<html><head><metahttp-equiv="X-UA-Compatible"content="IE=edge"/><linkrel="shortcut icon"href="../icons/favicon.ico"/><linkrel="stylesheet"type="text/css"href="../styles/branding.css"/><linkrel="stylesheet"type="text/css"href="../styles/branding-en-US.css"/><scripttype="text/javascript"src="../scripts/branding.js"></script><metahttp-equiv="Content-Type"content="text/html; charset=UTF-8"/><title>OptionsConfigurationFile.LockAspectRatio Property </title><metaname="Language"content="en-us"/><metaname="System.Keywords"content="LockAspectRatio property"/><metaname="System.Keywords"content="OptionsConfigurationFile.LockAspectRatio property"/><metaname="Microsoft.Help.F1"content="butterflow_ui.OptionsConfigurationFile.LockAspectRatio"/><metaname="Microsoft.Help.F1"content="butterflow_ui.OptionsConfigurationFile.get_LockAspectRatio"/><metaname="Microsoft.Help.F1"content="butterflow_ui.OptionsConfigurationFile.set_LockAspectRatio"/><metaname="Microsoft.Help.Id"content="P:butterflow_ui.OptionsConfigurationFile.LockAspectRatio"/><metaname="Description"content="Gets or sets a value indicating whether to lock aspect ratio of the video."/><metaname="Microsoft.Help.ContentType"content="Reference"/><metaname="BrandingAware"content="true"/><metaname="container"content="butterflow_ui"/><metaname="file"content="5ac6a05a-8f39-6ec7-7ff9-42e0a55dbc6a"/><metaname="guid"content="5ac6a05a-8f39-6ec7-7ff9-42e0a55dbc6a"/><linkrel="stylesheet"type="text/css"href="../styles/branding-Website.css"/><scripttype="text/javascript"src="../scripts/jquery-3.3.1.min.js"></script><scripttype="text/javascript"src="../scripts/branding-Website.js"></script><scripttype="text/javascript"src="../scripts/clipboard.min.js"></script></head><bodyonload="OnLoad('cs')"><inputtype="hidden"id="userDataCache"class="userDataStyle"/><divclass="pageHeader"id="PageHeader">A Sandcastle Documented Class Library<formid="SearchForm"method="get"action="#"onsubmit="javascript:TransferToSearchPage(); return false;"><inputid="SearchTextBox"type="text"maxlength="200"/><buttonid="SearchButton"type="submit"></button></form></div><divclass="pageBody"><divclass="leftNav"id="leftNav"><divid="tocNav"><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/e151fc72-f3cc-1740-7ea1-73c21ce1fa93.htm"title="A Sandcastle Documented Class Library"tocid="roottoc">A Sandcastle Documented Class Library</a></div><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/e151fc72-f3cc-1740-7ea1-73c21ce1fa93.htm"title="butterflow_ui"tocid="e151fc72-f3cc-1740-7ea1-73c21ce1fa93">butterflow_ui</a></div><divclass="toclevel0"data-toclevel="0"><aclass="tocCollapsed"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/b6d681cc-0a33-4090-fc85-261516d0a18b.htm"title="OptionsConfigurationFile Class"tocid="b6d681cc-0a33-4090-fc85-261516d0a18b">OptionsConfigurationFile Class</a></div><divclass="toclevel1"data-toclevel="1"data-childrenloaded="true"><aclass="tocExpanded"onclick="javascript: Toggle(this);"href="#!"/><adata-tochassubtree="true"href="../html/70316688-ddc5-44a2-cedc-9b5b5599775f.htm"title="OptionsConfigurationFile Properties"tocid="70316688-ddc5-44a2-cedc-9b5b5599775f">OptionsConfigurationFile Properties</a></div><divclass="toclevel2"data-toclevel="2"><adata-tochassubtree="false"href="../html/775384d8-abb5-3b65-3aa7-2e6dd9386900.htm"title="FastPyramid Property "tocid="775384d8-abb5-3b65-3aa7-2e6dd9386900">FastPyramid Property </a></div><divclass="toclevel2"data-toclevel="2"><adata-tochassubtree="false"href="../html/18dd4070-3087-439a-2de3-2c8f67e149ee.htm"title="FlowFilterType Property "tocid="18dd4070-3087-439a-2de3-2c8f67e149ee">FlowFilterType Property </a></div><divclass="toclevel2"data-toclevel="2"><adata-tochassubtree="false"href="../html/731bf