These constants should be used in InputEvent and only movements bigger than MOUSEMOVE_DELTA_TABLET or MOUSEMOVE_DELTA_MOUSE should be processed.
Here is an example from the material preview:
Macros | |
#define | MOUSEMOVE_DELTA_TABLET |
#define | MOUSEMOVE_DELTA_MOUSE |
#define MOUSEMOVE_DELTA_TABLET |
Tablet movement threshold.
#define MOUSEMOVE_DELTA_MOUSE |
Mouse movement threshold.