CodecsPngLoadOptions Class (original) (raw)

Summary

Provides options specifically for loading PNG images.

Syntax

C#

Objective-C

C++/CLI

Java

Python

public class CodecsPngLoadOptions  
@interface LTCodecsPngLoadOptions : NSObject 
public class CodecsPngLoadOptions 
public ref class CodecsPngLoadOptions  
class CodecsPngLoadOptions: 

Example

using Leadtools; using Leadtools.Codecs; using Leadtools.ImageProcessing.Core; public void CodecsPngOptionsExample() { RasterCodecs codecs = new RasterCodecs(); string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); RasterImage image = codecs.Load(srcFileName); codecs.Options.Png.Load.SetTrnsChunk(codecs.Options.Png.Load.GetTrnsChunk()); // CodecsPngOptions & CodecsPngLoadOptions reference // save with maximum quality codecs.Options.Png.Save.QualityFactor = 1; // CodecsPngSaveOptions reference codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "quality.png"), RasterImageFormat.Png, image.BitsPerPixel); // save with maximum compression codecs.Options.Png.Save.QualityFactor = 9; codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "compression.png"), RasterImageFormat.Png, image.BitsPerPixel); // calculate the stamp size to fit into 320 by 240 pixels keeping the aspect ratio LeadRect rc = new LeadRect(0, 0, 320, 240); rc = RasterImage.CalculatePaintModeRectangle(image.ImageWidth, image.ImageHeight, rc, RasterPaintSizeMode.FitAlways, RasterPaintAlignMode.Near, RasterPaintAlignMode.Near); codecs.Options.Png.Save.QualityFactor = 4; codecs.Options.Png.Save.SaveWithStamp = true; codecs.Options.Png.Save.StampWidth = rc.Width; codecs.Options.Png.Save.StampHeight = rc.Height; codecs.Options.Png.Save.StampBitsPerPixel = 24; codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "WithStamp.png"), RasterImageFormat.Png, image.BitsPerPixel); // Clean up image.Dispose(); codecs.Dispose(); } static class LEAD_VARS { public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; }

Leadtools.Codecs Assembly

CompactFile(Stream,Stream,int,int,bool,int,int,bool,int,CodecsSavePageMode,bool,bool) Method

CompactFile(Stream,Stream,int,int,bool,long,int,bool,long,CodecsSavePageMode,bool,bool,bool) Method

CompactFile(string,string,int,int,bool,int,int,bool,int,CodecsSavePageMode,bool,bool) Method

CompactFile(string,string,int,int,bool,long,int,bool,long,CodecsSavePageMode,bool,bool,bool) Method

StartCompress(int,int,int,RasterByteOrder,RasterViewPerspective,int,byte[],int,int,CodecsCompression,CodecsCompressDataCallback) Method