You’ll find a setting named “Always use custom login background.” Double-click it and set it to Enabled.
Your image file must be less than 256 KB in size. It’s also a good idea to use an image file that matches the resolution of your monitor, so it won’t look stretched.
Windows looks for the custom logon screen background image in the following directory:
By default, the info and backgrounds folders don’t exist. Navigate to the C:\Windows\System32\oobe folder and create them yourself by right-clicking inside the folder, pointing to New, and selecting New Folder.
Copy your desired background image to the backgrounds folder and name it backgroundDefault.jpg.
The change will take effect immediately – no system reboot required. The first time you log out or lock your screen (try the WinKey-L keyboard shortcut), you’ll see your new background.
A small and free command line utility that converts a single .bmp file or a directory containing multiple .bmp files into jpg’s.
Requires .Net Framework 2.0 or later.
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BMP2JPG :: Converts BMP to JPG (100% JPEG Quality only) :: Version 1.0
Converts BMP Files
Syntax :: BMP2JPG [Source Directory or File] [Destination Directory or File] [overwrite]
::
:: Examples
::
BMP2JPG "C:\Temp\My Bitmap.bmp" "C:\Temp\My JPEG File.jpg"
Converts a single File
BMP2JPG "C:\Temp\My BMP Folder" "C:\Temp\My JPEG Folder"
Converts all Files found in "C:\Temp\My BMP Folder" to "C:\Temp\My JPEG Folder"
BMP2JPG "C:\Temp\My BMP Folder" "C:\Temp\My JPEG Folder" overwrite
Converts all Files found in "C:\Temp\My BMP Folder" to "C:\Temp\My JPEG Folder"
Overwrites Existing Files
Author :: Tom Schindler, 2010 | http://www.microtom.net
Codename :: WIN32_ConvertBMP2JPG
Code:
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.IO;
namespace BMP2JPG
{
class Program
{
public static bool overwriteall = false;
static void Main(string[] args)
{
CheckArguments(args);
string source = args[0], destination = args[1];
if (args.Length > 2)
{
if (args[2].ToLower() == "overwrite")
overwriteall = true;
}
if (Directory.Exists(source))
{
Console.WriteLine("Directory Found: {0}", source);
foreach (string bmpfile in Directory.GetFiles(source, @"*.bmp"))
{
ConvertFile(bmpfile, destination + @"\" +
Path.GetFileNameWithoutExtension(source + @"\" + bmpfile).ToString() + ".jpg");
}
if (!Directory.Exists(destination))
{
try
{
Directory.CreateDirectory(destination);
}
catch
{
Console.WriteLine("Unable to create destination Directory {0}", destination);
Environment.Exit(1);
}
}
/*
foreach (string jpgfile in Directory.GetFiles(source, @"*.jpg"))
{
ResizeFile(jpgfile, destination + @"\" +
Path.GetFileNameWithoutExtension(destination + @"\" + jpgfile).ToString() + "_Resize.jpg", 100, 100, 80);
}
*/
}
else
{
ConvertFile(source, destination);
}
}
public static void ConvertFile(string source, string destination)
{
string input = "n";
if (!File.Exists(source))
{
Console.WriteLine("Input File not found! {0}", source);
}
Console.WriteLine("Converting {0}", source);
if (File.Exists(destination) & !overwriteall)
{
Console.WriteLine("The Destination File already exists! Overwrite? [Y]es, [N]o, [A]ll");
input = Console.ReadLine().ToString().ToLower();
if (input == "a")
overwriteall = true;
else if (input != "y" & input != "n")
{
Console.WriteLine("Invalid input! Possible Answers: y, n or a!");
return;
}
}
if (input == "y" | overwriteall | !File.Exists(destination))
{
try
{
using (Image img = Image.FromFile(source))
{
img.Save(destination, ImageFormat.Jpeg);
}
Console.WriteLine("Successfully converted {0} to {1}", source, destination);
}
catch
{
Console.WriteLine("Failed to convert {0}", source);
}
}
}
public static void ResizeFile(string source, string destination, int width, int height, long quality)
{
Bitmap b = new Bitmap(source);
Image i = resizeImage(b, new Size(width, height));
saveJpeg(destination, (Bitmap)i, quality);
}
private static Image resizeImage(Image imgToResize, Size size)
{
int sourceWidth = imgToResize.Width;
int sourceHeight = imgToResize.Height;
float nPercent = 0;
float nPercentW = 0;
float nPercentH = 0;
nPercentW = ((float)size.Width / (float)sourceWidth);
nPercentH = ((float)size.Height / (float)sourceHeight);
if (nPercentH < nPercentW)
nPercent = nPercentH;
else
nPercent = nPercentW;
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
Bitmap b = new Bitmap(destWidth, destHeight);
Graphics g = Graphics.FromImage((Image)b);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgToResize, 0, 0, destWidth, destHeight);
g.Dispose();
return (Image)b;
}
private static void saveJpeg(string path, Bitmap img, long encquality)
{
EncoderParameter qualityParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, encquality);
ImageCodecInfo jpegCodec = GetEncoderInfo("image/jpeg");
if (jpegCodec == null)
return;
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = qualityParam;
img.Save(path, jpegCodec, encoderParams);
}
private static ImageCodecInfo GetEncoderInfo(String mimeType)
{
int j;
ImageCodecInfo[] encoders;
encoders = ImageCodecInfo.GetImageEncoders();
for (j = 0; j < encoders.Length; ++j)
{
if (encoders[j].MimeType == mimeType)
return encoders[j];
}
return null;
}
public static void CheckArguments(string[] args)
{
if (args.Length < 2)
{
Console.WriteLine("-------------------------------------------------------------------------------");
Console.WriteLine(" BMP2JPG :: Converts BMP to JPG (100% JPEG Quality only) :: Version 1.0");
Console.WriteLine("-------------------------------------------------------------------------------");
Console.WriteLine("\n");
Console.WriteLine("Started : " + DateTime.Now);
Console.WriteLine("\n");
Console.WriteLine("Converts BMP Files");
Console.WriteLine("\n");
Console.WriteLine(" Syntax :: BMP2JPG [Source Directory or File] [Destination Directory or File] [overwrite]");
Console.WriteLine("\n");
Console.WriteLine("::");
Console.WriteLine(":: Examples");
Console.WriteLine("::");
Console.WriteLine(" BMP2JPG \"C:\\Temp\\My Bitmap.bmp\" \"C:\\Temp\\My JPEG File.jpg\"");
Console.WriteLine(" Converts a single File");
Console.WriteLine("\n");
Console.WriteLine(" BMP2JPG \"C:\\Temp\\My BMP Folder\" \"C:\\Temp\\My JPEG Folder\"");
Console.WriteLine(" Converts all Files found in \"C:\\Temp\\My BMP Folder\" to \"C:\\Temp\\My JPEG Folder\"");
Console.WriteLine("\n");
Console.WriteLine(" BMP2JPG \"C:\\Temp\\My BMP Folder\" \"C:\\Temp\\My JPEG Folder\" overwrite");
Console.WriteLine(" Converts all Files found in \"C:\\Temp\\My BMP Folder\" to \"C:\\Temp\\My JPEG Folder\"");
Console.WriteLine(" Overwrites Existing Files");
Console.WriteLine("\n");
Console.WriteLine("\n");
Console.WriteLine(" Author :: Tom Schindler, 2010 | http://www.microtom.net");
Console.WriteLine(" Codename :: WIN32_ConvertBMP2JPG");
Environment.Exit(0);
}
}
}
}
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