from PySide6.QtWidgets import QHBoxLayout from qfluentwidgets import FluentTitleBar from qfluentwidgets.window.fluent_window import FluentWindowBase class MyWindow(FluentWindowBase): def __init__(self, parent=None): super().__init__(parent) self.setTitleBar(FluentTitleBar(self)) self.widgetLayout = QHBoxLayout(self) self.widgetLayout.setContentsMargins(0, 48, 0, 0) self.hBoxLayout.addLayout(self.widgetLayout) self.titleBar.raise_() self.showMaximized()