Convert LPCSTR command line parameter to DWORD


rookie question:

I'm using API that expects DWORD value as one of its parameters. Other parameters use LPCSTR and work fine. How do I convert and pass this value from the command line? I don't really care what format the command-line param will be in- it can be either a number or the XXXX_DISABLED string.

Many thanks,
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You can convert string to number using atoi function or sscanf. sscanf returns number of successfully converted characters, this allows to test whether command line contains valid number.

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strtoul converts a string to an unsigned long (DWORD):
strtoul(const char *nptr,  char **endptr,  int base);

So in your case, if you have an LPCSTR named "lpszStr" you may want to use:

DWORD dwValue = strtoul(lpszStr, NULL, NULL);

The function's prototype is located in stdlib.h, so be sure to include it...

Good luck,
      Stuart Konen

dcx45Author Commented:
Guys, both comments v. helpful, points go to Alex as he was first and the solution worked...
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