Capture Active window in vb.net

Does anyone have or has seen an example of how to find the current active window on a desktop, find its cordinates and then screen shot it in to a bmp?
pamsautoAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Mike TomlinsonMiddle School Assistant TeacherCommented:
There are two basic ways to go about it:

(1) Use the GetForegroundWindow() API to get a handle to the active window.  Use the GetWindowRect() API to get the screen coordinates.  Use the BitBlt() API to copy it to an image (more APIs involved there).

(2) Press Alt-PrtScr and copy the resulting Image from the ClipBoard.

Do you have a preference in method?...
0
Mike TomlinsonMiddle School Assistant TeacherCommented:
Method (2) is simply...

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Clipboard.Clear()
        SendKeys.SendWait("%{PRTSC}")
        Dim data As IDataObject = Clipboard.GetDataObject()
        If data.GetDataPresent(GetType(System.Drawing.Bitmap)) Then
            Dim bmp As Bitmap = CType(data.GetData(GetType(System.Drawing.Bitmap)), Bitmap)

            ' do something with "bmp"...
            PictureBox1.Image = bmp
        End If
    End Sub
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
pamsautoAuthor Commented:
I need method #1.  With the API calls you gave me I found what I needed.  They were solutions you made for users already!    

http://www.experts-exchange.com/Programming/Languages/.NET/Visual_Basic.NET/Q_21504191.html


As always Idle Mind - Thanks for your help.
0
Mike TomlinsonMiddle School Assistant TeacherCommented:
=)
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
.NET Programming

From novice to tech pro — start learning today.