I remember seeing a demo years ago of a web technique in which it was possible to map out multiple irregularly shaped areas (hotspots? maps?) for use as links.  Is there any way a similar effect could be created in Winforms?  I already know how to create an irregularly shaped ...

I've got an application that allows the end user to draw on an image (lines,
rectangles, ellipses and freehand). The images can be pretty big, they're
taken with a 5mp camera. The drawing works but lags behind the mouse
movements, I've read some posts that suggest caching and other ...

I have a map of my local state and I have a feed I receive on a regular
basis (the feed consists of XML data that gives me geographic coordinates
that I store in my database).  We are switching to .NET and we want to make
this real time and available on the web for our remote people ...

I am using Microsoft Visual Basic .net 2002 Standard. I am coding an application which loads in data from a compressed file. One of the items in the file is a raw RGB565 bitmap, at 800x600 pixels. In a previous version of my app, I used Bitmap.SetPixel() but performance got to be ...

I'm working in a software that captures live video from an ordinary webcam.
This software has a form with a panel which is the preview window. In this
panel is show a preview of what is being captured from the webcam. I wish to
put a label inside this panel, but this label should be ...

I use a LinearGradientBrush to fill a rectangle. Now I want to know what
color was used on lets say pixel (5,5) in the rectangle. Is there a way to
get the color without using getPixel?

Hi all, I have a need of resizing images to a thumbnail size on the fly. I
have tried and used the image.getthumbnailimage api successfully. However I
noticed that it doesnt maintain the aspect ratio of the original image while
doing the resize. So some images do end up looking ...

This is in C#...
I create a Bitmap sized to fit a form, do a Graphics.FromImage(...) on
that Bitmap and draw to it. I do a bunch of arithmetic to serially compute
the locations of several hundred points and use ImageList.Draw(...) to

I'm trying to save a metafile I generate to disk as a enhancemetafile but it
always saves as a PNG file.  I make the following call
meta.Save(filename, imageformat.emf)

I'm just fighting since a few days with .NET, but can't find out what is
wrong in my code. I try to generate a transparent GIF, but this does not
work, the background is always black.. this is my code
someone can help me?

I have an app that takes a multi-page TIFF produced from our fax
software, and breaks it into pages and the puts each page in a row in
a dataset.  I had it writing to files and it worked fine.  I want to
have it write to memory instead.  The following code runs, but on the

I'm trying to convert byte array (valid bitmap format) into some bitmaps and
back to byte array again.  But when I inspect the content of the array
before and after the conversion they are different.  I'm used the following
code to do the conversion.  May any of you tell me what's ...

I'm trying to create a transparent line control.  That is a control that
simply draws a line from upper left to lower right of it's rectangle.
Here's the catch, I want the control to be transparent so I can place this
control on top of other controls (example, drawing a line between ...

Experienced posters,
Hope I have an easy question for you.
I am using the following code to draw a string;
g.DrawString(BaseStartDate.ToShortDateString, New Font("Tahoma", 6,

Hiya!
I'm currently looking for a good image processig component (classes) to use
in
a project. I do not want to controls (winform or webform) since I will be