Wpf - Programmatically Draw And Show / Copy / Save An Image?
Sep 3, 2011
I'd like to draw an image (like a bar code) pixel-by-pixel in a Visual Basic .NET WPF Application and ...
show the image in my UI
copy it to the clipboard
save it as a .BMP-File.
It should also be possible to add Paint-like editing features later.What is a good approach? System.Drawing.Bitmap works internally, but the only way I could show it is to convert it to an ImageSource and show it inside an Image control. Is there any better way?
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Nov 16, 2009
I need to create a function which accepts a single value of integer which specifies the width/height of the resulting image, which will only have a single black pixel in the upper left corner and the rest being transparent and saved as a gif file.
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Oct 21, 2011
Just wondering how if it is possible to draw onto something, with GDI+, that can then be saved to some kind of vector format?
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Sep 4, 2010
I'm making a front end to dvdauthor.I have a picturebox which holds the menu background. In order to draw a textbutton on the background image I store the image in a hidden picturebox. So the text doesn't get drawn to the visible background.
Dim ctl As Control
For Each c As Control In pbMenu1.Controls
If c.GetType() Is GetType(TextBtn) Then[code]...
This works the first time. But if I hit save again it writes the text to the background image on pbMenu1.
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Jan 27, 2010
I'm currently working on a VB 2008 course of Michael Halverson, and I'm stuck at an assignment where I'll have to expand a previous wood order program so customers can add woodcuts to their orderIn the newer program a customer can define 4 coordinates (x & y for startpoint and x & y for endingpoint), after clicking on the button 'Next cut' a line will be drawn on screen (in PanelCuts) with a maximum of ten lines. After finishing, the coordinates must be saved in the order.txt, and when the client re-select the order in the main order program, they can review and adjust / remove the already specified cuts.Right now I'm at the point that the you can enter the coordinates, and the line will be drawn.
- What's the best way to store the submitted cuts, in a Label? array? or something else?
- When the form reloads, how to displays all previous made cuts? Can i count the numer of cuts and with For i = 1 to combined with SelectedItem. Split() ? [code]
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May 6, 2010
draw an image on form using an image in resources within VS2008VB instead of using C:userspublicimages
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Jan 9, 2012
I add a Image Control and a RichTextBox control to a from. And I want to darw a image by my codes.And then insert the image into a RichTextBox.
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Jun 6, 2011
i am trying to draw a iamge in an mspaint control, and then put that image into a richtextbox but it will ask for save file and file has been saved i want to show image in richtextbox as soon as click on save file in dialog window.
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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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Sep 4, 2011
I want to draw an image onto another image object but use an alphamask specified from another image that is grayscale.
I am drawing an animation manually so don't want to do this pixel by pixel as this would be extremely inefficient.
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Jul 8, 2010
I programmed with Bitblt in VB6 for about 5-6 years and now I switched to DirectX and VB.net. When I would make games in VB6, I would draw out the entire level into layers that were saved into memory on DC's.In DirectX however, I'm looking for the equivalent of that but cant find any examples around.I use a viewport system to follow the player along in the map, I copy only what is in the viewport over to the users screen.Image attached to better visualize what i mean.
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Jan 27, 2010
I'm having a image ".bmp" in my asp.net page. I should be able to draw over that image. How can i do this?(Similar to drawing in Paint)
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Dec 17, 2009
I have a picture box. The user can click with in the picture box. Anywhere they click it will draw another Ellipse. The problem is the edges of the picture boxes cut the image of the newly drawn ellipse. Is there a way draw the new ellipse so the user can see the entire thing?
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May 7, 2012
I have programmatically created a new project from a windows application. I now want to programmatically add a form to this project that already has some data bound controls on it.
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Nov 29, 2011
I need to make a small application in asp.net where user could draw a small drawing and that drawing is saved in the database for later review.
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May 24, 2011
need to draw text (already writen) but the promblem is i need to save it after i wrote it as a .jpg i got the save feature complete but the text doesnt show up what do i need 2 change or do?
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May 14, 2009
I have a problem with my code
after I click undo I can't draw on the image and I don't know why
this is my code
Imports System.Drawing.Graphics
Imports System.Drawing.Bitmap
Imports System.Drawing
[Code]......
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Dec 5, 2011
does anyone know how to connect points of a label? Let's say I have a label and start the label at point 0,0. Aterwards, the points jumps to 3,6 ... then to 6, 9 dynamically based on incrementing 3. How do I show for example, the path it takes to let users know where they are? for example, 0,0 --> 0,3 --> 3,6 --> 6,9 --> etc. I've tried with drawline but unfortunately, this leaves my lable in a mess.
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Sep 16, 2009
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]...
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Jan 1, 2011
I'm trying to develop a new feature for our vb.net order entry system. At the moment I provide an assisted paypal login which loops through transactions and copies the transactions. My program then looks at this data and copies it into text boxes. The operator then approves and saves the record.
EDIT: I need to see the transaction in PayPal.So my code uses IHTMLFormElement and loops round form elements and adds values. However I only really use this to log in to paypal. See my code...
Dim theObject As Object = Nothing
theObject = "https://www.paypal.com/cgi-bin/webscr?cmd=_login-run"
WebBrowPayPal.AxWebBrowser1.Navigate2(theObject)
[code]....
Which is the history page, which allows you to search on the paypal transaction id.Unfortunately you need to click on 'find a transaction' which then uses some javascript to shows the post fields. So the problem is that the fields I need to use are hidden.
How can I click on this javascript link in code ?
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Feb 22, 2009
Now everybody knows that creating GUIs that have lots of repeated elements that are evenly spaced by hand is for chumps; all the cool kids use loops and add them at runtime. Given that being one of the cool kids is one of my top priorities I decided to give this a go - as my current project involves creating a grid of check boxes and then chunking them together under one event handler. In my experience - an nice effective way of dealing with grid like structures (2D arrays if you will) is to use nested loops such as:
For intY = 0 To 9
For intX = 0 To 9
Dim chk As New CheckBox
[code].....
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Oct 21, 2010
I get Value does not fall within the expected range message when I tried[code]...
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Nov 11, 2011
I'm trying to draw a 400x400 px image to a 400x400 form that I made. What I'm doing is:
Graphics.DrawImage Method (Image, 0, 0, 400, 400) 0, 0, 400, 400, ...
But when I run the form, the image seems to stretch slightly upon the y-axis, the x-axis seems to be working correctly.
This was what I was doing before (stretching the old smaller images to fit the size)
... (Image, 0, 0, 264, 231) 0, 0, 400, 400, ...
or something like that. Now that I'm trying to do it the correct way, I can't seem to get it to work properly.
Edit: I wonder if using a simpler verson of Graphics.DrawImage would work?
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Mar 23, 2012
I was wondering how I could draw an image using GDI, zoomed, like a PictureBox set on Zoom (SizeMode). How does that algorithm work?
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Apr 1, 2011
draw an image in my picturebox. Is it possible to give it an opacity attribute? I have been looking at the other versions of DrawImage but couldn't find such thing!
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Oct 30, 2010
trying to Draw an image to a picturebox using DrawImage(image,0,0, picturebox.width, picturebox.height).I know I have to use the PAINT argument but still having a little problem getting it to work.how to start the code?
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Nov 1, 2009
I have a very annoying problem, I am trying to draw an image with the Graphics class but when I do DrawImage, it automatically scales it up! heres some example code
graphics.DrawImage(My.Resources.TestImage, 20, 20)
PictureBox1.Image = My.Resources.TestImage
The picture box image is the correct size whereas the graphics drawn verison is too big!
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Oct 28, 2009
Can i draw a image outside my form?
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Feb 17, 2010
I'm using a class which lets me retrieve the a System.Drawing.Image by specifying a Sprite ID... I'm wondeirng, after I get the image, how do I draw it onto the form? Heres what I got so far
Dim img As Image = Util.SpriteReader.GetSpriteImage(3367)
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Aug 24, 2010
Ok I made a gif image with a transparent background, but when I draw the image to another, the background is white.
I've looked on google, but all the comes up is how to make a gif file have a transparent background, not use an existing one.
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