ImageUnit Property

Gets or sets the image unit value used to transfer images from the current TWAIN source.

Syntax

C#
Visual Basic
Java
Objective-C
C++

public TwainImageUnit ImageUnit {get; set;}

'Declaration

Public Property ImageUnit As TwainImageUnit

'Usage

Dim instance As TwainSession
Dim value As TwainImageUnit
 
instance.ImageUnit = value
 
value = instance.ImageUnit

public:
property TwainImageUnit ImageUnit {
   TwainImageUnit get();
   void set (    TwainImageUnit value);
}

Property Value

The image unit value used to transfer images from the current TWAIN source.

Remarks

This property internally gets or sets the image unit capability ICAP_UNITS. For more information on this capability, refer to http://www.twain.org and click on TWAIN Specification (Version 2.0).

Example

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

Copy Code

Imports Leadtools
Imports Leadtools.Twain

Public Sub ImageUnitPropertyExample(ByVal parent As IntPtr)
   Dim session As TwainSession = New TwainSession()
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)
   Dim unit As Integer = CInt(session.ImageUnit)
   Dim bpp As Integer = session.ImageBitsPerPixel

   If unit <> CInt(TwainCapabilityValue.UnitInches) Then
      session.ImageUnit = CType(TwainCapabilityValue.UnitInches, TwainImageUnit)
   End If

   If bpp <> 24 Then
      session.ImageBitsPerPixel = 24
   End If

   session.Shutdown()
End Sub

using Leadtools;
using Leadtools.Twain;

public void ImageUnitPropertyExample(IntPtr parent)
{
   TwainSession session = new TwainSession();
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);
   int unit = (int)session.ImageUnit;
   int bpp = session.ImageBitsPerPixel;

   if (unit != (int)TwainCapabilityValue.UnitInches)
      session.ImageUnit = (TwainImageUnit)TwainCapabilityValue.UnitInches;

   if (bpp != 24)
      session.ImageBitsPerPixel = 24;

   session.Shutdown();
}

Requirements

Target Platforms

Reference

TwainSession Class
TwainSession Members
Startup Method
Shutdown Method
Acquire Method
MaximumTransferCount Property
DuplexScanningMode Property
EnableDuplexScanning Property
AcquirePageOptions Property
ImageEffects Property
ImageBitsPerPixel Property
ImageFrame Property
IsTransferModeAvailable Method
TransferOptions Property
ShowProgressIndicator Method