public event EventHandler<ColorResolutionCommandDataEventArgs> Data
typedef void (^LTColorResolutionCommandDataEvent)(LTRasterImage * _Nullable image, NSInteger lines, NSData *data, BOOL *cancel)
- (BOOL)run:(LTRasterImage *)image
progress:(nullable LTRasterCommandProgress)progressHandler
dataEvent:(nullable LTColorResolutionCommandDataEvent)dataEventHandler
error:(NSError **)error
synchronized public void addColorResolutionCommandDataListener(ColorResolutionCommandDataListener listener)
synchronized public void removeColorResolutionCommandDataListener(ColorResolutionCommandDataListener listener)
public:
event EventHandler<ColorResolutionCommandDataEventArgs^>^ Data
def Data(sender,e): # sender: ColorResolutionCommand e: ColorResolutionCommandDataEventArgs
The event handler receives an argument of type ColorResolutionCommandDataEventArgs containing data related to this event. The following ColorResolutionCommandDataEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Cancel | Gets or sets a value indicating whether to abort the color resolution command. |
You can use this event to handle the converted image data that the ColorResolutionCommand has written to a buffer.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
public void ColorResolutionCommandExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_colorres8.bmp");
string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_colorres4.bmp");
// Load the source image from disk
RasterImage image = codecs.Load(srcFileName);
// First color-res it to 8 bits per pixel using the Netscape palette into a seperate image
ColorResolutionCommand cmd = new ColorResolutionCommand();
cmd.Mode = ColorResolutionCommandMode.CreateDestinationImage;
cmd.BitsPerPixel = 8;
cmd.Order = RasterByteOrder.Rgb;
cmd.DitheringMethod = RasterDitheringMethod.None;
cmd.PaletteFlags = ColorResolutionCommandPaletteFlags.UsePalette;
cmd.SetPalette(RasterPalette.Netscape());
cmd.Run(image);
RasterImage destImage = cmd.DestinationImage;
Assert.IsTrue(destImage.BitsPerPixel == 8);
// Save it to disk
codecs.Save(destImage, destFileName1, RasterImageFormat.Bmp, 8);
destImage.Dispose();
// Now color-res the image in-place to 4-bits per pixel using the Optimized palette
cmd.Mode = ColorResolutionCommandMode.InPlace;
cmd.BitsPerPixel = 4;
cmd.Order = RasterByteOrder.Rgb;
cmd.DitheringMethod = RasterDitheringMethod.None;
cmd.PaletteFlags = ColorResolutionCommandPaletteFlags.Optimized;
cmd.Run(image);
Assert.IsTrue(image.BitsPerPixel == 4);
// Save it to disk
codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 4);
// Clean Up
destImage.Dispose();
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
Your email has been sent to support! Someone should be in touch! If your matter is urgent please come back into chat.
Chat Hours:
Monday - Friday, 8:30am to 6pm ET
Thank you for your feedback!
Please fill out the form again to start a new chat.
All agents are currently offline.
Chat Hours:
Monday - Friday
8:30AM - 6PM EST
To contact us please fill out this form and we will contact you via email.