{"id":4983,"date":"2013-07-04T15:28:50","date_gmt":"2013-07-03T21:28:50","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=4983"},"modified":"2013-07-04T15:33:06","modified_gmt":"2013-07-04T06:33:06","slug":"win8-1-rendertargetbitmap%e3%82%af%e3%83%a9%e3%82%b9%e3%81%a7%e3%80%81xaml%e3%82%92%e3%83%93%e3%83%83%e3%83%88%e3%83%9e%e3%83%83%e3%83%97%e5%bd%a2%e5%bc%8f%e3%81%a7%e4%bf%9d%e5%ad%98%e3%81%99","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/4983","title":{"rendered":"[win8.1] RenderTargetBitmap\u30af\u30e9\u30b9\u3067\u3001XAML\u3092\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u5f62\u5f0f\u3067\u4fdd\u5b58\u3059\u308b"},"content":{"rendered":"<p>\nWPF\u306b\u306f RenderTargetBitmap \u30af\u30e9\u30b9\u304c\u3042\u3063\u3066\u3001XAML\u306e\u8981\u7d20\u3092\u6307\u5b9a\u3057\u3066\u753b\u50cf\u3092\u4fdd\u5b58\u3067\u304d\u305f\u306e\u3067\u3059\u304c\u3001\u306a\u305c\u304b Windows 8 \u3067\u306f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u304c\u3001Windows 8.1 \u306b\u306a\u3063\u3066\u3001\u3053\u308c\u304c\u5c0e\u5165\u3055\u308c\u305f\u306e\u3067\u30b9\u30c8\u30a2\u30a2\u30d7\u30ea\u3067\u304a\u7d75\u304b\u304d\u30c4\u30fc\u30eb\u304c\u4f5c\u308c\u307e\u3059\u3088\u3002\u3063\u3066\u306e\u304c\u3001\u4eca\u56de\u306e\u5909\u66f4\u3067\u4e00\u756a\u5927\u304d\u3044\u304b\u3068&#8230;\u3044\u3084\u3001\u305d\u3046\u3044\u3046\u65b9\u3082\u3044\u3089\u3063\u3057\u3083\u308b\u3068\u601d\u3044\u307e\u3059\u3002\n<\/p>\n<p>\nXAML render to bitmap sample (Windows 8.1)<br \/>\n<a href=\"http:\/\/code.msdn.microsoft.com\/windowsapps\/XAML-render-to-bitmap-dd4f549f\">http:\/\/code.msdn.microsoft.com\/windowsapps\/XAML-render-to-bitmap-dd4f549f<\/a>\n<\/p>\n<p>\n\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u3068\u3001\u52d5\u7684\u306b\u77e9\u5f62\u3092\u8ffd\u52a0\u3055\u305b\u305f\u5f8c grid \u3092\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002<br \/>\n\u3042\u308c\u3053\u308c\u3068\u3001\u3054\u3061\u3083\u3054\u3061\u3083\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u306a\u306e\u3067\u3001\u3070\u3063\u3055\u308a\u3068\u524a\u3063\u3066\u3057\u307e\u3063\u3066\u3042\u3089\u304b\u3058\u3081 Canvas \u306b Image \u3084\u3089 TextBlock \u3084\u3089\u3092\u8cbc\u308a\u4ed8\u3051\u3066\u304a\u3044\u3066\u3001PNG\u5f62\u5f0f\u3067\u4fdd\u5b58\u3059\u308b\u30bd\u30fc\u30b9\u304c\u4ee5\u4e0b\u3067\u3059\u3002\n<\/p>\n<pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\r\nprivate async void Button_Click(object sender, RoutedEventArgs e)\r\n{\r\n    \/\/ Render to an image at the current system scale and retrieve pixel contents\r\n    RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();\r\n    await renderTargetBitmap.RenderAsync(this.panel);\r\n    var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();\r\n\r\n    var savePicker = new FileSavePicker();\r\n    savePicker.DefaultFileExtension = &amp;quot;.png&amp;quot;;\r\n    savePicker.FileTypeChoices.Add(&amp;quot;.png&amp;quot;, new List&lt;string&gt; { &amp;quot;.png&amp;quot; });\r\n    savePicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;\r\n    savePicker.SuggestedFileName = &amp;quot;snapshot.png&amp;quot;;\r\n\r\n    \/\/ Prompt the user to select a file\r\n    var saveFile = await savePicker.PickSaveFileAsync();\r\n\r\n    \/\/ Verify the user selected a file\r\n    if (saveFile == null)\r\n        return;\r\n\r\n    \/\/ Encode the image to the selected file on disk\r\n    using (var fileStream = await saveFile.OpenAsync(FileAccessMode.ReadWrite))\r\n    {\r\n        var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, fileStream);\r\n\r\n        encoder.SetPixelData(\r\n            BitmapPixelFormat.Bgra8,\r\n            BitmapAlphaMode.Ignore,\r\n            (uint)renderTargetBitmap.PixelWidth,\r\n            (uint)renderTargetBitmap.PixelHeight,\r\n            DisplayInformation.GetForCurrentView().LogicalDpi,\r\n            DisplayInformation.GetForCurrentView().LogicalDpi,\r\n            pixelBuffer.ToArray());\r\n\r\n        await encoder.FlushAsync();\r\n    }\r\n}\r\n<\/pre>\n<p>\n\u30b5\u30f3\u30d7\u30eb\u3088\u308a\u629c\u7c8b&#8230;\u3068\u3044\u3046\u304b\u3001\u305d\u306e\u307e\u307e\u3067\u3059\u306d\u3002RenderTargetBitmap \u30af\u30e9\u30b9\u306e RenderAsync \u30e1\u30bd\u30c3\u30c9\u3067 XAML \u8981\u7d20\u304b\u3089\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u53d6\u3063\u3066\u304d\u3066\u3001GetPixelsAsync \u30e1\u30bd\u30c3\u30c9\u3067 byte \u914d\u5217\u306b\u3057\u307e\u3059\u3002\u5b9f\u306b\u7c21\u5358\u3002\u3002\u5fc5\u8981\u306a namespace \u306f\u3001\u9069\u5b9c VS2013 preview \u3092\u4f7f\u3063\u3066\u52a0\u3048\u3066\u304f\u3060\u3055\u3044\u3002\n<\/p>\n<p>\n\u30c7\u30b6\u30a4\u30f3\u6642\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u753b\u50cf\u3092\u8cbc\u308a\u4ed8\u3051\u307e\u3059\u3002Opacity \u3067\u534a\u900f\u660e\u306b\u3057\u305f\u308a\u3068\u304b\u8272\u3005\u3002\u56de\u8ee2\u3055\u305b\u3066\u3082\u5927\u4e08\u592b\u3067\u3059\u3002\n<\/p>\n<p><a href='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_01org.jpg'><img border='0' src='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_01thum.jpg'\/><\/a><\/p>\n<p>\n\u5b9f\u884c\u6642\n<\/p>\n<p><a href='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_02org.jpg'><img border='0' src='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_02thum.jpg'\/><\/a><\/p>\n<p>\n\u305d\u3057\u3066\u3001Save \u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u4fdd\u5b58\u3057\u305f\u7d50\u679c\n<\/p>\n<p><a href='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_03org.jpg'><img border='0' src='http:\/\/www.moonmile.net\/blog\/wp-content\/uploads\/2013\/07\/wpid-dworkblogimage20130704_03thum.jpg'\/><\/a><\/p>\n<p>\n\u30d0\u30ab\u30d0\u30ab\u3057\u3044\u307b\u3069\u7c21\u5358\u306b\u3067\u304d\u307e\u3059&#8230;\u3064\u30fc\u304b\u3001\u3053\u308c\u304c Windows 8 \u3067\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u304c\u4e0d\u601d\u8b70\u306a\u3050\u3089\u3044\u3002<br \/>\n\u3061\u306a\u307f\u306b\u753b\u9762\u306e\u5916\u306b\u51fa\u3066\u3057\u307e\u3063\u305f\u6642\u306f\u3069\u3046\u306a\u308b\u306e\u304b\uff1f\u3068\u3044\u3046\u3068\u3001\u5927\u4e08\u592b\u3067\u3059\u3002\u304d\u3061\u3093\u3068 RenderTargetBitmap \u304c\u5bfe\u8c61\u306b\u3057\u3066\u3044\u308b XAML \u914d\u4e0b\u3092\u304d\u3061\u3093\u3068\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u3066\u304f\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u306f\u307f\u51fa\u305f\u5206\u3082\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<br \/>\n\u3053\u308c\u3067\u30b9\u30c8\u30a2\u7248\u306e\u304a\u7d75\u304b\u304d\u30c4\u30fc\u30eb\u4f5c\u6210\u304c\u306f\u304b\u3069\u308a\u307e\u3059\u306d\u3002\n<\/p>\n<p>\n\u30b5\u30f3\u30d7\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306f\u4ee5\u4e0b\u304b\u3089\u3069\u3046\u305e<br \/>\nPanelToBitmap-v0.1.zip<br \/>\n<a href=\"http:\/\/sdrv.ms\/1aEOZeu\">http:\/\/sdrv.ms\/1aEOZeu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>WPF\u306b\u306f RenderTargetBitmap \u30af\u30e9\u30b9\u304c\u3042\u3063\u3066\u3001XAML\u306e\u8981\u7d20\u3092\u6307\u5b9a\u3057\u3066\u753b\u50cf\u3092\u4fdd\u5b58\u3067\u304d\u305f\u306e\u3067\u3059\u304c\u3001\u306a\u305c\u304b Windows 8 \u3067\u306f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u304c\u3001Windows 8.1 \u306b\u306a\u3063\u3066\u3001\u3053\u308c\u304c\u5c0e\u5165\u3055\u308c\u305f &hellip; <a href=\"http:\/\/www.moonmile.net\/blog\/archives\/4983\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[23,52],"tags":[],"class_list":["post-4983","post","type-post","status-publish","format-standard","hentry","category-csharp","category-winrt"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/4983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=4983"}],"version-history":[{"count":1,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/4983\/revisions"}],"predecessor-version":[{"id":4984,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/4983\/revisions\/4984"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=4983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=4983"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=4983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}