wl_touch_listener

touchscreen input device

The wl_touch interface represents a touchscreen associated with a seat.

Touch interactions can consist of one or more contacts. For each contact, a series of events is generated, starting with a down event, followed by zero or more motion events, and ending with an up event. Events relating to the same contact point can be identified by the ID of the sequence.

extern (C)

struct wl_touch_listener {

void function(void* data, wl_touch* wl_touch, uint serial, uint time, wl_surface* surface, int id, wl_fixed_t x, wl_fixed_t y) down;

void function(void* data, wl_touch* wl_touch, uint serial, uint time, int id) up;

void function(void* data, wl_touch* wl_touch, uint time, int id, wl_fixed_t x, wl_fixed_t y) motion;

void function(void* data, wl_touch* wl_touch) frame;

void function(void* data, wl_touch* wl_touch) cancel;

}

Members

Variables

cancel void function(void* data, wl_touch* wl_touch) cancel;: touch session cancelled
down void function(void* data, wl_touch* wl_touch, uint serial, uint time, wl_surface* surface, int id, wl_fixed_t x, wl_fixed_t y) down;: touch down event and beginning of a touch sequence
frame void function(void* data, wl_touch* wl_touch) frame;: end of touch frame event
motion void function(void* data, wl_touch* wl_touch, uint time, int id, wl_fixed_t x, wl_fixed_t y) motion;: update of touch point coordinates
up void function(void* data, wl_touch* wl_touch, uint serial, uint time, int id) up;: end of a touch event sequence

wl_touch_listener

Members

Variables

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