2 questions

[HarryW]

I figured there would be too, and I did look in the MSDN, but didn't find anything. Maybe I didn't look hard enough.

[Vlatko]

Have a look at this

isdigit, iswdigit

isdigit returns a non-zero value if c is a decimal digit (0 – 9). iswdigit returns a non-zero value if c is a wide character corresponding to a decimal-digit character. Each of these routines returns 0 if c does not satisfy the test condition.

[Vlatko]

Here are some else if you are ineterested

isalnum

Alphanumeric (A – Z, a – z, or 0 – 9) 

isalpha

Alphabetic (A – Z or a – z)

__isascii

ASCII character (0x00 – 0x7F)

iscntrl

Control character (0x00 – 0x1F or 0x7F)

__iscsym

Letter, underscore, or digit

__iscsymf

Letter or underscore

isdigit

Decimal digit (0 – 9)

isgraph

Printable character except space ( )

islower

Lowercase letter (a – z)

isprint

Printable character including space (0x20 – 0x7E)

ispunct

Punctuation character

isspace

White-space character (0x09 – 0x0D or 0x20)

isupper

Uppercase letter (A – Z)

isxdigit

Hexadecimal digit (A – F, a – f, or 0 – 9)

[HarryW]

Well I get bored easily looking at lists of function names, so I didn't look that hard

[Vlatko]

It is really funny nobody remembered the isdigit function. I searched the isalpha function to get to the isdigit.

[Jop]

isn't there a IsCharAlphaNumeric Api Function?

Yep there is
http://msdn.microsoft.com/library/ps...rings_4x43.htm

For some reason I tend to do everything with the API rather than C libraries (altough this eliminates the possibility of cross-platform code, it saves in FileSize)

[parksie]

Look for TINYCRT on MSDN if you want to keep your file sizes down and you use API most of the time.

[Jop]

Thanks mike, will take a look at it