本文整理汇总了C#中Windows.Storage.Streams.InMemoryRandomAccessStream.GetOutputStreamAt方法的典型用法代码示例。如果您正苦于以下问题：C# InMemoryRandomAccessStream.GetOutputStreamAt方法的具体用法？C# InMemoryRandomAccessStream.GetOutputStreamAt怎么用？C# InMemoryRandomAccessStream.GetOutputStreamAt使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Windows.Storage.Streams.InMemoryRandomAccessStream的用法示例。
在下文中一共展示了InMemoryRandomAccessStream.GetOutputStreamAt方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetImageSize
public async static void GetImageSize(this Stream imageStream)
{
var image = new BitmapImage();
byte[] imageBytes = Convert.FromBase64String(imageStream.ToBase64String());
MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);
ms.Write(imageBytes, 0, imageBytes.Length);
using (InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream())
{
using (DataWriter writer = new DataWriter(stream.GetOutputStreamAt(0)))
{
try
{
writer.WriteBytes(imageBytes);
await writer.StoreAsync();
}
catch (Exception)
{
// ignored
}
}
try
{
await image.SetSourceAsync(stream);
}
catch (Exception)
{
// ignored
}
}
ImageSize = new Size(image.PixelWidth, image.PixelHeight);
}示例2: GetBijinPicture
public async Task<BitmapImage> GetBijinPicture(string Path)
{
var date = DateTime.Now;
var url = "http://www.bijint.com/" + Path + "/tokei_images/" + date.ToString("HHmm") + ".jpg";
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Referrer = new Uri("http://www.bijint.com/" + Path);
BitmapImage bitmap;
using (var strm = await client.GetStreamAsync(new Uri(url)))
{
// BitmapImageインスタンスへはStream型をそのまま読み込ませることができないため、
// InMemoryRandomAccessStreamへソースストリームをコピーする
InMemoryRandomAccessStream ims = new InMemoryRandomAccessStream();
var output = ims.GetOutputStreamAt(0);
await RandomAccessStream.CopyAsync(strm.AsInputStream(), output);
// BitmapImageへソースを設定し、Imageコントロールで表示させる
bitmap = new BitmapImage();
bitmap.SetSource(ims);
}
return bitmap;
//var html = await client.GetStringAsync("http://www.bijint.com/kobe/cache/" + date.ToString("HHmm") + ".html");
//this.html.NavigateToString(html);
}示例3: Convert
public object Convert(object value, Type targetType, object parameter, string language)
{
if (value != null && value is byte[])
{
//WriteableBitmap bitmap = new WriteableBitmap(100, 100);
//System.IO.Stream bitmapStream = null;
//bitmapStream = bitmap.PixelBuffer.AsStream();
//bitmapStream.Position = 0;
//bitmapStream.Write(value as byte[], 0, (value as byte[]).Length);
//bitmapStream.Flush();
InMemoryRandomAccessStream randomAccessStream = new InMemoryRandomAccessStream();
DataWriter writer = new DataWriter(randomAccessStream.GetOutputStreamAt(0));
writer.WriteBytes(value as byte[]);
var x = writer.StoreAsync().AsTask().Result;
BitmapImage image = new BitmapImage();
image.SetSource(randomAccessStream);
return image;
}
return null;
}示例4: AsRandomAccessStreamAsync
public async static Task<IRandomAccessStream> AsRandomAccessStreamAsync(this Stream stream)
{
Stream streamToConvert = null;
if (!stream.CanRead)
{
throw new Exception("Cannot read the source stream-");
}
if (!stream.CanSeek)
{
MemoryStream memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
streamToConvert = memoryStream;
}
else
{
streamToConvert = stream;
}
DataReader dataReader = new DataReader(streamToConvert.AsInputStream());
streamToConvert.Position = 0;
await dataReader.LoadAsync((uint)streamToConvert.Length);
IBuffer buffer = dataReader.ReadBuffer((uint)streamToConvert.Length);
InMemoryRandomAccessStream randomAccessStream = new InMemoryRandomAccessStream();
IOutputStream outputstream = randomAccessStream.GetOutputStreamAt(0);
await outputstream.WriteAsync(buffer);
await outputstream.FlushAsync();
return randomAccessStream;
}示例5: GetBijinPicture
private async void GetBijinPicture()
{
var date = DateTime.Now;
var url = "http://www.bijint.com/jp/tokei_images/" + date.ToString("HHmm") + ".jpg";
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Referrer = new Uri("http://www.bijint.com/jp/");
using (var strm = await client.GetStreamAsync(new Uri(url)))
{
// BitmapImageインスタンスへはStream型をそのまま読み込ませることができないため、
// InMemoryRandomAccessStreamへソースストリームをコピーする
InMemoryRandomAccessStream ims = new InMemoryRandomAccessStream();
var output = ims.GetOutputStreamAt(0);
await RandomAccessStream.CopyAsync(strm.AsInputStream(), output);
// BitmapImageへソースを設定し、Imageコントロールで表示させる
var bitmap = new BitmapImage();
bitmap.SetSource(ims);
image.Source = bitmap;
// Save用にbyte配列に保存
ims.Seek(0);
imageBuffer = new byte[ims.Size];
IBuffer ibuffer = imageBuffer.AsBuffer();
await ims.ReadAsync(ibuffer, (uint)ims.Size, InputStreamOptions.None);
}
}示例6: ConvertToRandomAccessStream
public static async Task<IRandomAccessStream> ConvertToRandomAccessStream(Stream source)
{
Stream streamToConvert = null;
if (!source.CanRead)
throw new Exception("The source cannot be read.");
if (!source.CanSeek)
{
var memStream = new MemoryStream();
await source.CopyToAsync(memStream);
streamToConvert = memStream;
}
else
{
streamToConvert = source;
}
var reader = new DataReader(streamToConvert.AsInputStream());
streamToConvert.Position = 0;
await reader.LoadAsync((uint) streamToConvert.Length);
var buffer = reader.ReadBuffer((uint) streamToConvert.Length);
var randomAccessStream = new InMemoryRandomAccessStream();
var outputStream = randomAccessStream.GetOutputStreamAt(0);
await outputStream.WriteAsync(buffer);
await outputStream.FlushAsync();
return randomAccessStream;
}示例7: Convert
public object Convert(object value, Type targetType, object parameter, string language)
{
if (!(value is byte[]))
{
return null;
}
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
// Writes the image byte array in an InMemoryRandomAccessStream
// that is needed to set the source of BitmapImage.
using (DataWriter writer = new DataWriter(ms.GetOutputStreamAt(0)))
{
writer.WriteBytes((byte[])value);
// The GetResults here forces to wait until the operation completes
// (i.e., it is executed synchronously), so this call can block the UI.
writer.StoreAsync().GetResults();
}
var image = new BitmapImage();
image.SetSource(ms);
return image;
}
}示例8: Convert
public object Convert(object value, Type targetType, object parameter, string language)
{
if (value != null)
{
byte[] bytes = (byte[])value;
BitmapImage myBitmapImage = new BitmapImage();
if (bytes.Count() > 0)
{
InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream();
DataWriter writer = new DataWriter(stream.GetOutputStreamAt(0));
writer.WriteBytes(bytes);
writer.StoreAsync().GetResults();
myBitmapImage.SetSource(stream);
}
else
{
myBitmapImage.UriSource = new Uri("ms-appx:///Assets/firstBackgroundImage.jpg");
}
return myBitmapImage;
}
else
{
return new BitmapImage();
}
}示例9: GetBijinInfo
// TODO: 一分ごとに画像と名前を取得する
private async void GetBijinInfo()
{
var date = this.Current;
getKawaii(this.path + this.Current.ToString("HHmm"));
var url = "http://www.bijint.com/" + Path + "/tokei_images/" + date.ToString("HHmm") + ".jpg";
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Referrer = new Uri("http://www.bijint.com/" + path);
using (var strm = await client.GetStreamAsync(new Uri(url)))
{
// BitmapImageインスタンスへはStream型をそのまま読み込ませることができないため、
// InMemoryRandomAccessStreamへソースストリームをコピーする
InMemoryRandomAccessStream ims = new InMemoryRandomAccessStream();
var output = ims.GetOutputStreamAt(0);
await RandomAccessStream.CopyAsync(strm.AsInputStream(), output);
// BitmapImageへソースを設定し、Imageコントロールで表示させる
var bitmap = new BitmapImage();
bitmap.SetSource(ims);
this.Image = bitmap;
}
var html = await client.GetStringAsync("http://www.bijint.com/" + Path + "/cache/" + date.ToString("HHmm") + ".html");
var lines = html.Split('\n').Select(input => input.Trim()).Where(input => input != "\r" || input != "").ToList();
var nameLineIndex = lines.IndexOf("<thead>") + 2;
var nameLine = lines[nameLineIndex];
var temp = nameLine.Substring(0, nameLine.Length - 5);
var lastEnd = temp.LastIndexOf('>');
this.Subtitle = temp.Substring(lastEnd + 1);
}示例10: Update
private async void Update()
{
var writer1 = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = new ZXing.Common.EncodingOptions
{
Height = 200,
Width = 200
},
};
var image = writer1.Write(Text);//Write(text);
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
using (DataWriter writer = new DataWriter(ms.GetOutputStreamAt(0)))
{
writer.WriteBytes(image);
await writer.StoreAsync();
}
var output = new BitmapImage();
await output.SetSourceAsync(ms);
ImageSource = output;
}
}示例11: Stream2IRandomAccessStream
public async Task<IRandomAccessStream> Stream2IRandomAccessStream(byte[] bytes)
{
InMemoryRandomAccessStream memoryStream = new InMemoryRandomAccessStream();
DataWriter datawriter = new DataWriter(memoryStream.GetOutputStreamAt(0));
datawriter.WriteBytes(bytes);
await datawriter.StoreAsync();
return memoryStream;
}示例12: ColorThread
private async void ColorThread()
{
try
{
var reader = new DataReader( Client.InputStream );
reader.InputStreamOptions = InputStreamOptions.Partial;
reader.ByteOrder = ByteOrder.LittleEndian;
while ( IsConnected ) {
await reader.LoadAsync( 4 );
var size = reader.ReadUInt32();
await reader.LoadAsync( size );
byte[] bytes = new byte[size];
reader.ReadBytes( bytes );
MemoryStream ms = new MemoryStream( bytes );
BinaryReader br = new BinaryReader(ms);
ColorFrameReadyEventArgs args = new ColorFrameReadyEventArgs();
ColorFrameData cfd = new ColorFrameData();
cfd.Format = (ImageFormat)br.ReadInt32();
cfd.ImageFrame = br.ReadColorImageFrame();
MemoryStream msData = new MemoryStream( bytes, (int)ms.Position, (int)(ms.Length - ms.Position) );
if (cfd.Format == ImageFormat.Raw)
{
cfd.RawImage = ms.ToArray();
}
else
{
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
DataWriter dw = new DataWriter(ras.GetOutputStreamAt(0));
dw.WriteBytes(msData.ToArray());
await dw.StoreAsync();
// Set to the image
BitmapImage bImg = new BitmapImage();
bImg.SetSource(ras);
cfd.BitmapImage = bImg;
}
ColorFrame = cfd;
args.ColorFrame = cfd;
if (ColorFrameReady != null)
{
ColorFrameReady(this, args);
}
}
}
catch(IOException)
{
Disconnect();
}
}示例13: AsInMemoryRandomAccessStream
public static InMemoryRandomAccessStream AsInMemoryRandomAccessStream(byte[] data)
{
InMemoryRandomAccessStream randomAccessStream = new InMemoryRandomAccessStream();
using (DataWriter writer = new DataWriter(randomAccessStream.GetOutputStreamAt(0)))
{
writer.WriteBytes(data);
writer.StoreAsync().GetResults();
}
return randomAccessStream;
}示例14: ConvertToRandomAccessStream
public static async Task<IRandomAccessStream> ConvertToRandomAccessStream(MemoryStream memoryStream)
{
var randomAccessStream = new InMemoryRandomAccessStream();
var outputStream = randomAccessStream.GetOutputStreamAt(0);
var dw = new DataWriter(outputStream);
var task = Task.Factory.StartNew(() => dw.WriteBytes(memoryStream.ToArray()));
await task;
await dw.StoreAsync();
await outputStream.FlushAsync();
return randomAccessStream;
}示例15: DrawImage
public void DrawImage(Point center, Size s, Byte[] img_bytes)
{
InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream();
DataWriter writer = new DataWriter(ms.GetOutputStreamAt(0));
writer.WriteBytes(img_bytes);
writer.StoreAsync().GetResults();
BitmapImage image = new BitmapImage();
image.SetSource(ms);
DrawImage(center, s, image);
}