storing double in registry

[Vishi Anand]

How does one do this? I am using registry functions available as part of
toolbox innstrument driver.

[Vishi Anand]

Seems unsigned longs are the only way, so will have to convert my doubles to
ints.

vishi

"Vishi Anand" wrote in message
news:3e52a4c0@newsgroups....
> How does one do this? I am using registry functions available as part of
> toolbox innstrument driver.
>
>
>
>

[PaulB333]

You can store a double in the registry as a string.

e.g.
sprintf((char *)buffer, "%f", (float)dval);
error = RegWriteString (userRootKey, userSubKeyName, userValName, buffer);

and read with:
error = RegReadString (userRootKey, userSubKeyName, userValName, buffer, 256, &realSize);
if (!error) sscanf((char *)buffer, "%f", &fval);

But you may have to be careful if you are really worried about precision. I am not sure what the maximum string length can be.

Paul.