i was trying a painting applicaion in which i am trying Zooming and editing.it means after zooming i will edit or draw the some thing in the canvas.i i am able to do that but th problem is scalling. here i ma using the translate transform to zooming.
after zooming if i draw somthing my mouse positions are not correct.
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I am building a VB application (Visual Studio 2008). I have a drawing app where a user can draw out a 2d house-floorplan.When the app loads, it draws a grid on a picCanvas. Everything works the way that i want it to except that the lines don't "snap-to-grid" as they are being drawn.I suspect that the problem is in the picCanvas paint sub. [code]
View 1 RepliesI have a picturebox with zooming/pan capabilities. I am now starting with the zoom. I did that by:
getting the mousescroll event( up or down)
add height and width to the picturebox
get the pixel coordinates of mouse inside the image.
my problem is that, when i change the size of the picturebox, the pixel coordinates in the picture is not the same with the previous image without zoom. I need the coordinates to be the same even the picture is zoomed.
i need to add zooming option for picture box with C#
View 1 RepliesI have a picture box control on a form that displays an image that I draw. I create a bitmap (oBM) using the picture box's ClientSize width and height. Then I create a graphics object to draw on... OutputDevice = Graphics.FromImage(oBM)
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i have a question to do with vb.net. i have a picturebox with zooming capabilities. but i want the zoom button to zoom a certain percentage with each click. for example:
1st click zoom image(1.5)
2nd click zoom image(2)
3rd click zoom image (2.5)
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I have a trackbar in my application where somebody can zoom in and out from a picture.
I can now zoom in with this code under the Value changed event of the Trackbar:
Private Sub TrackBar1_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TrackBar1.ValueChanged
''Dim scalefactor As SizeF
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I've been trying to get zoom capabilities on this
Public Class Form1
Private m_PanStartPoint As Point
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
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I can drag the whole panel around and scroll thru the picture but some of my images are quite large in length, is there any way for me to add zoom in or out capabilities to this code? tried adding a couple of button on my panel for "Zoom in" and "Zoom Out" but no functionality, sorry for the syntax i deleted the code before this post trying to do it from memory, after i double clicked the button it gave me the
private sub handles button click
private sub handles button click
then
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I'm experimenting with the various graphics, bitmap and image functions of vb.net 2010, with the aim of being able to create an image processing tutorial program for my Physics AS group. Currently, I'm trying to zoom in to an image so that individual pixels are clearly visible. The below code shows what I'm doing.
My problem is that the zoomed in image always comes out blurred; the individual square pixels are not visible. I presume this is because as the DrawImage method resizes the image, it re-samples the image in some way. Is there a way of resizing the image while retaining the pixels as in the original image, so that individual pixels are visible? I've tried several other methods, including drawing to a picturebox control and then resizing the picturebox with the size mode set to zoom or stretch... this results in the same blurred image.
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I'm trying to make a picture viewer, with which users can see the actual size and fit screen size of the picture. They can also zoom in and zoom out and control the view with scroll box. If its not possible by picture box then what other control should I use?
View 2 RepliesI need serious advice here please. I use Visual Basic Graphics Programming by Rod Stephens as a reference, and I have visited his site vb-helper.com to try some of his tutorials. I tried the scribble application and it's working out fine (you can download the snippet from his site).
What I have trouble with is zooming in. I am not sure where to start. I would like to zoom in to x2, x3 and etc. of the bitmap I am working on and I would like to be able to continue to edit the bitmap. This would mean that I have a larger pixel brush under the mouse cursor, to lay down pixels. So a x2 zoom would mean a 2 x 2 pixel.
Has someone done this. Do you have a reference I can use for this. This kind of editing is standard in almost every paint package. Even Microsoft Paint, but there is not too much basic information on how it fits together in code for vb .net. So I am looking for someone to point me in the right direction. As I said, I am using the scribble application as a base, so here is the link. [URL]..
how can i zoom an image inside a picturebox? and i also want to know how can i make a picture inside the picturebox draggable while at the same time, it can be zoomed in and out.
my goal is to crop an image inside the picturebox and i can zoom and drag the image inside if necessary
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"I have noticed that even though the pictureBox's image seems to be zoomed, it is cut to keep the 96x128 rect. But I don't want it to be zoomed...
View 6 RepliesI've found an example of what I'm trying to do. The form will have 2 picture boxes. The first will be the original image. The second will have the zoomed image. Once I move my mouse over the first image, it must display a zoomed image in picturebox 2. I've attached the code that I found (written in C#) of what I'm trying to do. I've converted the code for me to VB. I want my first picturebox to be smaller than my second one. And the attached example shows that the first picturebox is bigger than the second one. I've never tried something like this, or drawing images etc. Just resize the 1st picturebox to be smaller that the second one, move with your mouse over the first one, and will see what I mean. I don't want to click on the image to have it zoomed or use the mouse wheel. Just want to hover over the image and display the zoomed version..
View 2 RepliesIn my vb.net project, I use zedgraph to draw figures. I find that the following properties work well to zoom figure on the center of mouse.
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In VB2005 GDI+, it's not too difficult to get zooming and panning working together, or rotating and panning. But I am finding it very difficult to get all three functions working in coordinatioin. The code below is the nearest I have reached so far. It's a working example on a standard Windows Form, but please supply your own image. The user can drag the image with the left mouse button, and toggle wheel zooming or rotating by tapping the space bar. Both zooming and rotating work. But the stationary centre of zooming or rotating (marked by a red cross in the example) remains relative to the image.
View 1 RepliesIm making a simple image editor and I added Zooming and Drawing with mouse position like a pencil. My problem is When I zoom the image and try to draw on it, everything becomes offset and the lines i drew are not even close to the mouse. Here is My code ( Just add a button1 and Picturebox1 with an image)
Public Class Form1
Dim pen1 As Pen
Dim x1, y1, x2, y2 As Integer
Dim gr As Graphics
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How do you set focus to a specific control in a datagridview row after clicking the edit button? I'm able to do it for a new row when the grid is binding, but not for an existing row. The control doesn't seem to exist yet.[code]
View 1 RepliesMy work dropped a vb.net program in my lap that I need to modify. Die vb. Anyway, I work in Netbeans and can't find a module that will allow for syntax highlighting of vb. Is there a creative solution out there for this that doesn't involve using a different IDE?
View 1 RepliesI have a form which contains a populated datagridview and I have a button that calls a second form in which I want to be able to add additional rows to the first form's rows.My form2 has about 10 text boxes which the user will use to add columns in a new row...How can I capture the 10 textbox's information and add a row with 10 columns to display the textbox's info?
View 3 RepliesI want to fetch data from sql and use them to make a new data I really like to store the records in variables and maybe do some operations on some of them , but the main point is to update three tables in ways that are not the same,that means I need the raw data !
View 15 RepliesI'm just familiarising myself to edit registry in VB. I am having a problem with changing a value in the HKEY_LOCAL_MACHINE key. When ever I change a value at runtime it always assumes that I am going in the "Wow6432Node" key, even though I don't put that in the parenthesis. Example:
My.Computer.Registry.SetValue("HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerAdvancedFolderHiddenSHOWALL", "CheckedValue", 1) and it doesn't change the value in the string above, but changes it as if I have put
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I'm working on a piece of code at the moment that uses an older style DataGrid to allow the user to enter information into the table. It already has an add and delete button. Currently the user enters information into 3 textboxes that are in the footer, and the other rows use labels to display the information.
Essentially what I am wanting to do is take the line that the user has clicked the edit button on, and move the text from there in to the footer (deleteing the row that it was displayed on) so the user can make changes and then click the add button again. At the moment I have tried using FindControls to find the textbox and setting the text that way but it doesnt like it.
I have a pretty simple question I was hoping someone could help me with, there are two text files - first is C:Test1.txt and the other C:Test2.txt.C:Test1.txt data consists of, the column is separated by a space (" ")
Data Data
Data Data
Data Data
C:Test2.txt data consists of
Data
Data
Data
The fields in Test2 Column 1 are the fields in Column 1 Test1, what I'm trying to do is add the matching fields from Test1. So for example:
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I have this 40 mb (game) file.The only way to change certain lines in it, is using hex editing software.For my program, I need to change a certain texture in this file.But when I use a streamreader in combination with a streamwriter, the resulting file is a lot smaller and when I load it, the game crashes.How can I hex-edit and replace a certain string in this file?(I use visual basic .net express edition 2008)
View 9 RepliesSo what I'm wanting to do is to pretty much hack a game. I was wanting to know if I can hex edit a game using Visual Basic by using String.Split? Idk if it can be done and I don't wanna waste my time on it if it can't be done.
View 10 RepliesI was wondering - How would i edit a .exe's offset's, like a 4byte offset with the int of 5000, and changing the int to 10000.
View 3 RepliesI would like to know a way (of course I want to know the best way) to edit a csv file, preferably without having to read the original and write the results to a new one.
Example 1: I want to split the contents of a column into two columns 123abc into 123, abc
Example 2: I want to remove letters from the beginning of a column AB123 into 123
Clarification: I do not need help solving my examples; I just need to be pointed in the right direction of reading and editing the same file.Here is a code example of using a temporary file that seems to me is too slow
Dim currentLine as string()
tempFile.AutoFlush = True
Do Until origFile.EndOfData
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i've continued making my Program and wanted to make an Control Panel for my Server.
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This happens ONLY on editRow in dataTable. >>in my class I set my property to format shortDate.. In debug I check the property as it beginsEdit and endsEdit its formatted as shortDate... BUT its changed to longDate in my dataTable. (dataTable edit class change to longDate?)[code]...
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