{"id":28252,"date":"2024-11-24T09:56:01","date_gmt":"2024-11-24T01:56:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/28252\/"},"modified":"2024-11-24T09:56:01","modified_gmt":"2024-11-24T01:56:01","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-screen-capture-api-%e5%ae%9e%e7%8e%b0%e5%89%8d%e7%ab%af%e9%a1%b5%e9%9d%a2%e6%88%aa%e5%9b%be%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/28252\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 Screen Capture API \u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173147220371460.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528 Screen Capture API \u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528 Screen Capture API \u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528\u524d\u7aef\u6280\u672f\u8fdb\u884c\u9875\u9762\u622a\u56fe\uff1f<\/strong><\/p>\n<p>\u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\u6709\u522b\u4e8e\u901a\u8fc7 html-to-canvas \u8f6c\u6362 HTML \u5185\u5bb9\u7684\u65b9\u6848\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd\u66f4\u52a0\u7c7b\u4f3c\u4e8e Windows \u622a\u56fe\u5de5\u5177\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1aScreen Capture API<\/strong><\/p>\n<p>Screen Capture API\uff08\u5c4f\u5e55\u6355\u83b7 API\uff09\u63d0\u4f9b\u4e86\u4e00\u79cd\u6355\u83b7\u5c4f\u5e55\u6d41\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u53ef\u4ee5\u5c06\u9875\u9762\u622a\u56fe\uff08\u5f53\u524d\u53ef\u89c1\u533a\u57df\uff09\u3002\u4f46\u9700\u8981\u6ce8\u610f\uff0c\u6b64 API \u9700\u8981\u7528\u6237\u540c\u610f\u624d\u80fd\u8fdb\u884c\u6355\u83b7\u3002<\/p>\n<p><strong>\u517c\u5bb9\u6027<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>Screen Capture API \u7684\u517c\u5bb9\u6027\u76f8\u5bf9\u8f83\u5dee\uff0c\u79fb\u52a8\u7aef\u8bbe\u5907\u57fa\u672c\u65e0\u6cd5\u4f7f\u7528\u3002\u5728 PC \u7aef\uff0cFirefox \u6d4f\u89c8\u5668\u4e5f\u4e0d\u652f\u6301\u8be5 API\u3002<\/p>\n<p>\u5177\u4f53\u517c\u5bb9\u6027\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>Chrome: 56+<\/li>\n<li>Edge: 15+<\/li>\n<li>Opera: 43+<\/li>\n<li>Safari: \u4e0d\u652f\u6301<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong><\/p>\n<pre>async function captureScreen() {\n  \/\/ \u7533\u8bf7\u7528\u6237\u6743\u9650\n  try {\n    const stream = await navigator.mediaDevices.getDisplayMedia({\n      video: true\n    });\n    const track = stream.getVideoTracks()[0];\n\n    \/\/ \u521b\u5efa\u89c6\u9891\u5143\u7d20\u663e\u793a\u6355\u83b7\u5230\u7684\u89c6\u9891\u6d41\n    const video = document.createElement('video');\n    video.srcObject = stream;\n    video.play();\n\n    \/\/ \u7b49\u5230\u5e27\u52a0\u8f7d\u5230\u89c6\u9891\u5143\u7d20\u4e2d\n    await new Promise(resolve =&gt; video.onloadeddata = resolve);\n\n    \/\/ \u6b64\u65f6\u89c6\u9891\u5143\u7d20\u4e2d\u5df2\u7ecf\u5305\u542b\u5c4f\u5e55\u56fe\u50cf\uff0c\u622a\u56fe\n    const canvas = document.createElement('canvas');\n    canvas.width = video.videoWidth;\n    canvas.height = video.videoHeight;\n    const ctx = canvas.getContext('2d');\n    ctx.drawImage(video, 0, 0);\n\n    \/\/ \u5c06Canvas\u8f6c\u6362\u4e3aDataURL\n    const dataURL = canvas.toDataURL();\n  } catch (error) {\n    \/\/ \u5904\u7406\u7528\u6237\u62d2\u7edd\u6216\u5176\u4ed6\u9519\u8bef\n    console.error(error);\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<p>\u5728\u4f7f\u7528 Screen Capture API \u65f6\uff0c\u9700\u8981\u7528\u6237\u663e\u5f0f\u6388\u4e88\u6743\u9650\uff0c\u5e76\u4e14\u4e0d\u4f1a\u6536\u5230\u7528\u6237\u5c4f\u5e55\u4e0a\u7684\u4efb\u4f55\u901a\u77e5\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 Screen Capture API \u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u524d\u7aef\u6280\u672f\u8fdb\u884c\u9875\u9762\u622a\u56fe\uff1f \u5b9e\u73b0\u524d\u7aef\u9875\u9762\u622a\u56fe\u6709\u522b\u4e8e\u901a\u8fc7 html-to-canvas \u8f6c\u6362 HTML \u5185\u5bb9\u7684\u65b9\u6848\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd\u66f4\u52a0\u7c7b\u4f3c\u4e8e Windows \u622a\u56fe\u5de5\u5177\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002 \u89e3\u51b3\u65b9\u6848\uff1aScreen Capture API Screen Capture API\uff08\u5c4f\u5e55\u6355\u83b7 API\uff09\u63d0\u4f9b\u4e86\u4e00\u79cd\u6355\u83b7\u5c4f\u5e55\u6d41\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u53ef\u4ee5\u5c06\u9875\u9762\u622a\u56fe\uff08\u5f53\u524d\u53ef\u89c1\u533a\u57df\uff09\u3002\u4f46\u9700\u8981\u6ce8\u610f\uff0c\u6b64 API \u9700\u8981\u7528\u6237\u540c\u610f\u624d\u80fd\u8fdb\u884c\u6355\u83b7\u3002 \u517c\u5bb9\u6027 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Screen Capture API \u7684\u517c\u5bb9\u6027\u76f8\u5bf9\u8f83\u5dee\uff0c\u79fb\u52a8\u7aef\u8bbe\u5907\u57fa\u672c\u65e0\u6cd5\u4f7f\u7528\u3002\u5728 PC \u7aef\uff0cFirefox \u6d4f\u89c8\u5668\u4e5f\u4e0d\u652f\u6301\u8be5 API\u3002 \u5177\u4f53\u517c\u5bb9\u6027\u5982\u4e0b\uff1a Chrome: 56+ Edge: 15+ Opera: 43+ Safari: \u4e0d\u652f\u6301 \u793a\u4f8b\u4ee3\u7801 async function captureScreen() { \/\/ \u7533\u8bf7\u7528\u6237\u6743\u9650 try { const stream = await navigator.mediaDevices.getDisplayMedia({ video: true }); const track [&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-28252","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28252","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=28252"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28252\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=28252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=28252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=28252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}