minihaa.blogg.se - How to encode a message in a picture

JpegBitmapEncoder encoder = new JpegBitmapEncoder() Creates a new empty image with the pre-defined paletteīitmapSource image = BitmapSource.Create(įileStream stream = new FileStream("new.jpg", FileMode.Create) MyTextBlock->Text = "Codec Author is: " + encoder->CodecInfo->Author->ToString() Įncoder->Frames->Add(BitmapFrame::Create(image)) īyte pixels = new byte īitmapPalette myPalette = BitmapPalettes.Halftone256 TextBlock^ myTextBlock = gcnew System::Windows::Controls::TextBlock()

JpegBitmapEncoder^ encoder = gcnew JpegBitmapEncoder() System::IO::FileStream^ stream = gcnew System::IO::FileStream("new.jpg", FileMode::Create) Creates a new empty image with the pre-defined palette.īitmapSource^ image = BitmapSource::Create( int width = 128 Īrray^ pixels = gcnew array(height * stride) īitmapPalette^ myPalette = BitmapPalettes::Halftone256 This example demonstrates how to encode a BitmapSource into a JPEG image using a JpegBitmapEncoder. JpegBitmapDecoder decoder = new JpegBitmapDecoder(imageStreamSource, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default) īitmapSource bitmapSource = decoder.Frames ĭim imageStreamSource As New FileStream("tulipfarm.jpg", FileMode.Open, FileAccess.Read, FileShare.Read)ĭim decoder As New JpegBitmapDecoder(imageStreamSource, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default)ĭim bitmapSource As BitmapSource = decoder.Frames(0) Stream imageStreamSource = new FileStream("tulipfarm.jpg", FileMode.Open, FileAccess.Read, FileShare.Read)

MyImage->Margin = System::Windows::Thickness(20) JpegBitmapDecoder^ decoder = gcnew JpegBitmapDecoder(imageStreamSource, BitmapCreateOptions::PreservePixelFormat, BitmapCacheOption::Default) īitmapSource^ bitmapSource = decoder->Frames

Stream^ imageStreamSource = gcnew FileStream("tulipfarm.jpg", FileMode::Open, FileAccess::Read, FileShare::Read) This example demonstrates how to decode a JPEG image using a JpegBitmapDecoder from a FileStream. The following examples show how to decode and encode a JPEG image using the specific JpegBitmapDecoder and JpegBitmapEncoder objects.