Hacker’s Guide to Visual FoxPro
An irreverent look at how Visual FoxPro really works. Tells you the inside scoop on every command, function, property, event and method of Visual FoxPro.
ISLEADBYTE()
This function (added in version 3.0b) lets you determine whether a string is double-byte or single-byte. It tells you whether the first byte in the string is a “lead byte” (the first half of a double-byte character). We’ve confirmed that it returns .F. for single-byte characters, but can’t test the other case.
Usage
lDoubleByte = ISLEADBYTE( cString )