Category: Windows


How to disable the “uninstall password” to uninstall Symantec Antivirus

Filed Under: How To, Oracle, OS, Windows by Jason L Froebe — 5 Comments
March 10, 2010

I was trying to install Oracle 11g client on to a WinXP box but Symantec Antivirus wouldn’t let me because it thought it was infected with over 800 viruses.  Same file was marked clean on another box.  So, I picked several of the viruses it said was infected with and looked for any evidence of them on the WinXP box.  No dice.  This led me to believe that Symantec Antivirus itself was somehow mucked up.

When I tried to uninstall Symantec Antivirus, it asked for a password.  When I put in the correct password, it refused it.  So how to uninstall it with a messed up password?  Easy..

Open up regedit (as an administrator) and change HKEY_LOCAL_MACHINE\SOFTWARE\INTEL\LANDesk\VirusProtect6\CurrentVersion\AdministratorOnly\Security\UseVPUninstallPassword to “0″ (zero).

I was able to uninstall and reinstall Symantec Antivirus.

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Get it here! Perl DBD::Sybase 1.09.01 for Active State Perl 5.10 and 5.8 on Windows XP/Vista/7 32bit

Filed Under: APIs, Databases, DBI, OS, Perl, Sybase, Windows by Jason L Froebe — 8 Comments
March 9, 2010

Assuming that you installed Sybase OpenClient 15.5 from the 15.5 PC Client:

Install ActiveState Perl from http://www.activestate.com (free) and install DBI if it isn’t already installed.  It should be but you never know…

  1. Start -> ActiveState Perl -> Perl Package Manager
  2. install DBI
  3. exit

Now, the easy part.  Install the DBD::Sybase 1.09.01 PPM:

  1. download DBD::Sybase 1.09.01 PPM
  2. extract zip file to temporary directory (e.g. c:\test)
  3. Start -> Run -> cmd.exe (as Administrator if Vista or Windows 7)
  4. cd \test
  5. ppm install DBD-Sybase.ppd
  6. exit

That’s it :)

It should automatically install the DBD::Sybase for Perl 5.8 or 5.10 depending on which version of Active State Perl you have installed.

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Get it here! Perl DBD::Sybase 1.09 for Active State Perl 5.10 on Windows XP/Vista/7 32bit

Filed Under: APIs, ASE, Databases, DBI, OS, Perl, Sybase, Windows by Jason L Froebe — 3 Comments
February 17, 2010

Assuming that you installed Sybase OpenClient 15.5 from the 15.5 PC Client:

Install ActiveState Perl from http://www.activestate.com (free) and install DBI if it isn’t already installed.  It should be but you never know…

  1. Start -> ActiveState Perl -> Perl Package Manager
  2. install DBI
  3. exit

Now, the easy part.  Install the DBD::Sybase 1.09 PPM:

  1. download DBD::Sybase 1.09 PPM
  2. extract zip file to temporary directory (e.g. c:\test)
  3. Start -> Run -> cmd.exe (as Administrator if Vista or Windows 7)
  4. cd \test
  5. ppm install DBD-Sybase.ppd
  6. exit

That’s it :)

Sybase

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Started reading “Foundations of Qt Development”

Filed Under: Book, Linux, Mac OSX, misc, OS, Windows by Jason L Froebe — Leave a comment
January 19, 2010

When I purchased Foundations of Qt Development (Expert’s Voice in Open Source) by Johan Thelin a few months back, I hoped to get to it right away but work and life diverted my attention. Today at lunch I dived into it. Even though I’m still going through chapter 1, I think I can give a hint of it:

Foundations of Qt® Development (Expert’s Voice in Open Source) is well written. He assumes that you have a little bit of C++ knowledge, avoiding into the trap that so many other authors do. You wouldn’t believe how many technical books I have where the first half or more of the book is simply a rehash of the basics. Forget that!

What I really like is that when he shows you an example of code, he explains why you would want to write it this way and how it differs from the Standard Template Language (STL – see C++ Programming Language, The (3rd Edition)). Where there are performance gains or penalties of using Qt instead of STL, he demonstrates it.

I never realized just how easy it is to write C++ using the Qt framework! Just the Signals and Slots alone make it very very powerful and that’s just the beginning. I’m completely blown away :)

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How to resize a Gdk.Pixbuf to the size of a Gtk.Image visible area

Filed Under: How To, Linux, OS, Perl, Windows by Jason L Froebe — 2 Comments
January 12, 2010

I wrote a simple image viewer that will load a photo image into a Gtk.Image widget using a Gdk.Pixbuf.  I then added a tool bar with four clickable icons.  Zoom out, zoom in, fit to window and original size.

All but the fit to window worked well.  When I pulled the width and height from image1.GetSizeRequest(out width, out height), width & height were returned as -1.  Not helpful.  Google didn’t give me many clues either :(

What I needed was something that would provide the visible area of the Gdk.Image widget:

In order to get the visible area, we need to:

  • upcast Gtk.Image to a Gtk.GdkWindow
  • retrieve a Gdk.Region from the VisibleRegion method
  • retrieve the first Gdk.Rectangle from the array returned from the visibleRegion.GetRectangles method
  • extract the Height and Width from the Gdk.Rectangle

Now that we have the height and the width of the visible area of the Gtk.Image widget, we need to scale the image (Gdk.Pixbuf) while keeping the aspect. Assigning the image to the Gtk.Image widget will automatically redraw itself.

protected virtual void zoomToWindow (object sender, System.EventArgs e)
{
   if (image1.Pixbuf != null) {
     int new_width, new_height;
     int height = image1.Pixbuf.Height;
     int width = image1.Pixbuf.Width;

     Gdk.Region visibleRegion = image1.GdkWindow.VisibleRegion;
     Gdk.Rectangle rectangle = visibleRegion.GetRectangles()[0];
     new_height = rectangle.Height;
     new_width = rectangle.Width;
     scaleImage(height, width, ref new_height, ref new_width, 0);
     image1.Pixbuf = pictureBuf.ScaleSimple(new_width, new_height, Gdk.InterpType.Bilinear);
   }
}

There we go :)
While the code above is C#, the same principle goes for any language that uses Gtk.

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