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43 * Use the buffer(s) to render the screen is smaller parts.
44 …* This way the buffers can be smaller then the display to save RAM. At least 1/10 screen size buff…
49 …* The buffer(s) has to be screen sized and LVGL will render into the correct location of the buffe…
92 * @return pointer to a display object or `NULL` on error
98 * @param disp pointer to display
104 * @param disp pointer to a display
110 * @return pointer to the default display
116 * @param disp pointer to the current display. NULL to initialize.
129 * @param disp pointer to a display
136 …* It's not mandatory to use the whole display for LVGL, however in some cases physical resolution …
137 * For example the touchpad still sees whole resolution and the values needs to be converted
138 * to the active LVGL display area.
139 * @param disp pointer to a display
140 …* @param hor_res the new physical horizontal resolution, or -1 to assume it's the same as the no…
141 …* @param ver_res the new physical vertical resolution, or -1 to assume it's the same as the norm…
148 * @param disp pointer to a display
156 * @param disp pointer to a display (NULL to use the default display)
164 * @param disp pointer to a display
171 * @param disp pointer to a display (NULL to use the default display)
178 * @param disp pointer to a display (NULL to use the default display)
185 * @param disp pointer to a display (NULL to use the default display)
192 * @param disp pointer to a display (NULL to use the default display)
199 * @param disp pointer to a display (NULL to use the default display)
206 * @param disp pointer to a display (NULL to use the default display)
213 * @param disp pointer to a display (NULL to use the default display)
220 * @param disp pointer to a display (NULL to use the default display)
230 …* Set the buffers for a display, similarly to `lv_display_set_draw_buffers`, but accept the raw bu…
233 * @param disp pointer to a display
243 * Set the frame buffers for a display, similarly to `lv_display_set_buffers`, but allow
245 * This allows the frame buffers to have a stride alignment different from the rest of
247 * @param disp pointer to a display
261 * @param disp pointer to a display
269 * @param disp pointer to a display
275 * Set the flush callback which will be called to copy the rendered image to the display.
276 * @param disp pointer to a display
277 …_map` contains the rendered image as raw pixel map and it should be copied to `area` on the displa…
282 * Set a callback to be used while LVGL is waiting flushing to be finished.
283 * It can do any complex logic to wait, including semaphores, mutexes, polling flags, etc.
285 * @param disp pointer to a display
286 * @param wait_cb a callback to call while LVGL is waiting for flush ready.
287 * If NULL `lv_display_flush_ready()` can be used to signal that flushing is ready.
293 * @param disp pointer to a display
299 *@note To change the endianness of the rendered image in case of RGB565 format
306 * @param disp pointer to a display
313 * @param disp pointer to a display
320 * @param disp pointer to a display
327 * @param disp pointer to a display
334 * @param disp pointer to a display (NULL to use the default display)
343 * @param disp pointer to display whose `flush_cb` was called
349 …* Can be called from `flush_cb` to execute some special display refreshing if needed when all area…
350 * @param disp pointer to display
351 * @return true: it's the last area to flush;
365 * Return a pointer to the active screen on a display
366 * @param disp pointer to display which active screen should be get.
367 * (NULL to use the default screen)
368 * @return pointer to the active screen object (loaded by 'lv_screen_load()')
373 * Return with a pointer to the previous screen. Only used during screen transitions.
374 * @param disp pointer to display which previous screen should be get.
375 * (NULL to use the default screen)
376 * @return pointer to the previous screen object or NULL if not used now
382 …* @param disp pointer to display which top layer should be get. (NULL to use the default scre…
383 * @return pointer to the top layer object
389 …* @param disp pointer to display which sys. layer should be retrieved. (NULL to use the defau…
390 * @return pointer to the sys layer object
397 * @param disp pointer to display (NULL to use the default screen)
398 * @return pointer to the bottom layer object
404 * @param scr pointer to a screen
410 * @param scr pointer to the new screen to load
421 * @return pointer to the active screen
427 * @return pointer to the top layer
433 * @return pointer to the sys layer
439 * @return pointer to the bottom layer
448 * Add an event handler to the display
449 * @param disp pointer to a display
451 * @param filter event code to react or `LV_EVENT_ALL`
457 * Get the number of event attached to a display
458 * @param disp pointer to a display
465 * @param disp pointer to a display
473 * @param disp pointer to a display
474 * @param index the index of the event to remove
481 * @param disp pointer to a display
482 * @param event_cb the event_cb of the event to remove
489 * Send an event to a display
490 * @param disp pointer to a display
498 * Get the area to be invalidated. Can be used in `LV_EVENT_INVALIDATE_AREA`
499 * @param e pointer to an event
500 * @return the area to invalidated (can be modified as required)
506 * @param disp pointer to a display
507 * @param th pointer to a theme
513 * @param disp pointer to a display
520 * @param disp pointer to a display (NULL to get the overall smallest inactivity)
527 * @param disp pointer to a display (NULL to use the default display)
533 * @param disp pointer to a display (NULL to use the default display)
540 * @param disp pointer to a display (NULL to use the default display)
546 * Get a pointer to the screen refresher timer to
548 * @param disp pointer to a display
549 * @return pointer to the display refresher timer. (NULL on error)
555 * @param disp pointer to a display
566 * Rotate an area in-place according to the display's rotation
567 * @param disp pointer to a display
568 * @param area pointer to an area to rotate
574 * @param disp pointer to a display
581 * to get the number of bytes used in the current render buffer.
582 * @param disp pointer to a display
595 * To improve backward compatibility
615 * Same as Android's DIP. (Different name is chosen to avoid mistype between LV_DPI and LV_DIP)
627 * display had 160 DPI. This allows you to specify 1/160-th fractions of an inch to
630 * regardless to the DPI of the display.
631 * @param n number of 1/160-th-inch units to compute with
632 * @return number of pixels to use to make that distance
638 * display had 160 DPI. This allows you to specify 1/160-th fractions of an inch to
641 * regardless to the DPI of the display.
642 * @param disp pointer to display whose dpi should be considered
643 * @param n number of 1/160-th-inch units to compute with
644 * @return number of pixels to use to make that distance