Dim Test1 As String
Test1 = "Hello"
Test1=Test1 & "my"
Test1=Test1 & "name"
[code]....
I believe there are nine Strings in memory at line ten as String is an immutable object, but only one reference to the String Test1 that contains: "Hello my name is Joe Blogs what is yours?". My question is; are all of these Strings picked up by the garbage collector when they go out of scope? i.e. when the sub routine finishes running. I seem to have a memory leak and am thinking that I should really be using a StringBuilder object.
C# - Which Takes More Memory - String Value Or Long Value
Apr 16, 2012I have a client application that connects to a WCF service, i get the file size from the server as a long value then i convert it at the client to a string so it appears like ex:52.21 MB the application gets too many files sizes every time user changes the directory pathso the question is :should i convert the values to a string format from WCF service app then return it to the client as a string format or should i just return the size as a long value and let the client to convert it to a string format in other way which value take more bytes in the memory:
[Code]...
Create The Control Runtime And In The Memory And Not Showing Anything In The Form?
Jun 8, 2010I wanna to load a web page and login.I know how to do this with a web browser control but:I wanna to create the control runtime and in the memory and not showing anything in the form.I wanna to load many pages in the memory and extract my information needed without anything to see by user.
View 1 RepliesUser Control - Failed To Create Component (Out Of Memory)
Nov 3, 2011I am working on a user control. Embedded in my user control is another user control. All of a sudden while programming some simple stuff I get an "out of memory error message". I can no longer load my project (after reboots etc.). I start a new project, copy the control.vb files into a new project folder.. add then add the control to the new project. Ican view the design and the code of the control. When I attempt to drag the control onto another control in the same project I get an error message
"Failed to create component... 'system.outofmemoryexception. Out of memory".
Add A Text String To An Image And Save The Original Metadata To The New Image?
Aug 20, 2010I try to add text strings to an image but keep the metadata of the original image. The problem is How can I save ImgMetaData (from the original image) to the new image?
Here are the codes:
Public ImgMetaData As BitmapMetadata
Public myImageCodecInfo As ImageCodecInfo
Public myEncoder As Encoder
[Code]....