This function returns a hexadecimal number string from NumberExpression with the letters in either upper or lower case according to the CaseExpression parameter. If CaseExpression is false, the function returns hexadecimal characters in lowercase and if it is true the string is in upper case.

The following method places in the print window the hexadecimal equivalent of the numbers 1 to 100 in upper case.

int n

for n = 1 to 100

print HexStr(n, 1)

next