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LoadTemplate Event

Summary

Occurs when loading TWAIN capabilities from the currently selected TWAIN source to a template file by calling the LoadTemplateFile method.

Syntax

C++

public event EventHandler<TwainTemplateEventArgs> LoadTemplate

Public Event LoadTemplate As EventHandler(Of TwainTemplateEventArgs)

public: 
event EventHandler<TwainTemplateEventArgs^>^ LoadTemplate

Event Data

The event handler receives an argument of type TwainTemplateEventArgs containing data related to this event. The following TwainTemplateEventArgs properties provide information specific to this event.

Property	Description
Capability	Gets the TwainCapability currently being processed by the event.

Remarks

This event is called after loading the capability from the file, but before the capability value has been set for the currently selected TWAIN source.

Example

using Leadtools; 
using Leadtools.Twain; 
 
public void LoadTemplateExample(IntPtr parent) 
{ 
   TwainSession session = new TwainSession(); 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None); 
 
   session.LoadTemplateFile(Path.Combine(LEAD_VARS.ImagesDir, "test.ltt")); 
   TwainCapability cap; 
 
   cap = new TwainCapability(); 
   cap.Information.ContainerType = Leadtools.Twain.TwainContainerType.OneValue; 
   cap.Information.Type = Leadtools.Twain.TwainCapabilityType.ImageTransferMechanism; 
   cap.OneValueCapability.ItemType = Leadtools.Twain.TwainItemType.Uint16; 
 
   cap.OneValueCapability.Value = Leadtools.Twain.TwainCapabilityValue.TransferMechanismNative; 
 
   session.SetCapability(cap, TwainSetCapabilityMode.Set); 
   session.SaveTemplateFile(Path.Combine(LEAD_VARS.ImagesDir, "Out_test.ltt")); 
   session.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Twain 
 
 
Public Sub LoadTemplateExample(ByVal parent As IntPtr) 
   Dim session As TwainSession = New TwainSession() 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None) 
 
   session.LoadTemplateFile(Path.Combine(LEAD_VARS.ImagesDir, "test.ltt")) 
   Dim cap As TwainCapability 
 
   cap = New TwainCapability() 
   cap.Information.ContainerType = Leadtools.Twain.TwainContainerType.OneValue 
   cap.Information.Type = Leadtools.Twain.TwainCapabilityType.ImageTransferMechanism 
   cap.OneValueCapability.ItemType = Leadtools.Twain.TwainItemType.Uint16 
 
   cap.OneValueCapability.Value = Leadtools.Twain.TwainCapabilityValue.TransferMechanismNative 
 
   session.SetCapability(cap, TwainSetCapabilityMode.Set) 
   session.SaveTemplateFile(Path.Combine(LEAD_VARS.ImagesDir, "Out_test.ltt")) 
   session.Shutdown() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

Requirements

Target Platforms

Reference

TwainSession Class

TwainSession Members

Leadtools.Twain.TwainSession.SaveTemplate

LoadTemplateFile Method

SaveTemplateFile(String) Method

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Help Version 20.0.2020.3.31

Leadtools.Twain Assembly

Introduction

Getting Started

Namespaces

Leadtools.Twain Namespace

Assemblies