Describes the cause and action for error messages.
Error Message(English):
vba cancel button on form
Excel VBA を学ぶなら moug モーグ | 即効テクニック | ユーザーフォーム ...
https://www.moug.net/tech/exvba/0090019.html
Office TANAKA - Excel VBA Tips[[×]ボタンで閉じられなくする]
http://officetanaka.net/excel/vba/tips/tips18.htm
[ExcelVBA] UserFormの×(閉じる)ボタンへの対策方法いろいろ *Ateitexe
https://ateitexe.com/excelvba-judge-userform-close-button/
How to exit a VBA macro when the form's "X" button is clicked ...
https://stackoverflow.com/questions/50950037/how-to-exit-a-vba-macro-when-the-forms-x-button-is-clic・・・
VBA Excel-How to work with cancel button in the MS Excel close ...
https://stackoverflow.com/questions/14398652/vba-excel-how-to-work-with-cancel-button-in-the-ms-exce・・・
VBA Close UserForm with Unload Me - wellsr.com
https://wellsr.com/vba/2016/excel/vba-close-userform-with-unload-me/
k窓 ExcelVBA技 ユーザーフォーム
http://www2.aqua-r.tepm.jp/~kmado/ke13u006.html
フォーム ユーザーフォーム ダイアログ VBA エクセル Excel [エクセルの学校]
http://www.excel.studio-kazu.jp/lib/e1rw/e1rw.html
Excel VBA Userform - Easy Excel Macros
https://www.excel-easy.com/vba/userform.html