Describes the cause and action for error messages.
Error Message(English)：
vba cancel userform close
VBA Close UserForm with Unload Me - wellsr.com
https://wellsr.com/vba/2016/excel/vba-close-userform-with-unload-me/
Close workbook with Userform - Stack Overflow
https://stackoverflow.com/questions/36715888/close-workbook-with-userform
How to close a userform when Query_Close's cancel arguement ...
https://stackoverflow.com/questions/46030854/how-to-close-a-userform-when-query-closes-cancel-arguem・・・
Closing a Userform with Unload Me doesn't work
https://stackoverflow.com/questions/9491001/closing-a-userform-with-unload-me-doesnt-work
Close Userform with "X" and exit Excel
https://stackoverflow.com/questions/26381382/close-userform-with-x-and-exit-excel
Execute code when form is closed in VBA (Excel 2007)
https://stackoverflow.com/questions/3511903/execute-code-when-form-is-closed-in-vba-excel-2007
VBA応用(ユーザーフォームの閉じる([×])ボタン制御)
http://www.asahi-net.or.jp/~ef2o-inue/vba_o/sub05_100_050.html
フォームを閉じる - フォーム - Excelフォーム - OfficePro
https://www.officepro.jp/excelvbaform/form_form/index3.html
Hide and/or disable the red X to close a Userform | VBA & Macros ...
https://www.myonlinetraininghub.com/excel-forum/vba-macros/hide-andor-disable-the-red-x-to-close-a-u・・・