ALT |
Indicates that the Alt key was depressed when this message was generated. |
CONTROL |
Indicates that the CTRL key was depressed when this message was generated. |
DOWN |
Indicates that either a key or mouse button was depressed. |
LBUTTON |
Indicates that the left mouse button was depressed when this message was generated. |
MBUTTON |
Indicates that the third mouse button was depressed when this message was generated. |
RBUTTON |
Indicates that the second (right) mouse button was depressed when this message was generated. |
SHIFT |
Indicates that the Shift key was depressed when this message was generated. |
UP |
Indicates that either a key or mouse button was released. |
UPDOWN |
Indicates that either a key or mouse button was depressed and released. |