Hyperlink in Tooltip

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

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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.

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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.