DZone Snippets: win32 code

Using mmap to do a global search and replace on Windows

djberg96 (Daniel Berger) — Tue, 13 May 2008 04:14:23 GMT

// Use win32-mmap to do a global search and replace on Windows



require 'win32/mmap'

require 'windows/msvcrt/buffer'

include Windows::MSVCRT::Buffer



Strlen = API.new('strlen', 'L', 'L', 'msvcrt')

Strstr = API.new('strstr', 'LP', 'L', 'msvcrt')



Dir["**/*.rb"].each{ |f|

   p f

   Win32::MMap.new(:file => f) do |addr|

      old_str = 'some_old_string'

      old_len = old_str.length

      new_str = 'some_other_string'

      new_len = new_str.length



      ptr1 = ptr2 = ptr3 = Strstr.call(addr,old_str)



      while ptr1 && ptr1 != 0

         ptr2 += new_len

         ptr3 += old_len

         memmove(ptr2, ptr3, 1 + Strlen.call(ptr3))

         memcpy(ptr1, new_str, new_len)

         ptr1 = ptr2 = ptr3 = Strstr.call(ptr2,old_str)

      end

   end

}

test1

flo (flo) — Mon, 10 Dec 2007 14:37:32 GMT

// description of your code here



#include 

int main()

{

printf("test");

}

Open/Creates a Base Key in the Registry

dubby (Dave) — Tue, 11 Sep 2007 11:58:28 GMT

// open a Base Key in the registry



       public static RegistryKey GetKey(string baseKey)

        {

            RegistryKey key;

            try

            {

                key = Registry.LocalMachine.OpenSubKey(baseKey, true);



                if (key == null)

                {

                    key = Registry.LocalMachine.CreateSubKey(baseKey);

                }

                else

                {

                    MessageBox.Show("Base key resolved");

                }

            }

            catch (Exception e)

            {

                return null;

            }

            return key;

        }

Wallpaper.reg

mcandre (Andrew Pennebaker) — Sat, 09 Dec 2006 03:41:12 GMT



[HKEY_CURRENT_USER\Control Panel\Desktop]

"Wallpaper"="C:\\wallpaper.bmp"

Recover Master Boot Record

MattScilipoti (Matt Scilipoti) — Sun, 08 Oct 2006 07:39:10 GMT

From http://www.trajano.net/2006/07/freedos-to-rescue.html:

http://www.freedos.org/freedos/files/
If you ever bust up your dual boot installation because you wanted to remove Linux on your laptop with no floppy drive. Like me a few minutes ago. Go grab the FreeDOS ISO image and burn it to your CD-RW media and boot from it.



Press Enter

Type 2 (for safe mode)

cd FREEDOS

FDISK /MBR

Mongrel on Win32 as Service

MattScilipoti (Matt Scilipoti) — Wed, 05 Apr 2006 09:44:32 GMT

Mongrel now has support for running as a Win32 service right out of the box. The support is still rough but works well enough that we decided to release it. You can thank Luis Lavena for working on this and making it so nice.

After you do the gem install, find a Rails application you want to run and do:



$ mongrel_rails_service install -n myapp -r c:\my\path\to\myapp -p 4000 -e production

$ mongrel_rails_service start -n myapp

Now hit the port and poof, works. Stopping the app is just done with:



$ mongrel_rails_service stop -n myapp

And, you can even set the CPU processor affinity for the service when yourun the install command. Can’t even do that on POSIX yet. Now that’s hot.

If you run into an app that’s not running right, my suggestion is to run it with the regular mongrel_rails runner:



$ cd c:\my\path\to\myapp

$ mongrel_rails start -p 4500

Since that will spit out error messages and stuff to the console. Use CTRL-Pause/Break to stop.

Speech recognition

korakot (Korakot Chaovavanich) — Sat, 17 Sep 2005 06:26:09 GMT

The code is too long. I'd rather just make a link.
It uses MS Speech SDK 5.1 via COM.

Text-to-speech

korakot (Korakot Chaovavanich) — Sat, 17 Sep 2005 06:16:48 GMT



>>> import win32com.client

>>> s = win32com.client.Dispatch("SAPI.SpVoice")

>>> s.Speak('Hello, how are you?')

You need MS Speech SDK installed. See recipe.

Get and set windows clipboard

korakot (Korakot Chaovavanich) — Fri, 16 Sep 2005 19:21:59 GMT

From June Kim's recipe.



import win32clipboard as w 

import win32con



def getText(): 

    w.OpenClipboard() 

    d=w.GetClipboardData(win32con.CF_TEXT) 

    w.CloseClipboard() 

    return d 

 

def setText(aType,aString): 

    w.OpenClipboard()

    w.EmptyClipboard()

    w.SetClipboardData(aType,aString) 

    w.CloseClipboard()

Creating a share on windows

korakot (Korakot Chaovavanich) — Fri, 16 Sep 2005 17:44:03 GMT

Copied from John Nielson's recipe.



import win32net

import win32netcon



shinfo={}



shinfo['netname']='python test'

shinfo['type']=win32netcon.STYPE_DISKTREE

shinfo['remark']='data files'

shinfo['permissions']=0

shinfo['max_uses']=-1

shinfo['current_uses']=0

shinfo['path']='c:\\my_data'

shinfo['passwd']=''

server='servername'



win32net.NetShareAdd(server,2,shinfo)