IsCurrencyNumber returns a boolean value of True or False.

True if the input string contains only numeric characters, and True if the string contains currency format symbols and numerals.   

Any other string returns FALSE.

If this function returns True then you can safely use a conversion function on it to turn it into a numeric data type.   The currency symbols allowable within this function are defined within the computer’s regional settings. Please refer to Conversion Functions for more information.

Also refer to IsNumber which is a function that checks if the string contains only numbers without any currency formatting. This information is available at IsNumber.

Declaration: Function IsCurrencyNumber(const S : string) : Boolean

An example follows.

Procedure OnMapEvent(var Value:variant);
begin
Value := IsCurrencyNumber('abc123'); // returns FALSE
Value := IsCurrencyNumber('758'); // returns TRUE
Value := IsCurrencyNumber('$5,323.61'); // returns TRUE
end;