TwainCapability Class

Provides properties for getting and setting information about the capability type and the container type.

Object Model

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class TwainCapability : System.IDisposable

'Declaration
 
Public Class TwainCapability 
   Implements System.IDisposable

'Usage
 
Dim instance As TwainCapability

public sealed class TwainCapability : IClosable //In WinRT the IDisposable interface is replaced by IClosable

function Leadtools.Twain.TwainCapability()

public ref class TwainCapability : public System.IDisposable

Remarks

For more information, refer to Freeing the TWAIN Session.

Example

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub TwainCapabilityExample(ByVal parent As IWin32Window)
   Dim twainSession As TwainSession = New TwainSession()
   twainSession.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)
   Dim capType As TwainCapabilityType() = twainSession.QuerySupportedCapabilities()

   Dim i As Integer = 0
   Do While i < capType.Length
      If capType(i) = TwainCapabilityType.ImageTransferMechanism Then
         Dim twCap As TwainCapability = New TwainCapability()
         twCap.Information.ContainerType = TwainContainerType.OneValue
         twCap.Information.Type = TwainCapabilityType.ImageTransferMechanism

         twCap.OneValueCapability.ItemType = TwainItemType.Int32
         twCap.OneValueCapability.Value = TwainCapabilityValue.TransferMechanismFile

         twainSession.SetCapability(twCap, TwainSetCapabilityMode.Set)
      End If
      i += 1
   Loop
   twainSession.Shutdown()
End Sub

public void TwainCapabilityExample(IWin32Window parent)
{
   TwainSession twainSession = new TwainSession();
   twainSession.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);
   TwainCapabilityType[] capType = twainSession.QuerySupportedCapabilities();

   for(int i = 0; i < capType.Length; i++)
   {
      if(capType[i] == TwainCapabilityType.ImageTransferMechanism)
      {
         TwainCapability twCap = new TwainCapability();
         twCap.Information.ContainerType = TwainContainerType.OneValue;
         twCap.Information.Type = TwainCapabilityType.ImageTransferMechanism;

         twCap.OneValueCapability.ItemType = TwainItemType.Int32;
         twCap.OneValueCapability.Value = TwainCapabilityValue.TransferMechanismFile;

         twainSession.SetCapability(twCap, TwainSetCapabilityMode.Set);
      }
   }
   twainSession.Shutdown();
}

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

TwainCapability Members
Leadtools.Twain Namespace
TwainArrayCapability Class
TwainEnumerationCapability Class
TwainRangeCapability Class
TwainOneValueCapability Class
TwainCapabilityBase Class
GetCapability Method
SetCapability Method