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OpenFile Method

Summary

Opens a disk file for reading as an ILeadStream object.

Syntax
C#
Python
public static ILeadStream OpenFile( 
   string fileName 
) 
def FromStream(self, fileName):

Parameters

fileName

Path to the file on disk.

Return Value

ILeadStream object. This method returns an instance of LeadFileStream.

Remarks

This method will create a new instance of LeadFileStream with FileName set to fileName and the file mode and share set to read-only. This object can then be passed to the various LEADTOOLS class members that accept an ILeadStream object. Such as RasterCodecs.GetInformationAsync, RasterCodecs.LoadAsync or RasterCodecs.LoadSvgAsync.

The method will create a new instance of LeadFileStream using:

C#
return new LeadFileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);

Refer to RasterCodecs Async Operations for more information and examples.

Requirements

For .NET Framework: A reference to the Leadtools.Async.dll assembly is required to use this functionality.

For .NET Standard: This functionality is included in the Leadtools.dll assembly.

Target Platforms

Help Version 22.0.2023.5.16
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Leadtools Assembly
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.