I'm about ready to give up.
Been trying to convert a 8bpp to 4 bpp but haven't found a way.
I can us Quantizer to generate a 16 color palette but that changes the pixel
format to 8 bpp.

I am a newbie in the C# graphical arena and I have the following
problem. I have a 2D disk in which I have a few points, each point
having x, y coordinates and also a value associated with it which
represents profit (or loss). What I want to do is to create a

As a beginner to GDI, I think I'm doing someting fairly
straightforward, loading and saving an image, but it seems te lead to
a loss of quality. What can be the reason for this loss, and how would
I go about it to fix this?

How many invalid parameters are there in the following method call?
myScaledHdc = myScaledGraphics.GetHdc();
Running in the debugger, Visual C# 2005 SP1 says there's at least one
invalid parameter in the above call.  And the invalid argument exception was

After a call to Graphics.DrawImage, an OutOfMemory error might occur.  The
probability of an error has some correlation with the size of the image but
is not reliable.  Even with an image of a few hundred megabytes, sometimes
the error occurs and sometimes not.  Some random ...

I have about hundred of small bitmaps I have to use in my web app
as small icons on some image map.
Every icons represented with these bmps should be drawn in 2 states:
1. normal (as is)

I'd like to be sure I completely understand: There is no way, using Dotnet
and/or some free software, to save an indexed GIF file as anything but 8bpp.
Right?
What about other indexed files like BMP. Same problem?

I am drawing a rectangle on a picture that has already been drawn
on the graphics area (a user control). It works something like this:
//in the MouseDown event
 m_isDragging = true;

Hello I am saving JPG file with the following SUB.
   Sub SaveJPG(ByVal Image As Image, ByVal FileName As String, _
                        ByVal QualityLevel_0_100 As Byte, _
                        ByVal ColorDepthLevel As Byte)

Is it possible using Bitmap.Save to produce a GIF file that is 4bpp?
Seems that I always get 8bpp.
If I know it's not possible I'll quit trying.
Thanx

I am new to GDI+, our client is interested in have their web-based
project management generate some roadmaps that look like the one
below:
http://farm2.static.flickr.com/1226/1185331048_5d0b41e7f8_o.png

1) Load a theme which is .psd (Adobe Photoshop) file in asp.net.
  The .psd file contains layers a) which starts with Fill, b) Which starts
with Clipart
2) Allow a user to select some image(.jpg).

I've found quite a lot of messages and posts by developers at a loss
as to how to use MakeTransparent() to generate a GIF89 image with a
transparent color...but I've come across a particular problem that
I've yet to see mentioned, namely that using

I've got a picture box inside a picture box.  I would like to be able to
move it and scale it.  I've got the moving part down, and currently have a
"make bigger" and "make smaller" button that scale the image by some fixed
number when clicked.

I have a need to generate images similar to what you would see in a periodic
table of elements or on a Scrabble board.  It seems that I can get the
painted on the image, but laying the image out properly seems to be a
challenge.