hi, suppose I have a .gif with a cyan-colored background. I'd like this ..gif to appear as if it had a transparent background. using Visual Studio...

A_StClaire_@hotmail.com

12-05-2006 05:11 AM
Bob Powell [MVP]

I have a situation when user uploads image with lower resolution (less than or greater than 300 DPI), I need to warn him message, to do that I need...

Subbu

12-04-2006 05:11 AM
Bob Powell [MVP]

Take a look at the following sample code....the part which renders using a DashPattern is very very slow. The same rendering using a Solid pen is...

Patrick van Dijk

12-04-2006 03:50 AM
PT

I have a need to load a PNG that is 8bpp indexed, overlay half of the graphic with another PNG that is 8bpp indexed, and then save the new image to a...

Jeff Johnson

12-02-2006 05:50 AM
Bob Powell [MVP]

"Dale" <dale0973 (AT) nospam (DOT) nospam> wrote I use my own clone function by creating a bitmap if 24 or 32 bits and using the graphics object to...

Jeff

12-01-2006 07:05 PM
Michael C

Help. I don't understand why this code isn't working. Basically, I'm grabbing a portion of a form as an image using BitBlt and using DrawImage...

Steve Long

12-01-2006 01:47 PM
Steve Long

Hi I have a bitmap which contain several images that represent an image sequence if animated. I guess what I would like to do (and can do) is load...

Craig

11-30-2006 05:41 PM
Bob Powell [MVP]

I had a customer report an exception which seemed to be thrown by the Font ctor when the font was missing (my code tried to create a "Verdana"...

DrawMusic

11-30-2006 04:29 AM
PT

Hi am Narendar.Am working on graphics in J#.net.I want to draw a single line using console application in J#.net. Please any body can provide a code...

narendar.nallapu@gmail.com

11-28-2006 06:39 PM
Bart

I see the following problem reported a number of times but no answers. I am facing the exact same problem. Anybody has solved the...

kingkong88@gmail.com

11-28-2006 01:50 AM
kingkong88@gmail.com

This is driving me mad. I have two functions, the first of which (ProcessBitmap) calls the second (Blur) and passes in a bitmap as one of...

Mark Raishbrook

11-27-2006 07:28 AM
Mark Raishbrook

Hi I have now spent the better part of two days trying to solve this problem, and really hope somebody here can help me. When i resize an image,...

Klaus Jensen

11-25-2006 05:57 AM
Klaus Jensen

It can't hurt but what's the problem with insisting on a Framework 2 install??? -- Bob Powell Visual C#, System.Drawing Ramuseco Limited .NET...

Bob Powell [MVP]

11-23-2006 12:15 PM
Bob Powell [MVP]

Hi am Narendar.Am working on graphics in J#.net.I want to draw a single line using console application in J#.net. Please any body can provide a code...

narendar.nalappu@wipro.com

11-23-2006 12:01 AM
narendar.nalappu@wipro.com

Hi am Narendar.Am working on graphics in J#.net.I want to draw a single line using console application in J#.net. Please any body can provide a code...

narendar.nallapu@gmail.com

11-22-2006 11:57 PM
narendar.nallapu@gmail.com

Hi, I have a question... I'm trying to learn how to draw charts using GDI+, especially pie charts, but would do bar charts afterward... I know there...

ThunderMusic

11-22-2006 02:39 PM
contact@softwaresigloxxi.com

I have a custom button control that draws a rounded rectangle. When clicking the button, it gets smaller by a pixel on each side. In the OnPaint...

thatsastounding@gmail.com

11-21-2006 03:44 PM
thatsastounding@gmail.com

Hi, I still can't seem to find a way to print (ultra)condensed fonts On the ..NET platform (there was no such problem in java, where I...

k

11-21-2006 01:59 PM
k

(this is a "scaled down" version of a previous post to hopefully attract more responses) Scenario: 1) I have a class that renders graphics and text...

Jeff

11-21-2006 04:46 AM
Bob Powell [MVP]

Hi, my prob is that i have to print text in textbox with leaving some space from both left and right boundries. and that space is to be calculated at...

sharma.lalitm@gmail.com

11-21-2006 04:43 AM
Bob Powell [MVP]

Hi, How do I retrieve my application icon (set in the project properties) through code (using Framework 1.1). Using Icon constructors is possible...

Ajak

11-19-2006 11:16 PM
Ajak

I'm trying to grab a snap-shot bitmap of a control, but the result, both put into a picturebox and into a file is black and white. Are there any...

Vic Metcalfe

11-19-2006 06:05 PM
Vic Metcalfe

I am doing experiments with the scan pass to test transparency of a rectangular portion of a bitmap I must be doing something wrong: 1. On the...

pamela fluente

11-18-2006 07:22 AM
Joergen Bech

In a fast animation done by repeatedly displaying a bitmap on a picture box ... what is better: 1. to recreate, each time, the bitmap and graphics...

pamela fluente

11-17-2006 11:34 AM
Bob Powell [MVP]

Before printing I create an instance of PrintDocument as Follow (beware, pseudo code) //============================== PaperSize ps = new...

Lloyd Dupont

11-16-2006 10:23 PM
Lloyd Dupont

In a recent post I asked the question how to draw in greyscale with c# and CreateDibSection was suggested. It was a good suggestion but, I'm having...

chapmjw

11-16-2006 02:14 PM
Michael Phillips, Jr.

Hi i am saving different type(BMP,JPEG,JPG,TIF,GIF,PNG) of images into a single PNG image by using "System.Drawing.Bitmap" and that bitmap saving as...

koti

11-16-2006 06:06 AM
Michael C

Hi i am saving different type(BMP,JPEG,JPG,TIF,GIF,PNG) of images into a single PNG image by using "System.Drawing.Bitmap" and that bitmap saving as...

koti

11-16-2006 01:15 AM
koti

Recently I've been investigating performance problems with painting in one of my controls. I've ended up with a trivial sample which illustrates...

JakubS

11-15-2006 03:20 PM
Bob Powell [MVP]

Hey guys, I was trying to create a LinearGradientBrush that will have the same start and end colors but have the alpha value of the first color be 0...

Flack

11-15-2006 03:04 PM
Flack

Hi, I have a VB.NET reporting application that produces graphical reports to screen which then need to be printed on a remote postscript printer at...

Jason

11-15-2006 11:38 AM
pamela fluente

Hi all! Let's say I have a Rectange(10,10,50,50). Get its bounds are simple: it is the same rectangle :) Now, let's say I apply a transformation to...

Fabio

11-15-2006 02:53 AM
Joergen Bech

I've seen the various posts about setting HasMorePages to True, and that makes perfect sense. However, my situation is a bit different. I have...

Jeff

11-14-2006 04:17 PM
Jeff

That is: Always choose double *over* float. Integer still has its uses :) /Joergen Bech

henning.friese@gmx.de

11-14-2006 02:59 AM
Joergen Bech

Hi I have a bitmap 32bpp PARGB. Given any rectangle (any portion of the bitmap) I need to test if the rectangle is transparent. How can I do this...

pamela fluente

11-14-2006 02:51 AM
Joergen Bech

Hello Guyz We are planning to simulate the front panel of a Car Radio in PC. We want to use it for demo purposes. Especially in situations where we...

Hari Shankar

11-13-2006 05:30 PM
Michael C

Hi, anyone knows of any .net library which can be used for Tiff handling, rotation etc ? I need to load tiff in byte level..and not load the whole...

Roderick.Buhagiar@gmail.com

11-13-2006 09:57 AM
Roderick.Buhagiar@gmail.com

Scenario: I'm creating controls which need to be able to render themselves to a passed-in device context handle. These controls shouldn't care what...

Jeff

11-13-2006 07:47 AM
Fabio Z

I have managed to use a ColorMatrix to draw semi-transparent images to a buffer and draw the buffer to the window but any pixels that are black...

Christopher

11-12-2006 05:47 PM
Michael C

I'm trying to write a program like Paint that draws to a Metafile instead of a bitmap. I can create the Metafile, but the second time I try to draw...

mccoyn

11-12-2006 09:26 AM
mccoyn

I'm using the various drawing tools to render graphics onto a user control (DrawRectangle, DrawImage, etc). The graphics render just fine. However,...

Jeff

11-10-2006 02:12 PM
Bob Powell [MVP]

Hello NG, I'm having a hard time saving a multitiff without LZW-Compression. I've tried the following: private static void...

henning.friese@gmx.de

11-10-2006 05:58 AM
henning.friese@gmx.de

I'm making plans to develop an 2D interactive vector graphics library. It will be used to render basic graphics primitives (lines, polygons,...)....

Tomaz Koritnik

11-09-2006 05:55 PM
Shawn B.

I must be missing something obvious, so apologies in advance; I need to set a pixel in a bitmap to a color I'm creating by hand. How can I do this? ...

Jim Bancroft

11-09-2006 01:10 PM
Jim Bancroft

Hi, I have this weird problem displaying a resized image read from the database. When the page is loaded, the image colors appear inverted (eg:...

Ajak

11-09-2006 07:36 AM
Ajak

i wonder what happen if we use LockBits: BitmapData data = tmp.LockBits(new Rectangle(bx, by, width, height), ImageLockMode.ReadOnly,...

Le Minh

11-09-2006 05:43 AM
Michael C

How can I blend two colors together in a specified ratio to get a third color?

John Smith

11-08-2006 03:47 PM
John Smith

Can anyone recommend a good book or website on creating graphics with GDI+ ? I'm thinking about answers to questions like "If you want to...

John Smith

11-08-2006 03:45 PM
John Smith

Hey ASP.NET 2.0 I created an image in PhotoShop XI and added it to my asp.net 2.0 project. In my website project I have this...

Jeff

11-08-2006 06:30 AM
Joergen Bech

Does anybody know of any color reduction algorithm or library I can use with .Net? I need to do high-quality color reduction to a few colors,...

Joergen Bech

11-08-2006 04:21 AM
Joergen Bech