In my user control you can load an image into a Bitmap type, it then displays the image onto the usercontrol. However, it works fine with .gif format images, but when i use .png it seems to make the image bigger than what it is.
Private imgPicture As Bitmap
Public Property Picture As Bitmap
Get
[Code]....
I'm sure there are similar threads, but I've search and tried most things and still can't find something that works.
I am testing a small project, in the attempt to find the solution for a much bigger application. So, here's the deal. I'm using VB 2005 and MSSQL 2005 (both are Express editions). I've stored the names to some images in the database.
When I use PictureBox1.image = My.Resources.<filename>
and build the application, it works and properly displays the image. Now, what I'm really trying to do is extract an image names from the database and assign it to a variable, this is what I have.
Dim EqTest As New Test1DataSet.EqTestDataTable
Dim EqTestAdapter As New Test1DataSetTableAdapters.EqTestTableAdapter
EqTestAdapter.Fill(EqTest)
[Code]....
I've used the messagebox for testing so that I can see what the value of "Trythis" is, and the string is "My.Resources.<filename>", which is the correct string, but I can't use that string in the picturebox to display the image, because I get an error "Value of Type String can not be converted to System.Drawing.Image".
Imports System.Drawing
Imports System.Drawing.Imaging
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code] ......
I am using this, however I get a GDI+ Unhandled Error.
im toying with an idea based round having controls end user movable at runtime, and having a function to save the current position/location of all the controls, so then i can skip through presets i already made as it were. Ill be using .ini files eventually (just testing with txt files to check it was a valid aproach) I can get all the info i need into the txt file, the problem is how to read it back into the app?
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I use some code to successfully resize and save images - but I want to save the image to 800x800 px size on a canvas of 900x900px so it has a white border type thing around it.
View 8 RepliesI set a background image to my project. When I run it, It comes with an error, file not found:
Could not load file or assembly 'System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.. I do have the file, and I didnt move places. I still have it and also reloaded it in the resources.
how to create a bitmap image of a specified size? then how to save and reload such a bitmap to and from a file?VB2005 starter
View 1 RepliesOn forms size and such, is it in points or pixels? I'd assume pixels, however, it seems when i make a image that is in the same size, (i put the size as the dimensions for pixels), the image seems not the same size. I'm unsure of how big a "point" is, but i am aware of a pixel.
View 7 RepliesIs there a way to tell the DISPLAY size of an image in a picture box? If the PictureBox.SizeMode=Zoom, the picture sometimes is not displayed as big as the picture box is, and is sometimes displayed smaller, or larger, than the actual image is. I just want to know what size it is actually displaying as.
View 3 RepliesHere is the code:
'Add images column to DataTable.
ds.Tables(0).Columns.Add("Image", GetType(BitmapImage))
'Create array of image paths.
Dim currentDir As String
[code]....
'm working on an Image Encrypting software which reads out all the pixels of an image and then relocating the pixels in some way.
My Code is as below
Dim Img As New Bitmap(tbEpath.Text)
Dim ImgSize As Integer = Img.Width * Img.Height
Dim Pixels(Img.Width, Img.Height) As Color
[code]....
control Paste (Ctrl+P) Image size in RichTextBox I can do an context menu with a item of Paste, and in it I can control what image type is (width, height, resolution, format...), then for example I can msgbox when the user try to paste (using contextmenu) a too big image. but if the user uses Control+P the paste occurs whitout my code.
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I've been reading a bunch of tutorials on Drawing in VB.Net, and still am reading them, but I have a question which I know I'll need to ask sooner or later:
How can I create a 4000x4000 size bitmap, and then draw a pixel at a certain coordinate on a bitmap? Like say I want to draw a BLUE pixel at coordinate X = 3000 Y = 3450. How could I do that?
as i said earlier i am working on an program called logon screen changer xp
in a folder i have 2 bmp files i want only 1 but i dont know which so i want a vb.net sample code which searches bmp files in a folder according to the resoltion
the resoltion i want is 640 by 480
I have just found that if a DataGridView image column's size (height & width - in pixels) is smaller than the image's original size (in my case all images are exactly 180 x 180 pixels) at the time the cell is populated then the image is automatically being converted to a lower resolution I assume to fit the image completely within the size of the cell). How can I stop the automatic scaling of the image?
The image below show the same file displayed twice, both at 60x60 pixels ('Thumbnail' column) and a blowup of the image (PictureBox populated via the CellMouseEnter event) to it's right. You'll notice the resolution of the first blowup is far less the the second. so, what made the difference in the resolution of the blowups is? In the second blowup's case I'd first stretched the image column's width to ~180 pixels and set the row height to match (via the ColumnWidthChanged event) then populated the DataGridView then stretched the image column to 60 pixels (its minimum).
I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesThe object is to load an image into a picturebox, then save a new copy of the image in a different location, but with the height and width of the image box not the original file's height and width but I can't figure it out. I've got the loading and saving working no problem but getting it to adopt the new size is stumping me, it just keeps saving with the original file's size properties
View 2 RepliesI Tried To Check If Part Of Image Existing In Another Image
Explanation:
full image:
[Code]...
I am working with vb.net and want to increase the size of image when the cursor is over that image, but the image should come back to its original size when the cursor leaves that image area.I've used the following code to increase the size of image:[code]I've used the default size class but, it gives some different dimensions.by the code that brings the image into its original size that I've been declared into the picture box properties.
View 2 RepliesI am trying to split the image into 9 equal regions , and the below code does it well the problem is i want to get the selected image size and not picturebox sizeso what should i change to get the selected image size instead of picture box sizei dont want the picture box to grow in size with image because it will hide other buttons/textboxes etc
Dim xi As Integer = (PictureBox1.Image.Height)
Dim yi As Integer = PictureBox1.Image.Width
Dim px As Integer = xi / 3
[code]......
Set picturebox size to size of image file?
View 5 RepliesHow to save image from webbrowser loaded page to hdd (after loading save to hdd)?
View 2 RepliesIve been programming in VB6 for years, i figured its time for an upgrade. Here's what im doing, and what the problem is:
Im loading a bunch of pictures on top of one image. They are all PNG files, and some of the images have transparent edges, and some semi-transparency within the image itself.
So basically, i need to be able to load these images on top of the other images, and still maintain the transparency.
Is this possible in VB08? This is one of the main reasons i moved to 08 from vb6, more things possible including multithreading.
This code resizes a jpeg image, but instead of saving it I simply want to display the result in a picturebox. I moused over the the image box and the value thumb and they seem to be different formats. How can i convert bitmap to image?
View 3 RepliesI'm trying to rotate a image/bitmap, i have a code to draw a image wit a rotation but only on a graphic, show do i make it into a image/bitmap?
Dim g = Me.CreateGraphics
g.Clear(Color.White)
Dim bmp As New Bitmap(My.Resources.RedStone_Line)
RedStone.DrawRotateImage(g, bmp, 32, 0, 90)
bmp.Dispose()
g.Dispose()
bmp = New Bitmap(32, 32, g) 'This is giving me an error
I need to read a bitmap generated with paint or similar programs and interpert the picture to detect straight lines of black, larger squares in red and smaller squares of yellow, green or red. Which one of the Visual Basic environments are is best suited for this? WPF or Forms or..The lines represent walls and for start we have square objects as obsticles. I would like to create a maze and allow a dot to travel between obstacles leaving a trace of pixels and not hit any of the objects untill it exits.
I like to write the logic for it but I do not know how would I read a 500x500 pixel picture and decode the colors of each pixel. I like to assign a byte for each pixel's color (256color) but only use 4 bits of it to for start.
I am doing this as hobby. So please forgive me because I should only look at your answers during my free times.It will take some time before I could see it and mark your work as Helpful or Answer.
I'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()
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When I type a file with out a path it mean he is in: BIN/DEBUG folder. When I run this program I get a big red 'X' allover here..
Imports System.IO
Public Class Form1
Dim SR As StreamReader
Dim SW As StreamWriter
Dim NumColumns, NumRows As Integer
[Code] .....
How do you change your cursor into a bitmap image?
View 2 RepliesI knew everything I needed to save an image, so I type in my code, and yet another error pops up. Here's the bit of code:
screenshot.Save(CaptureMain.picLocation.ToString, Imaging.ImageFormat.Bmp, "Screenshot")
And, the error's kind of lengthly...
Error1Overload resolution failed because no accessible 'Save' can be called with these arguments:
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type 'String' cannot be converted to 'System.IO.Stream'.
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type
[Code] .....
The variable 'screenshot' is a bitmap.
