how can I permanently clear the content of a PictureBox which has a
background colour set to white? I have tried to do it the same way as
I do the painting (create a Bitmap, clear it with white colour and
draw it onto a Graphics on the PictureBox), but it does not work as I

I'd like to allow users to paint over an image using a circle of a given size
so that I can 'cut' out the painted area.
I've tried using graphicspath.addellipse on mouse move which gives an
impression of what I require but this leaves the interior of the path all

I need to change the size of an Format8bppIndexed image.
I suppose I could change the format and scale it and put it back.
But I'm wondering if there is a more straight forward way.
How would you change the size of a Format8bppIndexed bitmap?

Why couldn't the palette of the saved bitmap be revised and re-inserted back
into that bitmap.
Rather then the time consuming coping of all that bitmap's data to a new
bitmap?

I need to animate graphics over a large.jpg set as the forms background.
Reloading the image each time the animation moves is not an option as it
takes too long.
I thought drawing on a transparent panel would be the answer indeed it works

A am looking for a simple example of text editor made all by GDI+..
I can image one must be an expert to create a full editor: I just need
the very basic. Typing and erasing letters, basic spacing and moving
the cursor back and forth over a graphic object.

I'm trying to clip an image to an irregular shape.  I've come across some
advice from Bob Powell
(http://groups.google.co.uk/group/microsoft.public.dotnet.framework ...

Dim Ncp As ColorPalette = Bm.Palette
From a test I ran I think that the above statement does not cause Ncp to
reference Bm.Palette but instead produces a new palette and Ncp points to
it.

See code below
mDifImage is 8-bit indexed
How can I calculate what value to set sz to?
I look at buffer expecting it to start with

I think I found a bug in Graphics.DrawString() method. Font underlines
and strikeouts are drawn in wrong places after changing
Graphics.PageUnit.
To reproduce this bug place provided code in the Paint event of a

I have a bitmap which I get graphics from and draw on. Sometimes the
image will be too big for the bitmap bounds however, so I need to
increase the dimensions. The constructor in Bitmap that takes an
existing one and adjusts the size actually only scales it so this is

I've finally nailed down a problem with some TIFF's I've been generating in
.NET, and wanted to know where the blame may lay :)
I have some pretty simple code which saves a TIFF in Ccitt3 format.
However, when opening the resulting TIFF in something like Paint Shop Pro X

I'm looking for a way to 'Lasoo' a section of an image.
Similar to the sparkling wand mask tools in Photoshop and the likes...
Hopefully to return a region object.
Any pointers ?

I have a VB.NET application that accepts a 300 dpi CMYK Tiff and
downsizes it to an RGB JPEG, which works great.  The only problem is
the coloring seems to darken and become muddy, with oranges becoming
browns, etc.  Has anyone else had this happen, and hopefully found a

could someone please tell me how should I pass a Graphics object
(which has already been drawn onto) to another method to do some
drawing and then get it back from the method with the changes made
there?