I try to split multipage tif file to separate files using vb.net 2.0.
To accomplish this I use the following code
   Dim sourceBitmapFile As New Bitmap("multiPageTiffFile")
   Dim saveCodecInfo As ImageCodecInfo = GetEncoderInfo("image/tiff")

I have created a program that displays different pictures on the form at the
same time.  When I have no ImageAttributes against the images, everything
runs perfect and smooth.  When I start adding ImageAttributes (greyscale,
negative, etc) the program starts to slow down and lag.

I have a bitmap drawn on my form and I wish to draw an ellipse over it using
the bitmap colors inverted.  I used to do this using GetDC() and SetROP2().
Is there a way to do something similar using a Graphics object?
Regards

I have implemented Bob Powell's method for 1 bit conversions and am wondering
if there is a faster way to do this?  I am finding that in .NET 2.0 using
this method, it is particularly slow.  Have there been any improvements in
the framework in 2.0 for dealing with images?  Are ...

Hi Newsgroup,
for a project at high school I need to superpose 12 grayscale bitmaps
into one Bitmap.
For each Point P(x,y) in the resulting bitmap the grayscale value should

Hi all, I'm looking at trying to improve the performance of showing a
bunch of controls on a panel.
I have a class that extends Panel.  In that class, I do the following:
this.SuspendLayout();

Is it possible and to use the MeasureString method without the
PaintEventArgs object
Thank you,
Samuel

i have a string thatt i draw in the visible surface of a control with a
specific font.Later i want to obtain the rectangle that wraps that string to
put a background color to the string. I have tried to do it with measure
string method but that method doesn´t give me the exact ...

Given a Bitmap object, I need to test if it is using alpha
transparency.
Any idea on how to quickly detect that (possibly something smarter than
testing the pixels one by one) ?

Is there a way to list/enumerate all GDI+ Brushes?
Thanks

I encounter a problem when painting a window in two programmatically
different applications that should display the same kind of picture.
The picture consists of a bitmap on whose top there appears an icon.
The problem is that in one app the picture is always stable, while in