/**
* @brief Sets the ROI(Region Of Interest) area of display.
* @since_tizen 3.0
- * @remarks If no display is set, no operation is performed.
- * @remarks Before set display ROI area, #PLAYER_DISPLAY_MODE_DST_ROI must be set with player_set_display_mode().
- * The minimum value of width and height are 1.
+ * @remarks If no display is set, no operation is performed and
+ * the ROI area is valid only in #PLAYER_DISPLAY_MODE_DST_ROI display mode.
+ * @remarks The minimum value of width and height are 1.
+ * @remarks ROI area can be set before setting ROI display mode. (since 4.0)
* @param[in] player The handle to the media player
* @param[in] x X coordinate of area
* @param[in] y Y coordinate of area
* @retval #PLAYER_ERROR_NONE Successful
* @retval #PLAYER_ERROR_INVALID_PARAMETER Invalid parameter
* @retval #PLAYER_ERROR_INVALID_OPERATION Invalid operation
- * @pre display_mode must be set to #PLAYER_DISPLAY_MODE_DST_ROI.
* @pre The player state must be one of #PLAYER_STATE_IDLE, #PLAYER_STATE_READY, #PLAYER_STATE_PLAYING, or #PLAYER_STATE_PAUSED.
* @see player_set_display()
* @see player_set_display_mode()