{"id":53651,"date":"2024-12-03T13:25:04","date_gmt":"2024-12-03T05:25:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53651\/"},"modified":"2024-12-03T13:25:04","modified_gmt":"2024-12-03T05:25:04","slug":"%e5%89%8d%e7%ab%af%e9%a1%b5%e9%9d%a2%e6%88%aa%e5%9b%be%ef%bc%9a%e5%a6%82%e4%bd%95%e8%b6%85%e8%b6%8ahtml-to-canvas%e5%ae%9e%e7%8e%b0%e6%9b%b4%e5%bc%ba%e5%a4%a7%e7%9a%84%e5%b1%8f%e5%b9%95%e6%88%aa","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53651\/","title":{"rendered":"\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f<\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241203\/1733192857674e6c9913e59.jpg\" class=\"aligncenter\" title=\"\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f\u63d2\u56fe\" alt=\"\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u524d\u7aef\u5b9e\u73b0\u9875\u9762\u622a\u56fe\uff1a\u7a81\u7834 html-to-canvas \u65b9\u6848<\/strong><\/p>\n<p>\u5728\u524d\u7aef\u4e2d\uff0c\u5b9e\u73b0\u9875\u9762\u622a\u56fe\u662f\u4e00\u4e2a\u5e38\u89c1\u9700\u6c42\uff0c\u4f46\u4f20\u7edf\u7684 html-to-canvas \u65b9\u6848\u5e76\u4e0d\u603b\u662f\u6ee1\u8db3\u8981\u6c42\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd\u66f4\u5f3a\u5927\u7684\u65b9\u6cd5\uff0c\u8ba9\u4f60\u76f4\u63a5\u622a\u53d6\u5c4f\u5e55\u56fe\u50cf\uff0c\u5c31\u50cf\u4f7f\u7528 windows \u622a\u56fe\u5de5\u5177\u4e00\u6837\u3002<\/p>\n<p><strong>\u4f7f\u7528 screen capture api<\/strong><\/p>\n<p>screen capture api \u5141\u8bb8\u4f60\u6355\u83b7\u5c4f\u5e55\u6d41\uff0c\u5305\u62ec\u9875\u9762\u5185\u5bb9\u548c\u5176\u4ed6\u5c4f\u5e55\u5143\u7d20\u3002\u4f7f\u7528\u6b64 api\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u66f4\u7075\u6d3b\u548c\u5f3a\u5927\u7684\u622a\u56fe\u5de5\u5177\u3002<\/p>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li>\u9996\u5148\uff0c\u786e\u4fdd\u4f60\u7684\u6d4f\u89c8\u5668\u652f\u6301\u8be5 api\u3002\u76ee\u524d\uff0cfirefox \u4e0d\u652f\u6301\uff0c\u800c\u5176\u4ed6\u4e3b\u6d41\u6d4f\u89c8\u5668\u90fd\u6709\u5f88\u597d\u7684\u652f\u6301\u3002<\/li>\n<li>\u4f7f\u7528 navigator.mediadevices.getdisplaymedia() \u83b7\u53d6\u5c4f\u5e55\u6d41\u3002<\/li>\n<li>\u5c06\u5c4f\u5e55\u6d41\u5206\u914d\u7ed9\u89c6\u9891\u5143\u7d20\u3002<\/li>\n<li>\u521b\u5efa\u4e00\u4e2a\u753b\u5e03\u5143\u7d20\uff0c\u5e76\u5c06\u89c6\u9891\u6d41\u7ed8\u5236\u5230\u753b\u5e03\u4e0a\u3002<\/li>\n<li>\u4ece\u753b\u5e03\u83b7\u53d6\u622a\u56fe\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3a\u56fe\u50cf\u6587\u4ef6\u6216\u76f4\u63a5\u5171\u4eab\u3002<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>navigator.mediaDevices.getDisplayMedia()\n  .then(stream =&gt; {\n    const video = document.createElement('video');\n    video.srcObject = stream;\n    video.play();\n\n    const canvas = document.createElement('canvas');\n    const ctx = canvas.getContext('2d');\n    canvas.width = video.videoWidth;\n    canvas.height = video.videoHeight;\n\n    ctx.drawImage(video, 0, 0);\n\n    const imageData = canvas.toDataURL('image\/png');\n  })\n  .catch(error =&gt; {\n    console.error(error);\n  });<\/pre>\n<p><strong>\u517c\u5bb9\u6027\uff1a<\/strong><\/p>\n<p>screen capture api \u7684\u517c\u5bb9\u6027\u76f8\u5f53\u51fa\u8272\uff0c\u4f46\u4e0d\u9002\u7528\u4e8e\u79fb\u52a8\u8bbe\u5907\u3002\u5728 pc \u7aef\uff0c\u53ea\u6709 firefox \u4e0d\u652f\u6301\u3002<\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u53ef\u4ee5\u76f4\u63a5\u622a\u53d6\u5c4f\u5e55\u56fe\u50cf\uff0c\u5305\u62ec\u9875\u9762\u5185\u5bb9\u548c\u5176\u4ed6\u5143\u7d20\u3002<\/li>\n<li>\u9002\u7528\u4e8e\u5404\u79cd\u9875\u9762\u5e03\u5c40\u548c\u8bbe\u8ba1\u3002<\/li>\n<li>\u4e0d\u4f1a\u53d7\u5230 html-to-canvas \u9650\u5236\u3002<\/li>\n<\/ul>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u9875\u9762\u521d\u59cb\u5316\u65f6\uff0cscript\u5916\u8054\u6807\u7b7e\u7684\u52a0\u8f7d\u987a\u5e8f\u662f\u5426\u4e0e\u5185\u90e8js\u7684\u987a\u5e8f\u76f8\u5173\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f \u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1a\u5982\u4f55\u8d85\u8d8aHTML-to-Canvas\u5b9e\u73b0\u66f4\u5f3a\u5927\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 \u524d\u7aef\u5b9e\u73b0\u9875\u9762\u622a\u56fe\uff1a\u7a81\u7834 html-to-canvas \u65b9\u6848 \u5728\u524d\u7aef\u4e2d\uff0c\u5b9e\u73b0\u9875\u9762\u622a\u56fe\u662f\u4e00\u4e2a\u5e38\u89c1\u9700\u6c42\uff0c\u4f46\u4f20\u7edf\u7684 html-to-canvas \u65b9\u6848\u5e76\u4e0d\u603b\u662f\u6ee1\u8db3\u8981\u6c42\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd\u66f4\u5f3a\u5927\u7684\u65b9\u6cd5\uff0c\u8ba9\u4f60\u76f4\u63a5\u622a\u53d6\u5c4f\u5e55\u56fe\u50cf\uff0c\u5c31\u50cf\u4f7f\u7528 windows \u622a\u56fe\u5de5\u5177\u4e00\u6837\u3002 \u4f7f\u7528 screen capture api screen capture api \u5141\u8bb8\u4f60\u6355\u83b7\u5c4f\u5e55\u6d41\uff0c\u5305\u62ec\u9875\u9762\u5185\u5bb9\u548c\u5176\u4ed6\u5c4f\u5e55\u5143\u7d20\u3002\u4f7f\u7528\u6b64 api\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u66f4\u7075\u6d3b\u548c\u5f3a\u5927\u7684\u622a\u56fe\u5de5\u5177\u3002 \u6b65\u9aa4\uff1a \u9996\u5148\uff0c\u786e\u4fdd\u4f60\u7684\u6d4f\u89c8\u5668\u652f\u6301\u8be5 api\u3002\u76ee\u524d\uff0cfirefox \u4e0d\u652f\u6301\uff0c\u800c\u5176\u4ed6\u4e3b\u6d41\u6d4f\u89c8\u5668\u90fd\u6709\u5f88\u597d\u7684\u652f\u6301\u3002 \u4f7f\u7528 navigator.mediadevices.getdisplaymedia() \u83b7\u53d6\u5c4f\u5e55\u6d41\u3002 \u5c06\u5c4f\u5e55\u6d41\u5206\u914d\u7ed9\u89c6\u9891\u5143\u7d20\u3002 \u521b\u5efa\u4e00\u4e2a\u753b\u5e03\u5143\u7d20\uff0c\u5e76\u5c06\u89c6\u9891\u6d41\u7ed8\u5236\u5230\u753b\u5e03\u4e0a\u3002 \u4ece\u753b\u5e03\u83b7\u53d6\u622a\u56fe\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3a\u56fe\u50cf\u6587\u4ef6\u6216\u76f4\u63a5\u5171\u4eab\u3002 \u793a\u4f8b\uff1a navigator.mediaDevices.getDisplayMedia() .then(stream =&gt; { const video = document.createElement(&#8216;video&#8217;); video.srcObject = stream; video.play(); const canvas = document.createElement(&#8216;canvas&#8217;); const ctx = canvas.getContext(&#8216;2d&#8217;); canvas.width = video.videoWidth; canvas.height = [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53651","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53651"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53651\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}