diff --git a/src/widgets/lv_textarea.c b/src/widgets/lv_textarea.c
index b8b17bac7..41f69cce9 100644
--- a/src/widgets/lv_textarea.c
+++ b/src/widgets/lv_textarea.c
@@ -81,11 +81,6 @@ static const char * ta_insert_replace;
  *   GLOBAL FUNCTIONS
  **********************/
 
-/**
- * Create a text area objects
- * @param par pointer to an object, it will be the parent of the new text area
- * @return pointer to the created text area
- */
 lv_obj_t * lv_textarea_create(lv_obj_t * parent)
 {
     LV_LOG_INFO("begin")
@@ -96,12 +91,6 @@ lv_obj_t * lv_textarea_create(lv_obj_t * parent)
  * Add/remove functions
  *=====================*/
 
-/**
- * Insert a character to the current cursor position.
- * To add a wide char, e.g. 'Á' use `_lv_txt_encoded_conv_wc('Á')`
- * @param ta pointer to a text area object
- * @param c a character (e.g. 'a')
- */
 void lv_textarea_add_char(lv_obj_t * obj, uint32_t c)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -180,11 +169,6 @@ void lv_textarea_add_char(lv_obj_t * obj, uint32_t c)
     lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL);
 }
 
-/**
- * Insert a text to the current cursor position
- * @param ta pointer to a text area object
- * @param txt a '\0' terminated string to insert
- */
 void lv_textarea_add_text(lv_obj_t * obj, const char * txt)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -251,10 +235,6 @@ void lv_textarea_add_text(lv_obj_t * obj, const char * txt)
     lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL);
 }
 
-/**
- * Delete a the left character from the current cursor position
- * @param ta pointer to a text area object
- */
 void lv_textarea_del_char(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -299,10 +279,6 @@ void lv_textarea_del_char(lv_obj_t * obj)
 
 }
 
-/**
- * Delete the right character from the current cursor position
- * @param ta pointer to a text area object
- */
 void lv_textarea_del_char_forward(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -316,11 +292,6 @@ void lv_textarea_del_char_forward(lv_obj_t * obj)
  * Setter functions
  *====================*/
 
-/**
- * Set the text of a text area
- * @param ta pointer to a text area
- * @param txt pointer to the text
- */
 void lv_textarea_set_text(lv_obj_t * obj, const char * txt)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -385,11 +356,6 @@ void lv_textarea_set_text(lv_obj_t * obj, const char * txt)
     lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL);
 }
 
-/**
- * Set the placeholder_txt text of a text area
- * @param ta pointer to a text area
- * @param txt pointer to the text
- */
 void lv_textarea_set_placeholder_text(lv_obj_t * obj, const char * txt)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -426,13 +392,6 @@ void lv_textarea_set_placeholder_text(lv_obj_t * obj, const char * txt)
     lv_obj_invalidate(obj);
 }
 
-/**
- * Set the cursor position
- * @param obj pointer to a text area object
- * @param pos the new cursor position in character index
- *             < 0 : index from the end of the text
- *             LV_TEXTAREA_CURSOR_LAST: go after the last character
- */
 void lv_textarea_set_cursor_pos(lv_obj_t * obj, int32_t pos)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -475,11 +434,6 @@ void lv_textarea_set_cursor_pos(lv_obj_t * obj, int32_t pos)
     refr_cursor_area(obj);
 }
 
-/**
- * Enable/Disable the positioning of the cursor by clicking the text on the text area.
- * @param ta pointer to a text area object
- * @param en true: enable click positions; false: disable
- */
 void lv_textarea_set_cursor_click_pos(lv_obj_t * obj, bool en)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -488,11 +442,6 @@ void lv_textarea_set_cursor_click_pos(lv_obj_t * obj, bool en)
     ta->cursor.click_pos = en ? 1 : 0;
 }
 
-/**
- * Enable/Disable password mode
- * @param ta pointer to a text area object
- * @param en true: enable, false: disable
- */
 void lv_textarea_set_password_mode(lv_obj_t * obj, bool en)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -526,11 +475,6 @@ void lv_textarea_set_password_mode(lv_obj_t * obj, bool en)
     refr_cursor_area(obj);
 }
 
-/**
- * Configure the text area to one line or back to normal
- * @param ta pointer to a Text area object
- * @param en true: one line, false: normal
- */
 void lv_textarea_set_one_line(lv_obj_t * obj, bool en)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -556,11 +500,6 @@ void lv_textarea_set_one_line(lv_obj_t * obj, bool en)
     }
 }
 
-/**
- * Set a list of characters. Only these characters will be accepted by the text area
- * @param ta pointer to  Text Area
- * @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
- */
 void lv_textarea_set_accepted_chars(lv_obj_t * obj, const char * list)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -570,11 +509,6 @@ void lv_textarea_set_accepted_chars(lv_obj_t * obj, const char * list)
     ta->accepted_chars = list;
 }
 
-/**
- * Set max length of a Text Area.
- * @param ta pointer to  Text Area
- * @param num the maximal number of characters can be added (`lv_textarea_set_text` ignores it)
- */
 void lv_textarea_set_max_length(lv_obj_t * obj, uint32_t num)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -584,14 +518,6 @@ void lv_textarea_set_max_length(lv_obj_t * obj, uint32_t num)
     ta->max_length = num;
 }
 
-/**
- * In `LV_EVENT_INSERT` the text which planned to be inserted can be replaced by an other text.
- * It can be used to add automatic formatting to the text area.
- * @param ta pointer to a text area.
- * @param txt pointer to a new string to insert. If `""` no text will be added.
- *            The variable must be live after the `event_cb` exists. (Should be `global` or
- * `static`)
- */
 void lv_textarea_set_insert_replace(lv_obj_t * obj, const char * txt)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -600,11 +526,6 @@ void lv_textarea_set_insert_replace(lv_obj_t * obj, const char * txt)
     ta_insert_replace = txt;
 }
 
-/**
- * Enable/disable selection mode.
- * @param ta pointer to a text area object
- * @param en true or false to enable/disable selection mode
- */
 void lv_textarea_set_text_sel(lv_obj_t * obj, bool en)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -621,11 +542,6 @@ void lv_textarea_set_text_sel(lv_obj_t * obj, bool en)
 #endif
 }
 
-/**
- * Set how long show the password before changing it to '*'
- * @param ta pointer to Text area
- * @param time show time in milliseconds. 0: hide immediately.
- */
 void lv_textarea_set_password_show_time(lv_obj_t * obj, uint16_t time)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -634,13 +550,6 @@ void lv_textarea_set_password_show_time(lv_obj_t * obj, uint16_t time)
     ta->pwd_show_time = time;
 }
 
-/**
- * Set the label's alignment.
- * It sets where the label is aligned (in one line mode it can be smaller than the text area)
- * and how the lines of the area align in case of multiline text area
- * @param obj       pointer to a textarea obejct
- * @param align     the align mode from ::lv_text_align_t
- */
 void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align)
 {
     lv_obj_set_style_text_align(obj, LV_PART_MAIN, LV_STATE_DEFAULT, align);
@@ -663,11 +572,6 @@ void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align)
  * Getter functions
  *====================*/
 
-/**
- * Get the text of a text area. In password mode it gives the real text (not '*'s).
- * @param ta pointer to a text area object
- * @return pointer to the text
- */
 const char * lv_textarea_get_text(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -685,11 +589,6 @@ const char * lv_textarea_get_text(const lv_obj_t * obj)
     return txt;
 }
 
-/**
- * Get the placeholder_txt text of a text area
- * @param ta pointer to a text area object
- * @return pointer to the text
- */
 const char * lv_textarea_get_placeholder_text(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -699,11 +598,6 @@ const char * lv_textarea_get_placeholder_text(lv_obj_t * obj)
     else return "";
 }
 
-/**
- * Get the label of a text area
- * @param ta pointer to a text area object
- * @return pointer to the label object
- */
 lv_obj_t * lv_textarea_get_label(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -712,11 +606,6 @@ lv_obj_t * lv_textarea_get_label(const lv_obj_t * obj)
     return ta->label;
 }
 
-/**
- * Get the current cursor position in character index
- * @param ta pointer to a text area object
- * @return the cursor position
- */
 uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -725,11 +614,6 @@ uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * obj)
     return ta->cursor.pos;
 }
 
-/**
- * Get whether the cursor click positioning is enabled or not.
- * @param ta pointer to a text area object
- * @return true: enable click positions; false: disable
- */
 bool lv_textarea_get_cursor_click_pos(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -738,11 +622,6 @@ bool lv_textarea_get_cursor_click_pos(lv_obj_t * obj)
     return ta->cursor.click_pos ? true : false;
 }
 
-/**
- * Get the password mode attribute
- * @param ta pointer to a text area object
- * @return true: password mode is enabled, false: disabled
- */
 bool lv_textarea_get_password_mode(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -751,11 +630,6 @@ bool lv_textarea_get_password_mode(const lv_obj_t * obj)
     return ta->pwd_mode == 0 ? false : true;
 }
 
-/**
- * Get the one line configuration attribute
- * @param ta pointer to a text area object
- * @return true: one line configuration is enabled, false: disabled
- */
 bool lv_textarea_get_one_line(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -764,11 +638,6 @@ bool lv_textarea_get_one_line(const lv_obj_t * obj)
     return ta->one_line == 0 ? false : true;
 }
 
-/**
- * Get a list of accepted characters.
- * @param ta pointer to  Text Area
- * @return list of accented characters.
- */
 const char * lv_textarea_get_accepted_chars(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -778,11 +647,6 @@ const char * lv_textarea_get_accepted_chars(lv_obj_t * obj)
     return ta->accepted_chars;
 }
 
-/**
- * Set max length of a Text Area.
- * @param ta pointer to  Text Area
- * @return the maximal number of characters to be add
- */
 uint32_t lv_textarea_get_max_length(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -791,11 +655,6 @@ uint32_t lv_textarea_get_max_length(lv_obj_t * obj)
     return ta->max_length;
 }
 
-/**
- * Find whether text is selected or not.
- * @param ta Text area object
- * @return whether text is selected or not
- */
 bool lv_textarea_text_is_selected(const lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -816,11 +675,6 @@ bool lv_textarea_text_is_selected(const lv_obj_t * obj)
 #endif
 }
 
-/**
- * Find whether selection mode is enabled.
- * @param ta pointer to a text area object
- * @return true: selection mode is enabled, false: disabled
- */
 bool lv_textarea_get_text_sel_en(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -834,11 +688,6 @@ bool lv_textarea_get_text_sel_en(lv_obj_t * obj)
 #endif
 }
 
-/**
- * Set how long show the password before changing it to '*'
- * @param ta pointer to Text area
- * @return show time in milliseconds. 0: hide immediately.
- */
 uint16_t lv_textarea_get_password_show_time(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -852,10 +701,6 @@ uint16_t lv_textarea_get_password_show_time(lv_obj_t * obj)
  * Other functions
  *====================*/
 
-/**
- * Clear the selection on the text area.
- * @param ta Text area object
- */
 void lv_textarea_clear_selection(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -873,10 +718,6 @@ void lv_textarea_clear_selection(lv_obj_t * obj)
 #endif
 }
 
-/**
- * Move the cursor one character right
- * @param ta pointer to a text area object
- */
 void lv_textarea_cursor_right(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -886,10 +727,6 @@ void lv_textarea_cursor_right(lv_obj_t * obj)
     lv_textarea_set_cursor_pos(obj, cp);
 }
 
-/**
- * Move the cursor one character left
- * @param ta pointer to a text area object
- */
 void lv_textarea_cursor_left(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -901,10 +738,6 @@ void lv_textarea_cursor_left(lv_obj_t * obj)
     }
 }
 
-/**
- * Move the cursor one line down
- * @param ta pointer to a text area object
- */
 void lv_textarea_cursor_down(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -934,10 +767,6 @@ void lv_textarea_cursor_down(lv_obj_t * obj)
     }
 }
 
-/**
- * Move the cursor one line up
- * @param ta pointer to a text area object
- */
 void lv_textarea_cursor_up(lv_obj_t * obj)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
diff --git a/src/widgets/lv_textarea.h b/src/widgets/lv_textarea.h
index b28707780..ee270dc94 100644
--- a/src/widgets/lv_textarea.h
+++ b/src/widgets/lv_textarea.h
@@ -89,29 +89,29 @@ lv_obj_t * lv_textarea_create(lv_obj_t * parent);
 /**
  * Insert a character to the current cursor position.
  * To add a wide char, e.g. 'Á' use `_lv_txt_encoded_conv_wc('Á')`
- * @param ta pointer to a text area object
- * @param c a character (e.g. 'a')
+ * @param obj       pointer to a text area object
+ * @param c         a character (e.g. 'a')
  */
-void lv_textarea_add_char(lv_obj_t * ta, uint32_t c);
+void lv_textarea_add_char(lv_obj_t * obj, uint32_t c);
 
 /**
  * Insert a text to the current cursor position
- * @param ta pointer to a text area object
- * @param txt a '\0' terminated string to insert
+ * @param obj       pointer to a text area object
+ * @param txt       a '\0' terminated string to insert
  */
-void lv_textarea_add_text(lv_obj_t * ta, const char * txt);
+void lv_textarea_add_text(lv_obj_t * obj, const char * txt);
 
 /**
  * Delete a the left character from the current cursor position
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_del_char(lv_obj_t * ta);
+void lv_textarea_del_char(lv_obj_t * obj);
 
 /**
  * Delete the right character from the current cursor position
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_del_char_forward(lv_obj_t * ta);
+void lv_textarea_del_char_forward(lv_obj_t * obj);
 
 /*=====================
  * Setter functions
@@ -119,91 +119,90 @@ void lv_textarea_del_char_forward(lv_obj_t * ta);
 
 /**
  * Set the text of a text area
- * @param ta pointer to a text area
- * @param txt pointer to the text
+ * @param obj       pointer to a text area object
+ * @param txt       pointer to the text
  */
-void lv_textarea_set_text(lv_obj_t * ta, const char * txt);
+void lv_textarea_set_text(lv_obj_t * obj, const char * txt);
 
 /**
  * Set the placeholder text of a text area
- * @param ta pointer to a text area
- * @param txt pointer to the text
+ * @param obj       pointer to a text area object
+ * @param txt       pointer to the text
  */
-void lv_textarea_set_placeholder_text(lv_obj_t * ta, const char * txt);
+void lv_textarea_set_placeholder_text(lv_obj_t * obj, const char * txt);
 
 /**
  * Set the cursor position
- * @param obj pointer to a text area object
- * @param pos the new cursor position in character index
- *             < 0 : index from the end of the text
- *             LV_TEXTAREA_CURSOR_LAST: go after the last character
+ * @param obj       pointer to a text area object
+ * @param pos       the new cursor position in character index
+ *                  < 0 : index from the end of the text
+ *                  LV_TEXTAREA_CURSOR_LAST: go after the last character
  */
-void lv_textarea_set_cursor_pos(lv_obj_t * ta, int32_t pos);
+void lv_textarea_set_cursor_pos(lv_obj_t * obj, int32_t pos);
 
 /**
  * Enable/Disable the positioning of the cursor by clicking the text on the text area.
- * @param ta pointer to a text area object
- * @param en true: enable click positions; false: disable
+ * @param obj       pointer to a text area object
+ * @param en        true: enable click positions; false: disable
  */
-void lv_textarea_set_cursor_click_pos(lv_obj_t * ta, bool en);
+void lv_textarea_set_cursor_click_pos(lv_obj_t * obj, bool en);
 
 /**
  * Enable/Disable password mode
- * @param ta pointer to a text area object
- * @param en true: enable, false: disable
+ * @param obj       pointer to a text area object
+ * @param en        true: enable, false: disable
  */
-void lv_textarea_set_password_mode(lv_obj_t * ta, bool en);
+void lv_textarea_set_password_mode(lv_obj_t * obj, bool en);
 
 /**
  * Configure the text area to one line or back to normal
- * @param ta pointer to a Text area object
- * @param en true: one line, false: normal
+ * @param obj       pointer to a text area object
+ * @param en        true: one line, false: normal
  */
-void lv_textarea_set_one_line(lv_obj_t * ta, bool en);
+void lv_textarea_set_one_line(lv_obj_t * obj, bool en);
 
 /**
  * Set a list of characters. Only these characters will be accepted by the text area
- * @param ta pointer to  Text Area
- * @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
+ * @param obj       pointer to a text area object
+ * @param list      list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
  */
-void lv_textarea_set_accepted_chars(lv_obj_t * ta, const char * list);
+void lv_textarea_set_accepted_chars(lv_obj_t * obj, const char * list);
 
 /**
  * Set max length of a Text Area.
- * @param ta pointer to  Text Area
- * @param num the maximal number of characters can be added (`lv_textarea_set_text` ignores it)
+ * @param obj       pointer to a text area object
+ * @param num       the maximal number of characters can be added (`lv_textarea_set_text` ignores it)
  */
-void lv_textarea_set_max_length(lv_obj_t * ta, uint32_t num);
+void lv_textarea_set_max_length(lv_obj_t * obj, uint32_t num);
 
 /**
  * In `LV_EVENT_INSERT` the text which planned to be inserted can be replaced by an other text.
  * It can be used to add automatic formatting to the text area.
- * @param ta pointer to a text area.
- * @param txt pointer to a new string to insert. If `""` no text will be added.
- *            The variable must be live after the `event_cb` exists. (Should be `global` or
- * `static`)
+ * @param obj       pointer to a text area object
+ * @param txt       pointer to a new string to insert. If `""` no text will be added.
+ *                  The variable must be live after the `event_cb` exists. (Should be `global` or `static`)
  */
-void lv_textarea_set_insert_replace(lv_obj_t * ta, const char * txt);
+void lv_textarea_set_insert_replace(lv_obj_t * obj, const char * txt);
 
 /**
  * Enable/disable selection mode.
- * @param ta pointer to a text area object
- * @param en true or false to enable/disable selection mode
+ * @param obj       pointer to a text area object
+ * @param en        true or false to enable/disable selection mode
  */
-void lv_textarea_set_text_sel(lv_obj_t * ta, bool en);
+void lv_textarea_set_text_sel(lv_obj_t * obj, bool en);
 
 /**
  * Set how long show the password before changing it to '*'
- * @param ta pointer to Text area
- * @param time show time in milliseconds. 0: hide immediately.
+ * @param obj       pointer to a text area object
+ * @param time      show time in milliseconds. 0: hide immediately.
  */
-void lv_textarea_set_password_show_time(lv_obj_t * ta, uint16_t time);
+void lv_textarea_set_password_show_time(lv_obj_t * obj, uint16_t time);
 
 /**
  * Set the label's alignment.
  * It sets where the label is aligned (in one line mode it can be smaller than the text area)
  * and how the lines of the area align in case of multiline text area
- * @param obj       pointer to a textarea obejct
+ * @param obj       pointer to a text area object
  * @param align     the align mode from ::lv_text_align_t
  */
 void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align);
@@ -214,87 +213,87 @@ void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align);
 
 /**
  * Get the text of a text area. In password mode it gives the real text (not '*'s).
- * @param ta pointer to a text area object
- * @return pointer to the text
+ * @param obj       pointer to a text area object
+ * @return          pointer to the text
  */
-const char * lv_textarea_get_text(const lv_obj_t * ta);
+const char * lv_textarea_get_text(const lv_obj_t * obj);
 
 /**
  * Get the placeholder text of a text area
- * @param ta pointer to a text area object
- * @return pointer to the text
+ * @param obj       pointer to a text area object
+ * @return          pointer to the text
  */
-const char * lv_textarea_get_placeholder_text(lv_obj_t * ta);
+const char * lv_textarea_get_placeholder_text(lv_obj_t * obj);
 
 /**
  * Get the label of a text area
- * @param ta pointer to a text area object
- * @return pointer to the label object
+ * @param obj       pointer to a text area object
+ * @return          pointer to the label object
  */
-lv_obj_t * lv_textarea_get_label(const lv_obj_t * ta);
+lv_obj_t * lv_textarea_get_label(const lv_obj_t * obj);
 
 /**
  * Get the current cursor position in character index
- * @param ta pointer to a text area object
- * @return the cursor position
+ * @param obj       pointer to a text area object
+ * @return          the cursor position
  */
-uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * ta);
+uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * obj);
 
 /**
  * Get whether the cursor click positioning is enabled or not.
- * @param ta pointer to a text area object
- * @return true: enable click positions; false: disable
+ * @param obj       pointer to a text area object
+ * @return          true: enable click positions; false: disable
  */
-bool lv_textarea_get_cursor_click_pos(lv_obj_t * ta);
+bool lv_textarea_get_cursor_click_pos(lv_obj_t * obj);
 
 /**
  * Get the password mode attribute
- * @param ta pointer to a text area object
- * @return true: password mode is enabled, false: disabled
+ * @param obj       pointer to a text area object
+ * @return          true: password mode is enabled, false: disabled
  */
-bool lv_textarea_get_password_mode(const lv_obj_t * ta);
+bool lv_textarea_get_password_mode(const lv_obj_t * obj);
 
 /**
  * Get the one line configuration attribute
- * @param ta pointer to a text area object
- * @return true: one line configuration is enabled, false: disabled
+ * @param obj       pointer to a text area object
+ * @return          true: one line configuration is enabled, false: disabled
  */
-bool lv_textarea_get_one_line(const lv_obj_t * ta);
+bool lv_textarea_get_one_line(const lv_obj_t * obj);
 
 /**
  * Get a list of accepted characters.
- * @param ta pointer to  Text Area
- * @return list of accented characters.
+ * @param obj       pointer to a text area object
+ * @return          list of accented characters.
  */
-const char * lv_textarea_get_accepted_chars(lv_obj_t * ta);
+const char * lv_textarea_get_accepted_chars(lv_obj_t * obj);
 
 /**
  * Get max length of a Text Area.
- * @param ta pointer to  Text Area
- * @return the maximal number of characters to be add
+ * @param obj       pointer to a text area object
+ * @return          the maximal number of characters to be add
  */
-uint32_t lv_textarea_get_max_length(lv_obj_t * ta);
+uint32_t lv_textarea_get_max_length(lv_obj_t * obj);
 
 /**
  * Find whether text is selected or not.
- * @param ta Text area object
- * @return whether text is selected or not
+ * @param obj       pointer to a text area object
+ * @return          whether text is selected or not
  */
-bool lv_textarea_text_is_selected(const lv_obj_t * ta);
+bool lv_textarea_text_is_selected(const lv_obj_t * obj);
 
 /**
  * Find whether selection mode is enabled.
- * @param ta pointer to a text area object
- * @return true: selection mode is enabled, false: disabled
+ * @param obj       pointer to a text area object
+ * @return          true: selection mode is enabled, false: disabled
  */
-bool lv_textarea_get_text_sel_en(lv_obj_t * ta);
+bool lv_textarea_get_text_sel_en(lv_obj_t * obj);
 
 /**
  * Set how long show the password before changing it to '*'
- * @param ta pointer to Text area
- * @return show time in milliseconds. 0: hide immediately.
+ * @param obj       pointer to a text area object
+ * @return          show time in milliseconds. 0: hide immediately.
  */
-uint16_t lv_textarea_get_password_show_time(lv_obj_t * ta);
+uint16_t lv_textarea_get_password_show_time(lv_obj_t * obj);
 
 /*=====================
  * Other functions
@@ -302,33 +301,33 @@ uint16_t lv_textarea_get_password_show_time(lv_obj_t * ta);
 
 /**
  * Clear the selection on the text area.
- * @param ta Text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_clear_selection(lv_obj_t * ta);
+void lv_textarea_clear_selection(lv_obj_t * obj);
 
 /**
  * Move the cursor one character right
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_cursor_right(lv_obj_t * ta);
+void lv_textarea_cursor_right(lv_obj_t * obj);
 
 /**
  * Move the cursor one character left
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_cursor_left(lv_obj_t * ta);
+void lv_textarea_cursor_left(lv_obj_t * obj);
 
 /**
  * Move the cursor one line down
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_cursor_down(lv_obj_t * ta);
+void lv_textarea_cursor_down(lv_obj_t * obj);
 
 /**
  * Move the cursor one line up
- * @param ta pointer to a text area object
+ * @param obj       pointer to a text area object
  */
-void lv_textarea_cursor_up(lv_obj_t * ta);
+void lv_textarea_cursor_up(lv_obj_t * obj);
 
 /**********************
  *      MACROS