ReadPreferenceDouble()
Syntax
Result.d = ReadPreferenceDouble(Keyword$, DefaultValue)Description
Try to read the specified associated 'Keyword$' value. If PreferenceGroup() has been used, then the search is restricted to the current group. If the 'Keyword$' isn't found or the preference file haven't been opened correctly (file missing for example) the specified default value is returned.
Supported OS
Windows, Linux, MacOS X