While working on a PowerPack for PowerGUI I needed to create a bunch of icon files from bitmaps files so I started with a quick web search. I didn’t find any PowerShell scripts suited to the task, but did find an excellent C# WinForm by Haresh Ambaliya:
http://code.msdn.microsoft.com/Convert-Image-file-to-Icon-c927d9f7
Although the C# app is useful, it operates on a single file rather than whole bunch of files, so I quickly turned out a PowerShell called ConvertTo-Icon which I also posted on PoshCode:
function ConvertTo-Icon { [cmdletbinding()] param([Parameter(Mandatory=$true, ValueFromPipeline = $true)] $Path) process{ if ($Path -is [string]) { $Path = get-childitem $Path } $Path | foreach { $image = [System.Drawing.Image]::FromFile($($_.FullName)) $FilePath = "{0}\{1}.ico" -f $($_.DirectoryName), $($_.BaseName) $stream = [System.IO.File]::OpenWrite($FilePath) $bitmap = new-object System.Drawing.Bitmap $image $bitmap.SetResolution(72,72) $icon = [System.Drawing.Icon]::FromHandle($bitmap.GetHicon()) $icon.Save($stream) $stream.Close() } } }
Using the Convertto-Icon function against my directory of bitmap files I was to create my icon files:
PS D:\Icons> Get-ChildItem *.bmp | ConvertTo-Icon
This is often the pattern I follow when I need to create a script, first look to see if anyone else has already done it and if not look for C# examples which easily be translated into Powershell.
