i have been troubled with my resize function, I have loaded images and when each image is selected is will be displayed on the picturebox...the problem is that when i resize the image in the picturebox it throw me an error message Object reference not set to an instance of an object. I have 4 buttons left, right, up and down..here's my code for it...
[Code]...
I am trying to resize images in batch using the below VB.NET code. The images are fairly large and when they are resized the images do not look very smooth. I have looked at Drawing2D.SmoothingMode.AntiAlias but cannot get that code to work.
Imports System
Imports System.Data
Imports System.Math
[code]....
I have two bmp files:
footer.bmp: 200 x 200
product.bmp: 1000 x 1000
I want to create a new bmp file with 200 x 500: Append the footer.bmp into the bottom of the new image - position (0, 300) Resize the product.bmp to 200 x 300 and position into (0, 0)How do I do this using VB.NET?
Dim oBitmap As New Bitmap(200, 500)Dim oGraphics As Graphics oGraphics = Graphics.FromImage(oBitmap)
I looking for right code to proportional resizing images in different formats in this peace of code. I would like when this will go through folder to folder.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
For Each File As String In Form1.rt.Items
Dim foundFileInfo As New System.IO.FileInfo(File)
Dim a As String = tB1.Text & "Gallerymanje" & foundFileInfo.Name
Dim b As String = tB1.Text & "Galleryvece" & foundFileInfo.Name
My.Computer.FileSystem.CopyFile(File, a, True)
My.Computer.FileSystem.CopyFile(File, b, True)
Next
Close()
End Sub
I'm using a web cam that takes 320 X 240 pictures. This sort of gives the picture a "landscape" look to them, and I need to re-size the pictures to a 169 X 225 "portrait" picture. Its for a badge program. Anyway, when I re-size the pictures, they get all scrunched up because of the difference in aspect ratio. Is there a way to re-size the image and the aspect ratio at the same time? Would this be considered cropping or resizing?
View 5 Repliesi am trying to figure out how to go about my two problems i am currently having when trying to display a resized picture into a picturebox on my form.What does it need to be in order to grab the image thats already been cropped in the pbCrop picturebox? I have the cropped image in the pbCrop picturebox and i then am trying to resize it.I need someway of taking the newly resized image and placing it back into the pbCrop picturebox, indicated by the "'code to draw it into the pbCrop picturebox" code below: NOTE (Ly = 60)[code]
View 2 RepliesI am trying to do a code for my application that will crop a selected images into oval shape.
I tried to search for a reference on the internet there is only example on how to resize it. But is it possible to crop it into shapes?
I've got a data-bound data grid view and one of the fields is an image. How do I scale down the image to a reasonable thumbnail size (say, 100px wide) and adjust the height and width of that cell so that it fits the image?
View 2 RepliesMy app has scrolling images in the background and a picturebox on top. The image in the picturebox has transparent parts. How can It so that the transparent parts show whatever is belo the picture box, not the form background? I have tried taking screenshots and positioning them as background but this just freezes the app.
Dim ScreenSize As Size = New Size(154, 83)
Dim screenGrab As New Bitmap(154, 83)
Dim blank As New Bitmap(100, 300)
[CODE]...
I'm trying to change the size of the image in a picturebox, without resizing the picturebox?
View 3 RepliesOk, it seems my question might not have been straightforward, so here is a more generic question.On a form in a picturebox if I have a 32 x 32 picture. How can I scale it to be 64 x 64.I am not refering to stretching the image or resizing the picturebox. I mean using the ScaleTransform method of the graphics class. How can I do this without deforming the image?
View 5 RepliesThe problem is that i am trying to resize pictures so they fit into a picturebox with good quality. I have found a code (se attached code) on the internet that resize the picture correctly but the quality is poor.
If i resize the picture in Adobe photoshop before i put it into the picturebox the quality is good so there is nothing wrong with the orginal picture or the picturebox. It's the resizing that is the problem.
Here is the code.
'Generate new image dimensions
Public Function GenerateImageDimensions(ByVal currW As Integer, ByVal currH As Integer, ByVal destW As Integer, ByVal destH As Integer) As Size
[Code]......
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
In VB6 I could embed a panel or picturebox containing controls or images within an outer panel or picturebox. If I moved the outer control then the embedded panel would move with the outer panel and stay in the same relative position, which is what I require. This doesn't seem to happen in VB.NET, the internal panel stays fixed in its location, even if I have pasted this panel within the outer container. Is there are trick to this or do I have to code to get the internal panel to move with the outer one? How does an internal container remain embedded within an outer one?
View 4 RepliesI want to be able to click a picturebox with an image and then load 3 other pictureboxes with images and then be able to click one of those 3 images and have it show in a bigger picturebox. How would I go about doing this? If its to confusing I will attach an example project I put together.
View 3 RepliesThe title is simple and to the point: I have two images, same dimensions that I want one to fade in over the other. How do I do this without locking up the GUI?
View 16 RepliesThe title is simple and to the point: I have two images, same dimensions that I want one to fade in over the other. How do I do this?
View 6 Replieswas just wondering what i have to do to create a save button that actually works. i have a form with a picturebox. i want to create a save button called btnsave and when an image is in the picture box the user can click the save button and it will save it to a location of my choice example c drive. and the other question is how do i get the saved files to name its self in numerical order. for example: image1, image2, image3, image4 and so forth.
View 1 RepliesIn this question I managed to combine two .png images into one, and then display the result in a pictureBox image.However, the pictureBox seems to scale up my image! Makes it bigger!The pictureBox size is 96x128.The two images I have combined are 96x128.The pictureBox's SizeMode is set to "Normal"
View 1 RepliesWell' I'm trying to print image from my PictureBox...this is my code for drawing image: e.Graphics.DrawImage(PictureBox1.Image, 0, 0)
But I need something more specified...when I print my document with this code, for some of those, I don't get the whole document. So I need to specify that...I need to stretch my image to my A4 page so that m.
I have made a screensaver in VB.NET. I am running into some roadblocks in the code though. The idea first was to have a ball bounce across my screens. It then evolved into spawning new balls that bounce across the screen. I then added collision detection so they would bounce off each other. Here is the problem that came up:
When said balls overlap each other, you can easily distinguish the edges of the picturebox that holds the images. I have made the background of the picturebox transparent, made the bitmap with a magenta background and made magenta transparent (for the image), but I can still see the picturebox edges when they overlap. It seems the transparency is not only making the background transparent, but giving it X-RAY vision to display not the visible area behind it, but the root background color of the form. here is a sample of the code which makes the transparencies.
Private Sub frmscr_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim bmp As Bitmap = My.Resources._smiley_face_image
Dim clr As Color = Color.FromArgb(255, 0, 128)
bmp.MakeTransparent(clr)
[code].....
I also tried to see if changing the image from background to foreground would help...no such luck.
I have a pictureBox on my form along with two buttons (Back and Forward) but I can not find a viable method of doing what I wish to do: Scrolling through images in a folder like the default Windows Picture Viewer does with Arrow Keys.Is there an efficient way to do this?
I'm using Visual Basic .NET with Visual Studio 2010, if that matters.
I'm trying to accomplish is having a 20x20 pixel image show up multiple times as determined by the grid selected. To keep things simple, what I'm trying to do is create a 9x9 grid of a image onto a form. I'm assuming that a picture box is the way to go, but don't know how to make that happen or if it's even possible.
So it would go something like this:
2D array already assigned:
Sub ShowGrid()
For rw As Short = 0 To 8
[Code].....
But instead of using a text box with values, I want to show a grid of a small image file, like cup.png which is 20x20 pixels or whatever, so what would show up on the form in this case would be a 9x9 grid of the image file over and over to create a grid.
Then the next step I hope to accomplish is to have that 20x20 square picture hold the grid(x,y) value for a mouse click. So if the image at grid(3,5) is clicked, it will give me that value, 3-5.
i'm using VB.NET 2005 and mySQL server 5.0. Can i ask how do i retrieve the image from database and display images onto picturebox? mySQL column name is pictures then the data type is varchar. and how should i write on the database? eg. abc.jpg?
View 2 RepliesI would like to have a series of images displayed sequentially in a picturebox (every 10th of a second). I captured the images (image0, image1, etc) and placed them in a temp folder every 10th of a second.
I tried the following simple code, but I can only see the last image being displayed in the picture box.[code]...
i created a drawing apllication in my solution by this code.by this i can draw images in a picturebox and can to save. when i click the clearbutton the image on the picturebox is cleared but the problem is after clearing the image i can't draw any thing in the picturebox without the form's reload
[code]...
I got down the drawimage part. The problem I am having, is when I draw another image, it replaces the old one. Here is my
vb
Public Class Form1
Dim PicPoint As Point
[Cod].....
i am developing a imageviewer like the one windows xp has. one thing i dont know how to do is: how do i display a big image(bigger then the screen) in a picturebox with bars on the left and the buttom side? like the imageviewer of windows xp does when you want to watch big images in full size.
View 2 RepliesHow 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 Repliesloop all pictures found in this path C:Images to a pictureboxin the code below it show's all the pictures to the form..
Private getpath As String = "C:Images"
Private imageFiles As String() = IO.Directory.GetFiles(getpath)
Private imageIndex As Integer = 0
[code].....