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ChangeHeight Method

Summary
Increases or decreases the allocated height of an image.
Syntax
C#
VB
Objective-C
C++
Java
public void ChangeHeight( 
   int height 
) 
Public Sub ChangeHeight( _ 
   ByVal height As Integer _ 
)  
- (BOOL)changeHeight:(NSInteger)newHeight error:(NSError **)error 
public void changeHeight(int height) 
public: 
void ChangeHeight(  
   int height 
)  

Parameters

height
New height in pixels.

Remarks

You can use this method in a callback routine to adjust the allocation when loading an image of unknown height.

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Dicom; 
using Leadtools.Drawing; 
using Leadtools.Controls; 
using Leadtools.Svg; 
 
 
public void ChangeHeightExample() 
{ 
	RasterCodecs codecs = new RasterCodecs(); 
	// Load the image 
	RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
	Console.WriteLine(string.Format("Height: {0}", image.Height)); 
	image.ChangeHeight(image.Height / 2); 
	Console.WriteLine(string.Format("Height: {0}", image.Height)); 
 
	image.Dispose(); 
	codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Core 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Controls 
Imports Leadtools.Dicom 
Imports Leadtools.Drawing 
Imports Leadtools.Svg 
 
Public Sub ChangeHeightExample() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   ' Load the image 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")) 
 
   Console.WriteLine(String.Format("Height: {0}", image.Height)) 
   image.ChangeHeight(image.Height \ 2) 
   Console.WriteLine(String.Format("Height: {0}", image.Height)) 
 
   image.Dispose() 
   codecs.Dispose() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class 
Requirements

Target Platforms

Help Version 21.0.2021.3.5
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