ModifyRgbResponse Method

Summary

Sets the RGB elements to be used when transferring data from the current TWAIN source.

Syntax
C#
VB
C++
public void ModifyRgbResponse( 
   IList<TwainElement8> elements, 
   int bitsPerPixel, 
   TwainRgbResponseFlags flags 
) 
Public Sub ModifyRgbResponse( _ 
   ByVal elements As IList(Of TwainElement8), _ 
   ByVal bitsPerPixel As Integer, _ 
   ByVal flags As TwainRgbResponseFlags _ 
)  
public: 
void ModifyRgbResponse(  
   IList<TwainElement8>^ elements, 
   int bitsPerPixel, 
   TwainRgbResponseFlags flags 
)  

Parameters

elements
Array of RGB elements that contain the data to be set.

bitsPerPixel
Bits per pixel to be set. This is used to determine the number of RGB elements.

flags
Flags that indicate the function behavior.

Remarks

Sets the RGB elements used when transferring data from the current TWAIN source.

Example
C#
VB
using Leadtools; 
using Leadtools.Twain; 
 
public void ModifyRgbResponseExample(IntPtr parent) 
{ 
   TwainSession session = new TwainSession(); 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None); 
 
   List<TwainElement8> rgbElements = null; 
   TwainElement8 tempElement = new TwainElement8(); 
   tempElement.Index = 0; 
   tempElement.Channel1 = 0; 
   tempElement.Channel2 = 0; 
   tempElement.Channel3 = 0; 
   rgbElements.Add(tempElement); 
 
   tempElement.Index = 1; 
   tempElement.Channel1 = 255; 
   tempElement.Channel2 = 255; 
   tempElement.Channel3 = 255; 
   rgbElements.Add(tempElement); 
 
   try 
   { 
      session.ModifyRgbResponse(rgbElements, 1, TwainRgbResponseFlags.TwainRgbResponseSet); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
 
   session.Shutdown(); 
} 
Imports Leadtools 
Imports Leadtools.Twain 
 
Public Sub ModifyRgbResponseExample(ByVal parent As IntPtr) 
   Dim session As TwainSession = New TwainSession() 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None) 
 
   Dim rgbElements As List(Of TwainElement8) = Nothing 
   Dim tempElement As TwainElement8 = New TwainElement8() 
   tempElement.Index = 0 
   tempElement.Channel1 = 0 
   tempElement.Channel2 = 0 
   tempElement.Channel3 = 0 
   rgbElements.Add(tempElement) 
 
   tempElement.Index = 1 
   tempElement.Channel1 = 255 
   tempElement.Channel2 = 255 
   tempElement.Channel3 = 255 
   rgbElements.Add(tempElement) 
 
   Try 
      session.ModifyRgbResponse(rgbElements, 1, TwainRgbResponseFlags.TwainRgbResponseSet) 
   Catch ex As Exception 
      MessageBox.Show(ex.Message) 
   End Try 
 
   session.Shutdown() 
End Sub 

Requirements

Target Platforms

Help Version 20.0.2019.9.19
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Leadtools.Twain Assembly