We bake cookies in your browser for a better experience. Using this site means that you consent. Read More Menu Partners Blog Sign in Download Device Creation Application Development Services Developers EN RU ZH Wiki Documentation Forum Bug Reports Code Review Qt 4.8 Qt Designer's UI File Format Creating Custom Widget Extensions $$$designer-ui-file-format.html-description The UI file format used by Qt Designer is described by the XML schema presented below, which we include for your convenience. Be aware that the format may change in future Qt releases. <?xml version="1.0" encoding="utf-8" ?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="ui" type="UI"/> <xs:complexType name="UI"> <xs:all> <xs:element name="author" type="xs:strin...