lv_refr_private.h

API reference for lv_refr_private.h

Summary

Functions

Set the display which is being refreshed

void lv_refr_set_disp_refreshing(lv_display_t *disp)

Name	Type	Description
`disp`	`lv_display_t *`	the display being refreshed

Get the display which is being refreshed

lv_display_t * lv_refr_get_disp_refreshing(void)

Returns: lv_display_t * — the display being refreshed

Search the most top object which fully covers an area

lv_obj_t * lv_refr_get_top_obj(const lv_area_t *area_p, lv_obj_t *obj)

Name	Type	Description
`area_p`	`const lv_area_t *`	pointer to an area
`obj`	`lv_obj_t *`	the first object to start the searching (typically a screen)

Initialize the screen refresh subsystem

void lv_refr_init(void)

Deinitialize the screen refresh subsystem

void lv_refr_deinit(void)

Invalidate an area on display to redraw it

lv_result_t lv_inv_area(lv_display_t *disp, const lv_area_t *area_p)

Name	Type	Description
`disp`	`lv_display_t *`	pointer to display where the area should be invalidated (NULL can be used if there is only one display)
`area_p`	`const lv_area_t *`	pointer to area which should be invalidated (NULL: delete the invalidated areas)

Returns: lv_result_t — LV_RESULT_OK: the area is invalidated; LV_RESULT_INVALID: the area wasn't invalidated.

Render an object to a layer

void lv_obj_refr(lv_layer_t *layer, lv_obj_t *obj)

Name	Type	Description
`layer`	`lv_layer_t *`	target drawing layer
`obj`	`lv_obj_t *`	object to render