lv_disp.h File Reference

#include "../lv_hal/lv_hal.h"
#include "lv_obj.h"

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Macros
#define	LV_HOR_RES   lv_disp_get_hor_res(lv_disp_get_default())
#define	LV_VER_RES   lv_disp_get_ver_res(lv_disp_get_default())

Functions
lv_obj_t *	lv_disp_get_scr_act (lv_disp_t *disp)
void	lv_disp_load_scr (lv_obj_t *scr)
lv_obj_t *	lv_disp_get_layer_top (lv_disp_t *disp)
lv_obj_t *	lv_disp_get_layer_sys (lv_disp_t *disp)
void	lv_disp_assign_screen (lv_disp_t *disp, lv_obj_t *scr)
lv_task_t *	lv_disp_get_refr_task (lv_disp_t *disp)
uint32_t	lv_disp_get_inactive_time (const lv_disp_t *disp)
void	lv_disp_trig_activity (lv_disp_t *disp)

Macro Definition Documentation

LV_HOR_RES

#define LV_HOR_RES   lv_disp_get_hor_res(lv_disp_get_default())

The horizontal resolution of the currently active display.

LV_VER_RES

#define LV_VER_RES   lv_disp_get_ver_res(lv_disp_get_default())

The vertical resolution of the currently active display.

Function Documentation

lv_disp_get_scr_act()

lv_obj_t* lv_disp_get_scr_act

(

lv_disp_t *

disp

)

Return with a pointer to the active screen

Parameters

disp	pointer to display which active screen should be get. (NULL to use the default screen)

Returns

pointer to the active screen object (loaded by 'lv_scr_load()')

lv_disp_load_scr()

void lv_disp_load_scr

(

lv_obj_t *

scr

)

Make a screen active

Parameters

scr	pointer to a screen

lv_disp_get_layer_top()

lv_obj_t* lv_disp_get_layer_top

(

lv_disp_t *

disp

)

Return with the top layer. (Same on every screen and it is above the normal screen layer)

Parameters

disp	pointer to display which top layer should be get. (NULL to use the default screen)

Returns

pointer to the top layer object (transparent screen sized lv_obj)

lv_disp_get_layer_sys()

lv_obj_t* lv_disp_get_layer_sys

(

lv_disp_t *

disp

)

Return with the sys. layer. (Same on every screen and it is above the normal screen and the top layer)

Parameters

disp	pointer to display which sys. layer should be get. (NULL to use the default screen)

Returns

pointer to the sys layer object (transparent screen sized lv_obj)

lv_disp_assign_screen()

void lv_disp_assign_screen	(	lv_disp_t *	disp,
		lv_obj_t *	scr
	)

Assign a screen to a display.

Parameters

disp	pointer to a display where to assign the screen
scr	pointer to a screen object to assign

lv_disp_get_refr_task()

lv_task_t* lv_disp_get_refr_task

(

lv_disp_t *

disp

)

Get a pointer to the screen refresher task to modify its parameters with lv_task_... functions.

Parameters

disp	pointer to a display

Returns

pointer to the display refresher task. (NULL on error)

lv_disp_get_inactive_time()

uint32_t lv_disp_get_inactive_time

(

const lv_disp_t *

disp

)

Get elapsed time since last user activity on a display (e.g. click)

Parameters

disp	pointer to an display (NULL to get the overall smallest inactivity)

Returns

elapsed ticks (milliseconds) since the last activity

lv_disp_trig_activity()

void lv_disp_trig_activity

(

lv_disp_t *

disp

)

Manually trigger an activity on a display

Parameters

disp	pointer to an display (NULL to use the default display)