IMouseModifiers Properties | 
The IMouseModifiers type exposes the following members.
| Name | Description | |
|---|---|---|
| BackButtonDown | 
                Indicates whether the first extended ("Back") mouse button is pressed.
              | |
| ForwardButtonDown | 
                Indicates whether the second extended ("Forward") mouse button is pressed.
              | |
| MiddleButtonDown | 
                Indicates whether the middle mouse button is pressed.
              | |
| PrimaryButtonDown | 
                Indicates whether the primary mouse button is pressed.
              | |
| SecondaryButtonDown | 
                Indicates whether the secondary mouse button is pressed.
              |