C# - Replace An Image In A PictureBox Control?
Apr 10, 2010
Following on from my question here [URL]
If I replace an image in a picture box, should I dispose the original image first?
Or, what about this situation:
Dim bm As New Bitmap(32,32)
bm = New Bitmap(32,32)
bm = New Bitmap(32,32)
bm = New Bitmap(32,32)
Does bm need only to be disposed at the end, or should it be disposed before each re-creation?
A big oversight there on my part. I knew a control took care of disposing its children but It hadn't occurred to me that I should dispose an old image if I replaced it.
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Feb 1, 2012
I'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
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Apr 10, 2009
How do I draw an image respectively on the PictureBox control and Image object? Welcome to the All-In-One Code Framework! If you have any feedback,
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Apr 1, 2009
I've come up with a workaround, that isn't quite working.I have an image displaying nothing and several images displaying different stuff.When button1 is clicked, I want the image displaying nothing, that is image1, to display what one of the other images are displaying.I tried image1 = display1...I get no errors, but it doesn't work... Image1 has not changed. Its not displaying anything..
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Jun 21, 2010
How can I change the content of the PictureBox control based on user entry? I'm assuming it would be similar to this:
[Code]...
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May 16, 2011
I'm inexperienced with windows forms (vb.net), and I have a rather silly question.I'm opening an old project of someone elses, and there's a PictureBox control on the form. The PictureBox has a photo, and I'm trying to find the location of the photo on the computer but can't find it.In ASPX, I can just look at the code behind and find out where the tags are pointing to (for the photo).The only code that exists for my object, with the image property is this: [code]
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Nov 7, 2010
I am working on my game maker and I need to make it so that a picturebox with a transparent image will show the control behind it, like if the control has a image or just a color.
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Dec 23, 2009
There are some fundemental concepts I am missing about graphics in VB.NET.
I have a control with an image that I want to rotate 15 degrees.
How do you get the contents of a graphic object into a image object?[code]....
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Jun 27, 2011
What line of code would I have to use in order to insert image into a PictureBox control?
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Mar 30, 2010
I am writing a VB 2008 Express Edition application which has multiple forms. All of the forms contain one or more PictureBox controls. All PictureBox controls have assigned bitmaps via Image property during development mode. So far, all the bitmaps displayed during runtime without a slightest problem. Now, suddenly, not a single new one (i.e. which I add from this moment on) would display bitmap during runtime. All the old ones (i.e. those which I have added up to that unspecified point in time when something went wrong) still display bitmaps fine as they did before. But any newly added PictureBox (or, come to that, any other control which can display bitmap.
I have tried also Label control) displays the bitmap loaded via Image property only during development mode. During runtime the PictureBox shows as empty. I tried to load the bitmap during runtime via command Image.FromFile and that works fine (but I don't want to use this approach in my program). If I create a completely new application, all PictureBox controls display the bitmaps just fine. I don't get any errors or warnings in VB editor. I reinstalled the whole VB 2008 Express Edition including SP1 and .NET 3.5 SP1 with no difference whatsoever (as would be expected as any new application works with PictureBox controls fine).
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Mar 21, 2010
I'm creating a program in visual basic 2008 that can scan an image straight to a picturebox using a scanner.
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Sep 15, 2009
I'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?
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Mar 21, 2012
I am having trouble in browse & then save an image to SQL Server.ALso I want to retrieve that image.This is the code to browse image & show it in PictureBox1 Control
Public Sub SelectImage()
With OpenFileDialog1
'.InitialDirectory = "C:"
[code]....
But don't know how to pass it to image parameter .Also is there any way that I can save image on Local drive & just save the url /location/name in database?
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Aug 15, 2011
I drew an image in a picturebox with the image height as picturebox height and image width as picturebox width. The image is placed somewhere on the center of the picturebox. My intention is to scale the image to fit to the picturebox.
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Sep 27, 2009
I have a program I'm working on that, for one of the features, allows the user to drag an image from a picturebox, into the main form space, anywhere they want. [code]...
When trying to drag the image from the CurrentTilePicBox, the very moment I move the mouse while dragging the cursor becomes a circle with a cross and won't drag and drop into the new picturebox.
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Feb 8, 2010
i'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.
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Sep 15, 2010
I have a Picturebox and a two Buttons on my Form. On click of one of the buttons I want to change the image in the picture box at runtime.
This works fine when I give the location of the image (the full path ) on my computer - but then of course it will not work if I use the solution on a different computer .
So I have made a folder named "Pics" inside my application and added two images into it.
How do I get to this local folder in the following code?
Picturebox1.image = system.drawing.image.fromfile (??? )
instead of the usual,
Picturebox1.image = system.drawing.image.fromfile ("C:UsersMyName My PicturesMyPicture.jpg" )
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May 20, 2009
i'm lost on this code.. i have a picturebox that swaps 2 images, depending on the action, file_red and file_green.. what i'm trying to to is, if a picturebox switches a image or not, to be able to detect that and have textbox8 add a line with the detection.
[Code]...
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Jan 31, 2011
I need to plot some analog values read from the serial port.I plot them in a picturebox starting from left. When I reach the end of the control at the right side I shift all values to the left of a point and I plot the new point at the right, (I have some flickering but it could be acceptable). This is my plotting control.My problem is that I have to clear the control (picturebox) in order to plot the shifted graph, but the method Clear of the Graphics class clears everything inside the picturebox, even my grid.How can i make always visible a grid "in" my picturebox?
1.a transparent image with a grid over the PB? (the clear method cannot remove it)
2.an image with a grid below the picturebox that must be with a transparent background to make visible the grid?
3.multiple layers on the same picturebox?
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May 23, 2010
i have a image with four squares evenly spaced out. I want a picturebox's image to be one of the squares at a time so it's like a animation except it's only one image.
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Dec 30, 2010
I have a PictureBox which I would like to check if it's the same as one already imported to resources . If it's the same it'd do a condition otherwise it's do something else .
If I try
If PictureBox1.Image = Jogos_Matem�ticos.My.Resources.Resources.Cross Then
'code here
Else
[Code]....
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Feb 8, 2011
I have an application which first load an 1200*800 image into an 600*400 picturebox. When i crop the whole image in picturebox and save it, the size will be 600*400. How can i make it save in 1200*800?
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Aug 14, 2011
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
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Feb 19, 2012
I'm in search of a simple algorithm to replace a color in an image with a different one like in this one-> [url]. I'm using VB.NET. Can a "flood fill" algorithm be applied for this purpose?
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Aug 15, 2011
I have program that read the image from file with extension .ojn, I can show that image file into picturebox, [Code] 268 is offset that contain image size (in byte) and 296 is offset that contains the image. I want user can replace image on offset 296 and write size of selected image to 268.
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Nov 8, 2011
I want asking, I have program that read the image from file with extension .ojn, but I can show that image file into picturebox, Here my code to read the image:
Dim path As String
path = openfiledialog1.filename
Using fs As New FileStream(path, FileMode.Open)
[code].....
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Jul 29, 2009
A) can i set the minimum width of a new created tab ?
B) can i replace the default tab shape with an image?
C) is there a simple why to drag tabs to change their orders in the tab list like most modern application do or i have to code it ?
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Mar 15, 2010
I've got a Panel on a main Form containing a PictureBox control on Top of a TableLayout control. Both the child controls have their docking properties set to Top. The Picture control has sizemode set to Zoom.
What I'm finding is that the picture doesn't size properly when I start the app. There is a border at the top and bottom in the PictureBox control. It's only when I resize the overall form that it's correct.
So at the moment I've got this ugly bit of startup code, just to fix the problem Me.WindowState = FormWindowState.Normal Me.WindowState = FormWindowState.Maximized
What am I missing?
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Oct 14, 2011
When i scan a image from my scanner it's scan properly if the file exist with same name programme show error it's any way to replace this name and save the properly.
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Sep 13, 2010
I have big problem with my CHAT app. I want to add smiles but i have some problems. I using transparent Richtextbox, and when i try to use Regex system to replace text with image it work, but everytime other smiles disappearing, i only see last one. Second thing, i want to use GIF animated smiley and this Regex method don't work with all of these my problems. So i need an other way... Can anybody show how to do this
Imports System.Runtime.InteropServices
Public Class TransparentRichTextBox
Inherits RichTextBox
[code].....
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