ReadLoadResolutions(Stream) Method (original) (raw)
Summary
Examines a stream to determine which resolutions it contains.
Syntax
C#
Objective-C
C++/CLI
Java
Python
- (nullable NSArray<NSValue/*CGSize*/ *> *)loadResolutionsForStream:(LTLeadStream *)stream error:(NSError **)error public LeadSize[] readLoadResolutions(ILeadStream stream) def ReadLoadResolutions(self,stream): Parameters
stream
A Stream containing the data of the image file to query.
Return Value
A LeadSize structure containing the available resolutions.
Example
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Svg;
void ReadLoadResolutionsExample(string jbigFileName)
{
RasterCodecs codecs = new RasterCodecs();
// Get the number of resolutions (sizes) available in this file
LeadSize[] resolution = codecs.ReadLoadResolutions(jbigFileName);
if (resolution.Length > 0)
{
Debug.WriteLine("{0} resolutions available", resolution.Length);
for (int i = 0; i < resolution.Length; i++)
Debug.WriteLine("{0} by {1}", resolution[i].Width, resolution[i].Height);
// Set the size to load, the smallest size in this case */
codecs.Options.Jpeg2000.Load.J2kResolution = resolution[0];
// Get the info in of the image to show its original size
CodecsImageInfo info = codecs.GetInformation(jbigFileName, false);
Debug.WriteLine("Size of image according to GetInformation is {0} by {1}", info.Width, info.Height);
// Load the image, keeping the bits per pixel of the file
RasterImage image = codecs.Load(jbigFileName);
Debug.WriteLine("Size of image loaded is {0} by {1}", image.Width, image.Height);
image.Dispose();
}
else
Debug.WriteLine("No resolutions found");
// Clean up
codecs.Dispose();
}
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