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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <lvgl.h>
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#include <tactility/device.h>
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#include <tactility/error.h>
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/**
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* @brief Creates an lv_indev_t bound to the given POINTER_TYPE device and registers a read callback
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* that polls the device through its PointerApi.
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*
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* @warning Caller must hold the LVGL lock (see lvgl_lock() in lvgl_module.h) — call this from
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* LvglModuleConfig.on_start, or after calling lvgl_lock() explicitly.
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*
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* @param[in] device a device of type POINTER_TYPE
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* @param[in] display the display this indev should be associated with, or NULL to leave it unset
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* @param[out] out_indev the created indev, valid only when ERROR_NONE is returned
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* @retval ERROR_NONE on success
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* @retval ERROR_INVALID_ARGUMENT if device or out_indev is NULL, or device is not of type POINTER_TYPE
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* @retval ERROR_OUT_OF_MEMORY if allocation failed
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*/
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error_t lvgl_pointer_add(struct Device* device, lv_display_t* display, lv_indev_t** out_indev);
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/**
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* @brief Removes an indev previously created with lvgl_pointer_add().
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* @warning Caller must hold the LVGL lock.
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*/
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void lvgl_pointer_remove(lv_indev_t* indev);
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#ifdef __cplusplus
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}
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#endif
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