Leadtools TWAIN (Leadtools.Twain assembly)

LoadTemplate Event

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Example 





Occurs when loading TWAIN capabilities from the currently selected TWAIN source to a template file by calling the LoadTemplateFile method.
Syntax
public event EventHandler<TwainTemplateEventArgs> LoadTemplate
'Declaration
 
Public Event LoadTemplate As EventHandler(Of TwainTemplateEventArgs)
'Usage
 
Dim instance As TwainSession
Dim handler As EventHandler(Of TwainTemplateEventArgs)
 
AddHandler instance.LoadTemplate, handler

            

            
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.

PropertyDescription
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
Copy Code  
Imports Leadtools
Imports Leadtools.Twain

Public Sub LoadTemplateExample(ByVal parent As IWin32Window)
   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
using Leadtools;
using Leadtools.Twain;

public void LoadTemplateExample(IWin32Window 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";
}
Requirements

Target Platforms

See Also

Reference

TwainSession Class
TwainSession Members
Leadtools.Twain.TwainSession.SaveTemplate
LoadTemplateFile Method
SaveTemplateFile(String) Method

 

 


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