input::ffi

Function libinput_event_touch_get_y_transformed

pub unsafe extern "C" fn libinput_event_touch_get_y_transformed(
    event: *mut libinput_event_touch,
    height: u32,
) -> f64
Expand description

@ingroup event_touch

Return the current absolute y coordinate of the touch event, transformed to screen coordinates.

For events not of type @ref LIBINPUT_EVENT_TOUCH_DOWN, @ref LIBINPUT_EVENT_TOUCH_MOTION, this function returns 0.

@note It is an application bug to call this function for events of type other than @ref LIBINPUT_EVENT_TOUCH_DOWN or @ref LIBINPUT_EVENT_TOUCH_MOTION.

@param event The libinput touch event @param height The current output screen height @return The current absolute y coordinate transformed to a screen coordinate