My project is building a dictionary and I have done everything for it. Just I want to add a feature to my dictionary which is able the user to leave the cursor on the word which he/she want to find the meaning. after that the meaning appear in a box. My problem is I don't know how to write the code to detect the Mouse Idle time for two seconds and perform a double-click to highlight the text. the rest I can do. I just want to know how can I recognize the mouse IDLE time and assign a double click to it. Can you guide me in this case?