A small problem between notepad and Microsoft Input Method

When I use NotePad to write text today, I use the micro-soft Pinyin input method. In order to display more windows on the screen, I adjusted the window in Notepad relatively small. The following problem was found during text editing.

When the text is added to the previous line, the unconfirmed text that you just entered (which is indicated by a dotted line under the undetermined character in the soft-soft input method) cannot be displayed in the previous line, it overwrites the text of the next line, and there is still a problem with the wrong line. However, when the text is determined, it will appear in the appropriate position. This can happen whether or not it is an automatic line feed.

I tested it in Word. In the same case, Word will automatically scroll to the right, regardless of whether the text is confirmed. In the same way, the work is also completed by rolling.

I think this problem may occur because Word and WordPad have the concept of "page. If the current window does not show this row, the scroll bar will appear and scroll to the right until the maximum width of the page is reached. This concept is not found in notepad, And the rows are determined based on the width and width of the current window. When the window size is adjusted, the number of text in the row varies with the window width. If the same problem occurs in Word and Wordpad, the number of text in the row is not changed because of the window width.