From Clomosy Docs
function Length(S: String): Integer;
The length function returns the element count of the number of characters in the S. It is often used to loop around all the characters in a string.
Example
var
valueStr : string;
{
valueStr = 'Clomosy';
ShowMessage('Length of valueStr = '+IntToStr(Length(valueStr)));
}
Output:
Length of valueStr = 7