PngReduce(ImagXpress,String,String) Method

Compress a PNG to optimal size while maintaining lossless fidelity to the input image. The reduction is achieved by removing select pieces of metadata and other possible color and/or transparency reductions.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Overloads Shared Sub PngReduce( _
   ByVal imagXpress As ImagXpress, _
   ByVal inputFileName As String, _
   ByVal outputFileName As String _
)

'Usage
 
Dim imagXpress As ImagXpress
Dim inputFileName As String
Dim outputFileName As String
 
ImageReduce.PngReduce(imagXpress, inputFileName, outputFileName)

public static void PngReduce( 
   ImagXpress imagXpress,
   string inputFileName,
   string outputFileName
)

public: static void PngReduce( 
   ImagXpress* imagXpress,
   string* inputFileName,
   string* outputFileName
)

public:
static void PngReduce( 
   ImagXpress^ imagXpress,
   String^ inputFileName,
   String^ outputFileName
)

Parameters

imagXpress: An instance of the ImagXpress workspace component. This is the main ImagXpress component that typically must be dragged onto a form first.
inputFileName: The name of the input PNG file.
outputFileName: The name of the output PNG file.

Exceptions

Exception	Description
System.ArgumentNullException	Thrown when imagXpress is null.
System.ArgumentNullException	Thrown when inputFileName is null.
System.ArgumentNullException	Thrown when outputFileName is null.
System.IO.FileNotFoundException	Thrown when inputFileName does not exist.
System.ArgumentException	Thrown when inputFileName is an HTTP or FTP URL.
System.ArgumentException	Thrown when outputFileName is an HTTP or FTP URL.
ImagXpressException	Thrown when imagXpress is not licensed for this feature.
ImagXpressException	Thrown when inputFileName refers to a damaged or incomplete PNG.
System.UnauthorizedAccessException	Thrown when outputFileName cannot be created or modified.

Reference

ImageReduce Class
ImageReduce Members
Overload List