1 files changed, 69 insertions, 0 deletions

diff --git a/src/xsd/ui.xsd b/src/xsd/ui.xsd
new file mode 100644
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--- /dev/null
+++ b/src/xsd/ui.xsd
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+          xmlns:xse="http://wixtoolset.org/schemas/XmlSchemaExtension"
+         xmlns:html="http://www.w3.org/1999/xhtml"
+          xmlns:wxs="http://wixtoolset.org/schemas/v4/wxs"
+    targetNamespace="http://wixtoolset.org/schemas/v4/wxs/ui"
+              xmlns="http://wixtoolset.org/schemas/v4/wxs/ui">
+  <xs:annotation>
+    <xs:documentation>
+      The source code schema for the WiX Toolset UI Extension.
+    </xs:documentation>
+  </xs:annotation>
+
+  <xs:import namespace="http://wixtoolset.org/schemas/v4/wxs" />
+
+  <xs:element name="WixUI">
+    <xs:annotation>
+      <xs:appinfo>
+        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="Fragment" />
+        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="Module" />
+        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="Package" />
+        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="PatchFamily" />
+        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="UI" />
+      </xs:appinfo>
+      <xs:documentation>
+        References a WixUI dialog set, either one that's included in WixToolset.UI.wixext or a
+        custom dialog set included in your authoring.
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:any namespace="##other" processContents="lax">
+          <xs:annotation>
+            <xs:documentation>
+              Extensibility point in the WiX XML Schema. Schema extensions can register additional
+              elements at this point in the schema.
+            </xs:documentation>
+          </xs:annotation>
+        </xs:any>
+      </xs:choice>
+      <xs:attribute name="Id" type="xs:string" use="required">
+        <xs:annotation>
+          <xs:documentation>
+            Identifier for the dialog set to reference.
+          </xs:documentation>
+        </xs:annotation>
+      </xs:attribute>
+      <xs:attribute name="InstallDirectory" type="xs:string">
+        <xs:annotation>
+          <xs:documentation>
+            An optional identifier that specifies the directory to set WIXUI_INSTALLDIR to,
+            for WixUI dialog sets that require it.
+          </xs:documentation>
+        </xs:annotation>
+      </xs:attribute>
+      <xs:anyAttribute namespace="##other" processContents="lax">
+        <xs:annotation>
+          <xs:documentation>
+            Extensibility point in the WiX XML Schema. Schema extensions can register additional
+            attributes at this point in the schema.
+          </xs:documentation>
+        </xs:annotation>
+      </xs:anyAttribute>
+    </xs:complexType>
+  </xs:element>
+</xs:schema>