IsMail()
语法
Result = IsMail(#Mail)概要
Tests if the given mail number is valid and if the mail has been correctly initialized.
参数
The number to test.
返回值
Returns nonzero if the specified number was valid.
Remarks
This function is bulletproof and may be used with any value. This is the correct way to ensure that the mail is ready for use.
参阅
CreateMail(), FreeMail()
已支持操作系统
所有