Get mouse delta between frames.
Note
This function has been auto-generated from the following Raylib function definition:
Vector2 GetMouseDelta(void);See also
Other mouse functions: 
get_mouse_position(),
get_mouse_wheel_move(),
get_mouse_x(),
get_mouse_y(),
is_mouse_button_down(),
is_mouse_button_pressed(),
is_mouse_button_released(),
is_mouse_button_up(),
set_mouse_cursor(),
set_mouse_offset(),
set_mouse_position(),
set_mouse_scale()
