<?xml version="1.0" encoding="UTF-8"?>
<Window size="800,600" caption="0,0,0,35">
  <VBox bkcolor="bk_wnd_darkcolor">
    <HBox width="stretch" height="35" bkcolor="bk_wnd_lightcolor">
      <Control />
      <Button class="btn_wnd_min" name="minbtn" margin="4,6,0,0"/>
      <Box width="21" margin="4,6,0,0">
        <Button class="btn_wnd_max" name="maxbtn"/>
        <Button class="btn_wnd_restore" name="restorebtn" visible="false"/>
      </Box>
      <Button class="btn_wnd_close" name="closebtn" margin="4,6,8,0"/>
    </HBox>
    <Box>
      <VBox margin="0,0,0,0" valign="center" halign="center" width="auto" height="auto">
        <Label name="tooltip" text="一个简单窗口，带有标题栏和常规按钮。"/>
      </VBox>
    </Box>
  </VBox>
</Window>