IconForGUI.psm1
|
#Add required assemblies Add-Type -AssemblyName System.Drawing, WindowsBase, PresentationCore #Add Win32 API Functions Add-Type -Namespace Win32API -Name Icon -MemberDefinition @' [DllImport("Shell32.dll", SetLastError=true)] public static extern int ExtractIconEx(string lpszFile, int nIconIndex, out IntPtr phiconLarge, out IntPtr phiconSmall, int nIcons); [DllImport("gdi32.dll", SetLastError=true)] public static extern bool DeleteObject(IntPtr hObject); '@ Function Get-IconFromFile { <# .SYNOPSIS Gets icons from .exe, .dll, and icon files .DESCRIPTION Get-IconFromFile retrieves icons from .exe, .dll, and icon files. If the file contains more than one, you can specify the index of the icon with the Index parameter. By default the command retrieves the small version of the icons, but it can return the large version, if they exist, by using the LargeIcon switch. .PARAMETER Path The path to the file containing the icon to retrieve. .PARAMETER Index The index of the icon if the file contains more than one. .PARAMETER LargeIcon Specifies that the large version should be retrieved. .INPUTS System.String Get-IconFromFile accepts string objects of file paths to the Path parameter binding to the Path property. .OUTPUTS System.Drawing.Icon Get-IconFromFile outputs a System.Drawing.Icon object representing the icon. .EXAMPLE PS C:> Get-IconFromFile -Path setupapi.dll -Index 21 This command will retrieve the small icon located in the setupapi.dll file located at the 21st index. .EXAMPLE PS C:> Get-IconFromFile -Path setupapi.dll -Index 21 -LargeIcon This command will retrieve the large icon located in the setupapi.dll file located at the 21st index. .NOTES The basis for this command came from a post by Kazun on the forum http://social.technet.microsoft.com/Forums/en/winserverpowershell/thread/16444c7a-ad61-44a7-8c6f-b8d619381a27 #> [CmdletBinding()] Param( [Parameter(Position=0,Mandatory=$true,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)] [Alias("FullName")] [String[]]$Path, [Parameter(Position=1)] [Int]$Index=0, [Switch]$LargeIcon ) Process { foreach ($p in $Path) { #Initialize variables for reference conversion $large,$small = 0,0 #Call Win32 API Function for handles [Win32API.Icon]::ExtractIconEx($p, $Index, [ref]$large, [ref]$small, 1) | Out-Null #If large icon desired store large handle, default to small handle $handle = if ($LargeIcon) {$large} else {$small} #Get the icon from the handle if ($handle) { [System.Drawing.Icon]::FromHandle($handle) } #If the handles are valid, delete them for good memory practice $large, $small, $handle | Where-Object {$_} | ForEach-Object {[Win32API.Icon]::DeleteObject($_)} | Out-Null } } } Function Get-AssociatedIcon { <# .SYNOPSIS Gets the icon associated with a program or file. .DESCRIPTION Get-AssociatedIcon retrieves the icon that Windows associates with that program or file. .PARAMETER Path The path to the file containing the image to retrieve. .INPUTS System.String Get-AssociatedIcon accepts string objects of file paths to the Path parameter binding to the Path property. .OUTPUTS System.Drawing.Icon Get-AssociatedIcon outputs a System.Drawing.Icon object representing the icon. .EXAMPLE PS C:> Get-AssociatedIcon -Path C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe This command will retrieve the icon associated with the PowerShell program. #> [CmdletBinding()] Param( [Parameter(Mandatory=$true,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)] [Alias("FullName")] [String[]]$Path ) Process { foreach ($p in $Path) { [System.Drawing.Icon]::ExtractAssociatedIcon($p) } } } Function Get-ImageSourceFromFile { <# .SYNOPSIS Gets ImageSource object from a bitmap file to be used as an icon. .DESCRIPTION Get-ImageSourceFromFile gets an ImageSource object from a bitmap file to use as an icon. The Path parameter can accept file paths, network shares, or web addresses, as long as the destination is a bitmap image, such as a .png or .ico. .PARAMETER Path The path to the file containing the bitmap image to retrieve. .INPUTS System.String Get-ImageSourceFromFile accepts string objects of URI paths to the Path parameter binding to the Path property. .OUTPUTS System.Windows.Media.Imaging.BitmapImage Get-ImageSourceFromFile outputs a System.Windows.Media.Imaging.BitmapImage object representing the bitmap image. .EXAMPLE PS C:> Get-ImageSourceFromFile -Path C:\SomeIconFile.ico This command will retrieve the ImageSource object from the bitmap file. #> [CmdletBinding()] Param( [Parameter(Mandatory=$true,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)] [Alias("FullName")] [String[]]$Path ) Process { foreach ($p in $Path) { New-Object System.Windows.Media.Imaging.BitmapImage -ArgumentList $p } } } Function ConvertTo-ImageSource { <# .SYNOPSIS Converts a System.Drawing.Icon into a System.Windows.Interop.InteropBitmap. .DESCRIPTION ConvertTo-ImageSource converts a System.Drawing.Icon, which are used in Windows Forms applications, into a System.Windows.InteropBitmap, a descendent of the ImageSource class used by icons for WPF applications. .PARAMETER Icon The icon to convert into an ImageSource .INPUTS System.Drawing.Icon ConvertTo-ImageSource accepts System.Drawing.Icon objects to the Icon parameter binding to the Icon property. .OUTPUTS System.Windows.Interop.InteropBitmap ConvertTo-ImageSource outputs a System.Windows.Interop.InteropBitmap object representing the bitmap image. .EXAMPLE PS C:> ConvertTo-ImageSource -Icon $Form.Icon This command will convert the icon used in the Windows Form $Form into an ImageSource derived bitmap image that can be used in WPF applications. .EXAMPLE PS C:> Get-IconFromFile -Path setupapi.dll -Index 21 | ConvertTo-ImageSource This command will get the icon at index 21 from the setupapi.dll and then convert it to an ImageSource derived bitmap image that can be used in WPF applications. #> [CmdletBinding()] Param( [Parameter(Mandatory=$true,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)] [System.Drawing.Icon]$Icon ) Process { foreach ($i in $Icon) { [System.Windows.Interop.Imaging]::CreateBitmapSourceFromHIcon( $i.Handle, (New-Object System.Windows.Int32Rect -Args 0,0,$i.Width, $i.Height), [System.Windows.Media.Imaging.BitmapSizeOptions]::FromEmptyOptions() ) } } } New-Alias -Name gif -Value Get-IconFromFile New-Alias -Name gai -Value Get-AssociatedIcon New-Alias -Name gisf -Value Get-ImageSourceFromFile New-Alias -Name ctis -Value ConvertTo-ImageSource |