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Mouse events have specific behavior in the context of RadRichTextBox as they are used to determine the state of the selection in the control. Changing the behavior might cause issues and subscribing to the events is not always the recommended way to achieve certain behavior.
Could you please share more details about your scenario? What kind of modification are you going to do? This would be the fastest way to try to provide a solution for your desired scenario.
I am looking forward to your reply.
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