Then we can write an XML file for the Google toolbar. The format is as follows:
<? XML version = "1.0" encoding = "UTF-8"?>
<Custombuttons xmlns = "http://toolbar.google.com/custombuttons/">
<Button>
<Site> click here to enter the URL </site>
<Title> I am the title of the button </title>
<Description> I am the description of the button </description>
<Feed refresh-interval = "1800"> RSS address </feed>
<Icon mode = "base64" type = "image/X-icon">
ICO file content after base64
</Icon>
</Button>
</Custombuttons> for specific examples, see here. The title and description are self-evident, the title and description, and the most important thing is the feed tag. The value of the feed is any RSS link. For this article, it is the RSS address of the message. The refresh-interval attribute is the refresh interval, in seconds.
Then, you can add the buttons in XML format to the Google Toolbar based on the links provided by the Google toolbar. Format:
Http://toolbar.google.com/buttons/add? Url = <XML File URL>
For more information, see the Chinese API documentation of the Google toolbar.