Use of the Mouse
See also Mouse Scroll Wheel
How to use the Right Button:
How to use the Left Button:
1. Start a drawing operation by clicking the left button on a drawing tool.
2. Click the left button on the drawing where you want the drawing element to start.
3. Move the cursor to where you want the drawing element to end and click the left button.
An alternative:
1. Start a drawing operation by clicking the left button on a drawing tool.
2. Click and hold the left button on the drawing where you want the drawing element to start.
3. Drag the cursor to where you want the where you want the drawing element to end.
4. Release the left mouse button.
(drawing tools vary, but most fit loosely into those two procedures)
Hint:
You can draw with the mouse and the keyboard together to get the best of both methods.
For instance: use the mouse to move the cursor most of the way, and an arrow key for the last few pixels.