效果如下：

xml代码：

<?xml version="1.0" encoding="UTF-8"?>
<Window size="400,400" 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 height="150" bkcolor="bk_wnd_lightcolor">
        <Control bkimage="circle.png" width="100" height="100"  valign="center" halign="center" borderround="100,100" />
        <Label text="QQ：728297725" halign="center" valign="center" />
    </Box>
  </VBox>
</Window>