In a test app that reproduces a requirement of another app, I am trying to
load an image from disk into a System.Drawing.Image object, and then read
the bytes of the image object into a memory stream.
The code is as follows...

How do I load a 32bit ARGB formatted bitmap into an Image object?
I tried this
Image.FromFile(path)
but apparently I am loosing the alpha channel.

I've several controls which I fill with a GradientBrush. That Brush has an
endcolor as Transparent. I also fill it using a GraphicsPath. This container
control does also support transaprentbackground, set via SetStyle.
In non-container controls, this works well. But in Container ...

I want to create a custom form (all drawn in the pain event) that is part
solid (i.e. non see through) and part see through (e.g. 50% opacity). I've
tried setting the BackColor and TransparanceKey colors to the same value and
drawing lines with different Alpha color values. The ...

Is there any relatively simple way to rotate a bitmap (PixelFormat =
Format8bppIndexed) by say, 9 degrees?
Thanks!
-sb

I'd like to draw some GDI+ graphics on top of a web page in a windows form
application, but I can't seem to do it.  The WebBrowser control hides the
Paint event (and never calls the OnPaint method); and putting a transparent
other control on top doesn't work because ...

Hi, I'm trying to draw a metafile on top of another metafile using C#
Express. I'm used to doing this with PlayEnhMetafile (and friends) in the
Win32 API, using Delphi, but now I need to do the same in dotnet. The
purpose is to see if a problem I have here is also present in ...

Since there's no decent built-in color quantization for the .Net gif
encoder (really, who in the heck uses the web-safe palette anymore?),
we have to do it ourselves.
This page:

I am using VB.NET and I am capturing frames from a camera.  Since the
data is coming to my app via an array of bytes and is 8 bit, I am using
the following code to display it in a picturebox.
    Private Sub ConvertFromArrayToPictureBox(ByRef oPixBox As PictureBox,

     I created a BufferedGraphics object using the
BufferedGraphicsContext->Allocate method, and I still get screen
flicker.  My paint method is simple enough:
     BufGraphics->Graphics->DrawImage(...

I found usefull way to draw arrows:
http://groups.google.com/group/microsoft.public.dotnet.framework.drawing/browse_
thread/thread/d909c2f68b245d25/6d5c2a8ccdb7f937?lnk=st&q=C%23+AdjustableArrowCap
&rnum=1#6d5c2a8ccdb7f937
but I need to create kind of OnMouseDown on this arrows and ...

I have a PictureBox control on a form that displays a bitmap.  However,
the bitmap rarely matches the size of the PictureBox.  The different
SizeMode properties don't really do it for me.  In one case, it changes
the size of the PictureBox itself, making it larger than the form.  ...

I tryed to do a bitmap export in my app by creating a bitmap, drawing to it
and saving the file.
Something like that
void SaveToFile(string pngfile)

In my drawing code I recusrively create an average number of pens and
brushes of, let's guess: 300?
Would I see performance improvment by just caching those?
(actually I use and create all of them in a using() statment)

is there a way using GDI+  to fill a line ,rectangle or any other group
of pixels with colors, but specify the color of each pixel (the colors
of the pixels can be different) ?
thanks.