There are a couple of things in the framework that don't handle nicely with DPI changes (well lots of things but two that I have noticed) #1 Background graphics on forms tile in large fonts instead of drawing the graphic larger. #2 All of the sizing functions are off when looking at graphics...more >>

I first take a mult-page tiff and add some text to it, and when i save it only saves the first page, when i try to go back and add the extra pages or save the new file as mult-page it craps out on me - here is the code Imports System.IO Imports System.Drawing Imports System.Drawing.Image 'Fr...more >>

Hi, I was browsing this website http://www.dotnetcharting.com/gallery/view.aspx?img=10 and I was asking myself: How can those bars get that nice candy-like shading effect, when only 1 color (see source under the chart) is given? To fill 1 block (red, green, yellow or blue), I tried using a Lin...more >>

I am seeing inconsistent drawing behavior when calling Graphics.DrawLines() with a pen created from a non solid brush vs. a Graphics.Drawlines() call with a pen created from a solid brush. The line between the same points is drawn differently. To see this, create a windows forms project in VS.NE...more >>

Hi, Does anyone knows how to handle painting of Tabcontrol??! I've override OnPaint and WndProc ( with m.Msg==WM_NCPAINT) functions, but doesn't work! Thanks, Fatih BOY ...more >>

Is there any way from managed code to determine the bit depth of a given display? We need to do this from Internet deployed controls, so interop is not an option. ...more >>

I am trying to paint a flatstyle for the DateTimePicker...i am able to draw a rectangle inside the box, but the graphics object's bounds seem to start just inside the border of the control...so how can I expand the graphics object drawing region so I can draw my rectangle like 2 pixles larger and...more >>

I have created a round form, using the Graphics.DrawEllipse () method in the Pain event of the form. This works fine, but the edges of my circle are very jagged, not smooth, and looks pretty bad. Is there a way to create a clean smooth circle edge in GDI+? I've played with the Smoothin...more >>

Hi! I've build a control that bases on the Signature Capture Sample from Microsoft(load bitmap, print on bitmap, paint on control). Works pretty fine. But now I want to copy a part of the displayed image to itself at another position. For example: Bitmap is ca. 100x100. I printed text on...more >>

Hi Is that true that this isVisible method is incredible slow? Seems that my app is much slower with only this added as a condition to draw something Crirus ...more >>

Hello I draw a bitmap pixel by pixel There is a way to set region on the bitmap where the setpixel take effect and regions where not? Thanks, Crirus ...more >>

Hi, I'm trying to select a printer in the system printers collection. I'm able to do this. However, if the printer is a network printer and happens that this printer is not on or not ready, I won't be able to know and I try to print a document I will get an error. Is there anyway that I ca...more >>

Hi, I want to fill a rectangle with a custom colour (purple-ish). however when the generated gif file is viewed the colour in the rectangle is stippled which seems to me to indicate it saved in as a low res colour. (Sample code below) What am I missing here? Do I need to work with Bitmap p...more >>

I'm working on a control that simulates a timeline and it supports "zooming" so you can drill down and get finer detail along the timeline. I accomplish this by always drawing the same tick marks starting at 0 on the x axis, but I use Graphics.ScaleTransform(zoomfactorX, 1F) to scale the entire d...more >>

I am setting PageSettings.Landscape = True in PrintPage event. I have verified its value and it still prints in Portrait. Any ideas? ...more >>

Since MS has made available the Whidbey alpha on the subscriber downloads site, are you able to talk about the new stuff yet? I also noticed some interesting new classes in the framework (such as the BufferedGraphics class). Can you give us an evaluation of the changes to the graphics classes...more >>

I had developed a user control which represents a grid format using GDI+. If the grid size increases the control size, i get scroll bar (using AutScroll feature of User Control) and am able to scroll the grid using the offset of scroll. But when I scroll the form, the grid gets a bit distorted....more >>

Hi, I am facing a problem fitting the rectangle into a panel. I am drawing a rectangle on a panel. I have co- ordinate values in mm and I need the best fit in a panel irrespective of what the values in mm are. Should I use the PageScale property or should I need to use any method to wor...more >>

Hi, how do i print to the printer from right to left with vb.net example in vb6: Printer.RightToLeft = True Printer.Print "abcd" Printer.EndDoc please send me small example thanking you in advance From: yulyos@yahoo.com ...more >>

please don't answer this without reading the entire message. I'm not asking about machinename. I am trying to figure out a way to have my remoting system deal with being behind a firewall, a NAT router or other various network devices. the problem is that when using a CAO will force the ...more >>

If I load a bitmap file using the Bitmap constructor Bitmap(filename) and afterwards try to save it (using the Bitmap.Save method) a general exception i thrown from the GDI+ kernel. I seems like the file/stream is open and for that reason can't be saved. Any suggestions (this is properly quite...more >>

Hi All, I'm trying to print two texts in the same position with different font sizes on a graphics object (say a printer or a picturebox) and I'm using the format string object to remove spaces around a character but it doesn't work. Private Sub PictureBox1_Paint(ByVal sender As Ob...more >>

How to print text from right to left, i need to print the same reports in english, hebrew and arabic. Thanks...more >>

Hi, I'am c# programer. i want to know if somebody know jow to print in windows application. It's mean that i have form with lables that present parameters from xml. i want to print this form....more >>

I am seeing inconsistent drawing behavior when calling Graphics.DrawLines() with a pen created from a non solid brush vs. a Graphics.Drawlines() call with a pen created from a solid brush. The line between the same points is drawn differently. To see this, create a windows forms project in VS.NE...more >>

Out Of Memory Exception Is occures when i run my C# Code to Draw a A menu My bee i can run the code once ot twies but after that it will give me out of memory. and the problem is that i have eangh Memory to run a .Net So if there Any one have a Suggestion Please Help Me Fast ...more >>

I would like to write a utility which takes a 1600 x 1200 jpg and adds 200 pictures of horizontal whitespace to result in 1800 x 1200. This is so that my photo processor doesn't crop out the top and bottom of my picture on a 4 x 6 print. So far I've found techniques to crop pictures and to st...more >>

The first version of NZui, an open source Zoomable User Interface has been released and is available at http://www.vermorel.com/opensource/. Zoomable interface are an alternative to the classical "click and jump" hyperlinked navigation. The objective of NZui is to provide a fluid and smooth na...more >>

I'm using DrawSting to draw variable length text to a defined region on a bitmap, which ultimately becomes a legend. For the most part it works perfectly. But the variable length of the strings is likely to give me fits some time in the future. My concern is that at some point a user will enter ...more >>

I added a file called "animals_.ttf" to my web project. I'm trying to load the font, but have not been successful. Here is what I have done so far: _Font = New Font(Server.MapPath("Animals_.ttf"), 24, FontStyle.Regular, GraphicsUnit.Pixel) I would prefer to do this without asking the w...more >>

Hi there, I am having great fun with Pointers or Handlers or whatever you want to call them in VB.NET. WHat I am attempting to do is create a .NET image by using the FreeImage library. On the site they clear say, ------------------------ How do I convert a FreeImage image to a HBITM...more >>

Hello, To get a blurred photo, many people may think of using blurring filter. And I am now using image scaling to achieve this in a quick manner. Firstly, scale down an image to very small size and then scale up to original size using DrawImage( ) and HighQualityBubic interpolation method ...more >>

Hi all PRO out there, Does any body know how to draw a Circular image or ellipse image or even star shape image base on Existing image. Any help is deeply appreciated. Have a good weekend all of you. Thanks you all so much Kate Luu ...more >>

Hi there, Excuse my ignorance, but I am crap when it comes to understanding computer graphics. I am attempting to create a plugin in for my application that uses the FreeImage graphics library, I have got the library returning what I *believe* is a handle to a DIB, how do I get this into ...more >>

I cant seem to get the encoder stuff working for my program. How can I increase the quality of the JPEG? Below is my program: <%@ Page language="vb" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Drawing.Imaging" %> <%@ Import Namespace="System.Drawing.Drawing2D" %...more >>

I have a table in sql that contains the .gif file names for a catalog. I am writing a report to see if the images are the right expected size. The problem that I am having is that when I select 3 or more rows of data in sql I get the error below, but when I select 1 or two rows the every thing w...more >>

How do I add a new PropertyItem to an image object? I tried to "New System.Drawing.Imaging.PropertyItem" But that gives me an error because New() is private? Maybe there is a better way. All I want to do is set the transparency colour of the image. Cheers Fraser ...more >>

I can't believe they didn't include an HttpBrowserCapabilities PNG property in the .NET Framework. Does anyone know which browser version first supported PNG graphics, so I can request the browser version in order to determine whether to send a PNG? Also, since I'm generating the PNG image i...more >>

Why is it that when I draw a rectangle, circle or some other shape using System.Drawing.Graphics they dispear when I resise the form, or when other windows apear in front of the one of my aplication ? Tanks...more >>

Hi there There is a way to obtain only alpha values from an image in some NET attribute clas or something? Crirus ...more >>

I'm a beginner in visual basic .net. I'm doing my first application .... I have and address in a string ( c:\photoes\1.jpg ... or c:\photoes\1.bmp ) I'd like to show the picture then i click on a buttom. Thank you. ...more >>

Hi all. I'm experimenting with VB.net for the first time. Long time VB 4-6 user. Since the pset methods seem to have been removed, as well as references to HDCs, I'm only assuming there is some way of getting pixels on the screen. My first go at it seems to be some sort of encapsuliz...more >>

Ok...I have been having problem with GDI+ for months now and can not solve a single one. Here is one scenario that is driving me NUTS Stack Trace: Error Message: Invalid parameter used. _____________________________________________ Exception: System.ArgumentException: Invalid paramete...more >>

Hello, I am using HTML image buttons and when I am trying to view them from browser they are appearing with a border. I tried using border="0" with the tag, but it is deprecated. <input border="0" src="http://aspweb.w2k.cis.ksu.edu/vivek/images/next.jpg" type="image" onclick="retur...more >>

Hello, Here is a problem: Inputs: I have a multi-page tiff image Outputs: A one page image where all pages from the original tiff are merged from left to right with blue rectangle around every page. I do not need to save the image just display it in a picture box. Many thanks......more >>

Hello I need to implement rotation... Beside this, I want to know if this can be a serious speed problem on an aplication... to choose between loading image rotated or rotating in the app. Thanks, Crirus ...more >>

I have created a custom control that draws the control's interface in the Draw image. I have associated a Tool Tip provider, but cannot get it to draw on the screen. Any ideas on what I am doing wrong? ...more >>

hi friends i want to know how to write some text vertically on the picture box in compact framework using VB.Net. i need this to write name for y-Axis on a graph which is drawn on a picture box. thanku ramakrishna ...more >>

hello- i want to set the z-order of a specific control to that of the control i clicked on minus 1. i see the bringtofront and sendtoback methods. is there anyway to get a controls z-index and set its z-index as well? thanks - fg ...more >>

Suppose we select a pen Pen blackPen = new Pen(Color.Black, 1); blackPen.EndCap=System.Drawing.Drawing2D.LineCap.ArrowAnchor; and draw a line with that pen. The Arrow (or any other Cap I tried) is drawn very very small. Practically invisible. It depends on the width of the pen....more >>