Trying to determine the number of pages in a tiff file. I'm assuming
System.Drawing calls pages frames.
Here's what I have now, although it clearly doesn't work:
Dim img As Image

I have subclassed the PrintDocument class and overridden OnBeginPrint
and OnPrintPage to create a reusable class for reports.  My app
displays these reports in a PrintPreviewControl.  Everything works fine
on my XP Pro SP2 (Framework v2.0) dev machine.

I keep seeing references (from a number of MVPs among others) about how one
can generate temporary graphics by pointing the ImageURL of a control to a
web page rather than fixed location.
Could someone give me a coherent example?  So far I'm stumped.  I really

I'm writing some file upload code using C# for users on my website. If
the image is too large I want to resize it smaller to a thumbnail size.
It's working fine for jpegs but the thumbnails of the gifs look pretty
bad.

Are there examples/samples of adding new image types that can be read/written
via the System.Drawing.Image class?  I've got a custom image type and would
rather not have to load it by creating a Bitmap object, calling LockBits,
modifying the bits, and then calling UnlockBits.

Hello to erveryone,
i'v an imgPicBox where i've loaded an image.
I want crop this, but i would use a graphic selection (photoshop mode for
ex.). It's possible? I must use a pen and make a rectangle on image or i can

Defining an image file like below worked in vb2003:
e.Graphics().DrawImage(System.Drawing.Image.FromFile("QC2Invoice.png"),
e.Graphics.VisibleClipBounds)
"QC2Invoice.png" in ../bin/release

I am looking at writing an application  (in VB.NET) to find and flag colours
used in an image. What is the best way to go?
Peter W.

I have a print document that has a graphics object as such:
Private Sub PrintDocument1_PrintPage(ByVal sender As Object, ByVal e As
System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
Dim AGraphic as Graphics = e.Graphics

Exception when creating a Font object:
  An unhandled exception of type 'System.ArithmeticException' occurred in
  system.drawing.dll
  Additional information: Overflow or underflow in the arithmetic

I'm looking for your suggestions on how to optimize my control draw
routines...
I know that the most important thing in optimization is to draw only needed
parts (which is passed as ClipRectangle) but I'm having difficulties for

What are ImageCodecInfo classes? Can tehy make your images (gif, jpeg, etc.)
better or why to use them?
I made a (another) screen capture program and notice that captures
could be better. Could ImageCodecInfo class make screen capture picture

Using a mousehook I am drawing the mouse coordinates on the desktopwindow
when a user hovers the mouse over a certain control. The problem I am having
know I need to invalidate the region where I am drawing the coordinates,
thus I need to invalidate a specified region on the ...

I'm capturing data from a lab instrument and drawing graphs and things onto
a picturebox.  I then want to be able to save the resulting image.  How do I
get a handle (or something) to what I have drawn?  Or do I need to create an
image object and re-draw it all onto that?  Surely ...

I have a 1 bit images (scanned page) and want to display it in greyscale
with bilinear to help it look much better when displayed
I have looked at Bob Powell's site and played around with the "Create high
qaility thumbnail images" sample, but I need to have the page in the same