It displays a single line of text and lets the user edit it. Normally it is drawn with an inset box and a white background. Mouse button 1 Moves the cursor to this point. Drag selects characters. Double click selects words.
Triple click selects all text.
When you select text it is automatically copied to the clipboard. Mouse button 2 Insert the clipboard at the point clicked. You can also select a region and replace it with the clipboard by selecting the region with mouse button 2. Mouse button 3 Currently acts like button 1. Backspace Deletes one character to the left, or deletes the selected region.