Introduction - If you have any usage issues, please Google them yourself
VB prohibit users to copy text or paste text, simply open the " Copy" function is prohibited, even the text on the page can not be copied, the copy operation on the computer can not be used, even if the copy is successful, this program also can not paste, but even the " PrtScr" on the keyboard, screen capture key can not be used to prohibit the paste function often is greyed state.