Hi All I am new to 3D modelling in VISUAL .NET C#.I am planning to draw the entire roof (showing the roof material, roof angle, roof shape,ceiling shape, ceiling material) of the house and planning to use OpenGL. Please let me know whether I can use opengl with C# and also how to add referanc...more >>

I am creating a custom control, "Graph", which will draw a set of graphs of data on an (x,y) coordinate system. The max and min values of both x and y and determined on the fly based on the specific range of data being plotted. I am (for my first time) using GDI+ to do the World coordinates to...more >>

I wanted to see if a texts fits into a label and I created this code: With lblOptionC1 Dim gfx As Graphics = picMainScreen.CreateGraphics Dim FontSize As New System.Drawing.SizeF FontSize = gfx.MeasureString(.Text, .Font) But the line "Dim FontSize..." results in an error which sa...more >>

Hello all I have a ASPX file called scaleimage.aspx that scales my images down to a given width. This page is used very much in web project I am working on. But due to the large size of the images I randomly get [X] images (error) in Internet Explorer. When I open one individual image at th...more >>

I've started experimenting with coordinate systems and created a very simple form with the following paint event. private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { Pen bluePen = new Pen(Color.Blue,1/e.Graphics.DpiX); e.Graphics.PageUnit ...more >>

Hi. Whats the easiest way to draw a rectangle with curved corners Eric...more >>

Does anybody knows how to rotate about an origin with gdi+. I got a piece of code that rotates, however it rotates everywhere except the origin. g.RotateTransform(10); g.DrawRectangle(pn, 10, 10,200,40); The above code works except that it doesn't rotate about the origin. Can somebody plea...more >>

I have a series of PictureBox controls that are created by my Windows Forms class. The PictureBox.Image is repeatedly assigned an image in a thread while the containing window is displayed. The image refreshes as expected and everything seems to work ok. When the window is closed however, I ...more >>

I have some ASP.NET code that I use in a ASP 3.0 photo gallery application to create dynamic thumbnails. So that people whos servers don't have a classic asp image component can still have true thumbnails. I call the aspx page from .asp pages with a <IMG> tag anyway... it works pretty good ...more >>

I know that using an Image object, metadata can be accessed through the PropertyItems array. My problem is that I am trying to index a large number of large images, and having to load the image every time I need to access its metadata starts to take its toll on memory, as well as not being the ...more >>

In explorer you can change the view setting to thumbnails, and you get thumbnails even from movies. I want to do the same from asp.net. I want to create 'on the fly' thumbnails from some mpg movies, but I don't know if that's possible from asp.net. Who can help me with this? ...more >>

Dear Sirs, I make a gobelin creating program just for fun. The idea is simple. I have an image with several thousand colors and a DMC (the best crewels for gobelin embroydering) color palette whic contains 453 colors. My question is: How to convert each color from the original image to the mo...more >>

(This question might pertain as much to GDI+ as to drawing in the .NET drawing framework.) I'm working in C#, drawing to a Graphics object initialized by a handle of an enhanced metafile. When filling a path with a brush created by SolidBrush sb = new SolidBrush(FillColor); g.FillPat...more >>

The API cal StringFormat.SetMeasurableCharacterRanges(CharacterRange[] will throw an Overflow exception if the CharacterRange[] parameter is greater than 32 elements long. For instance, the following code will throw an exception CharacterRange[] ranges = new CharacterRange[33]; // anything > 3...more >>

Hi, I am trying to recieve an image from a digital camera. I get = back a pointer to the image. When ever I try to use bitmap.fromhbitmap = I get an generic gdi+ error. =20 Ken...more >>

I have written a client library and custom WinForms Control to connect to a network host that sends graphic information, which is then drawn by the client. Basically the server sends pixel colour values over the wire as byte values (i.e., the pixel RGB colour values are sent as 8, 16, or 32 bits). ...more >>

Hi all I'm using vb.net I want to draw text using the Rectangle object, but I want to draw lots of items of text at lots of different places on the screen. I don't want to create lots of rectangle objects though. Can I just instantiate one rectangle object and change its properties (x,y,width, he...more >>

I have created a UserControl, that has some fairly intensive graphics operations, although not what I would think as being too intensive. I basically have a multi line text display that flips between different text messages. When it changes between text messages there is a noticable flicker as it pa...more >>

I'm trying to use a GraphicsPath to do a hit test on a line, but calling Widen seems to always round up to the next integral size. That may be fine when drawing with PageUnit == Pixel, but it is horrible when using PageUnit == Inch. Create a new C# Windows Application, and paste the code belo...more >>

Imagine a discrete 2D space of any size. Say, you have a 100x100 pixels (.net) panel and you have discrete cells of 10x10 pixels. Thinking e.g. of the game of life. I would like to draw a line in this discrete space, but it can't be smooth, it has to be aliased or in a block-form corresponding t...more >>

I need to implement some kind of panel where the user can put rectangles on it, move them around and resize them. Is there an API for that or do I have to code the whole stuff by myself? I don't know anything about drag&drop yet. -- cody [Freeware, Games and Humor] www.deutronium.de.vu |...more >>

Hi all! I want to create animated gif from JPEGs in Smartphone 2003 using .NET Compact Framework. How can I do so? I have been trying to look for answers for days and still can't find anything. Please help~ ...more >>

Hi all- How would I go about creating a gradient brush that has more than 2 colors? ...more >>

Is there an easy way to draw a text on a path? Specifically if I have a curve and I want this text to go along that curve, how can I do that? Thanks....more >>

Hello, I am getting this when trying to load a memory stream and edit it. Here is the code: Imports System.Data Imports System.Data.SqlClient Imports System.Configuration Imports System.web Imports System.Drawing Imports System.Drawing.Imaging Imports System.Drawing.Text Public Cla...more >>

Could someone tell me what this constructor is for? (preferably with a code sample) Initializes a new instance of the Bitmap class from a specified resource. [Visual Basic] Public Sub New(Type, String) Jonathan ...more >>

Hello, How do I load a Byte Array Into a memory Stream? Thanks in advance for all you help and time, Jack ...more >>

I am sure it is something simple but for the life of me I can't get a PrintDocument to print correctly at the printer. The print preview dialog doesn't have any problems with the margins and displays the pages to be printed perfectly. However when printing to a HP laser jet, the right margin is ...more >>

Hello all: I'm building my first non-rectangular control, and so far, everything is going pretty well. I have one fine tuning point that I would like a hint for: This control is a rounded button, and I want to support all 9 text alignments for the Winform TextAlign property. I'm having ju...more >>

Hi , How do we create gantt chart in asp.net?. Any code samples or url will help. I don't want to use any third party components. regards gdc ...more >>

Hi, When I create a new Pen and take a look at the DashPattern property it reads <System.OutOfMemoryException>. Which is a problem because I need to loop round an array of pens checking their DashPattern array lengths. I can't even test the DashPattern property to see if it's null. I ...more >>

Hi All, I want to draw roof shapes in my program using user entered roof angle, height, width, length etc. I develop this application in C#. I'm new to drawing and need some guidance to start off. I also want to see the possibility of drawing 3D models in C#. where shoudl i start? what methods and ...more >>

Hi. I am using vs.net to create some icons for my applications. When creating these icons is it possible to copy the image from one of the vs.net toolbar buttons and paste it in my new icon file? I want to create an icon that is slightly different from one of the vs.net icons. Thank you. ...more >>

When overriding OnPaint to do custom drawing, how can I get the invalid regions of the control to paint? -- cody [Freeware, Games and Humor] www.deutronium.de.vu || www.deutronium.tk ...more >>

Hi I want to Expose a Font Property of my Control to the developper. when i do this the normal Font selection dialogue box appears which works fine, but the problem is there you get to select the Font size as well, which has no relevance to my Control. so can someone please tell me a way to ge...more >>

Hello, I recently started development in Vb.net. I am about to finish a product in VB.net Database Applicatio, Sql Server as Backend. I read little about wireless technology and PDAs. Is it true that one can access VB.net forms/applications running on Server, using PDAs ? If so please te...more >>

I need to scale the size of a barcode that I'm printing along the vertical axis. When I apply the ScaleTransform method to the Graphics object the result it the barcode is moved instead of resized. I am using the following code to achieve this: [VB.NET] deviceContext_.ResetTransform() device...more >>

Hi, When I display a picture and load a bitmap with whites in it (in fact, a big white area), and I compare thet white with the full white of the panel behind it, I see that the bitmap is not exactly white. Is there some color conversion in the PDA device ? How can I force a full white pixel i...more >>

I'm trying to apply color scheme to the forms in C# .NET. I couldn't find any solution for tabs and title bars. It doesn't display the bgcolors that are applied to these controls. --- Posted using Wimdows.net NntpNews Component - Posted from .NET's Largest Community Website: http://www.dotnetjun...more >>

Hello I'm Hannes on a form with GDI+ .DrawRectangle()-method drawn Rows I want to synchronize th vertical scrollbars with the rectangles. Each time I use the scroll-slider a whole rectangle should be move and not the predefined scroll-units. The rows contain e.g. one image per row or text-blocks....more >>

who can help me?thx! ...more >>

Hi I have imageList and I want to convert imageList.Images[2] to System.Drawing.Icon How can I accomplish that? ...more >>

Imagine a gradient of 2 colors, say white thru Systemcolors.ActiveCaption. Is there an algorithm that will give me the color part way along that gradient What I want to do is lighten Systemcolors.ActiveCaption (or any other color) by a given amount Thank you...more >>

Has anyone figured out how to print collated pages from C# ? (two sets of prints with the pages ordered 1 2 3, 1 2 3 instead of the default ording 1 1, 2 2, 3 3). I tried using the PrinterSettings.Collate property, but it does not seem to have any effect whatsoever. We've tested both .net fra...more >>

Hello, I am tring to write text accross an image from a SQL Database. If any one has an example of this please let me know. In VB.NET if possable. Thanks in advance for you help and time, Jack ...more >>

I'm doing a diagramming product of sorts that will be comprised of "nodes". These nodes can be square, have rounded corners, etc. Within these nodes, there can be either text (rich text) or an image. I had intended on using an owner-drawn control to accomplish the outline and add a rich text b...more >>

My Q is related to "How do I manipulate the graphics on screen?" tutorial on http://www.bobpowell.net/gdiplus_faq.htm. I programmed a similar user interface but i can't simulate scrolling on the panel when the figures on that panel is dragged out of screen. Because usually windows handles thing...more >>

Is there a method which provides a functionality like Flood-fill, that is fill a region bounded with a specific color, just like the fill tool in MSPaint. -- cody [Freeware, Games and Humor] www.deutronium.de.vu || www.deutronium.tk ...more >>

Hi, What is the best way to capture images from a FireWire DCAM camera? Is there any support for the DCAM protocol anywhere for C# on Windows 2000? If I understand it right TWAIN = legacy and not to be used, STI is the old driver model and WIA is the new model but only on XP and later. ...more >>

Hi All, I have some doubts regarding Metafile class in .Net Framework. I tried to save the metafile object to a disk file as shown below: _metafile.Save("C:\\delete\\Test.emf", System.Drawing.Imaging.ImageFormat.Emf); if I open the saved EMF file in notepad, the header values indicate tha...more >>