Hyperlink in Tooltip

How to create hyperlink in 开发者_StackOverflow中文版tooltip like in below image

You could create a custom ToolTip that inherits from System.Windows.Forms.ToolTip.

There is an example on CodeProject that adds an image to the ToolTip, you should be able to do something similar to add hyperlinks.

It's not a true tooltip - That's actually a floating window. You would need to create a window with a hidden border (titlebar etc) and set to "stay on top", then show it when the mouse moves in/out.