Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
use warnings; use strict; my $have_tie_registry = defined eval q{ use Win32::TieRegistry Delimiter=>"/"; 1 }; if ($have_tie_registry) { print "Have module\n"; our $Registry; my $IEKey = $Registry->{'HKEY_CURRENT_USER/Software/' .'Microsoft/Internet Explorer/Main/'}; print "<$_>\n" for keys %$IEKey; } else { chomp( my $err = $@//'unknown' ); die $err if $^O eq 'MSWin32'; print "On $^O, don't have module (reason: '$err')\n"; } print "Continuing program...\n"; __END__ #### Linux: On linux, don't have module (reason: 'Can't locate Win32/TieRegistry.p +m in @INC (you may need to install the Win32::TieRegistry module) (@I +NC contains: ...) at (eval 1) line 1. BEGIN failed--compilation aborted at (eval 1) line 1.') Continuing program... ### Windows: Have module <...> <...> ... Continuing program...

(Update: Note that as opposed to several of the other solutions here, this uses slightly different logic: if Win32::TieRegistry is available, it is used no matter which OS this is being run on; otherwise, if it's not available, that's only a fatal error if this is being run on Windows. Of course that logic can be changed, my point was mostly to show the my $have_module = eval q{ use Module; 1 }; technique.)

See also:

In reply to Re: Conditional use of Win32::TieRegistry by haukex
in thread Conditional use of Win32::TieRegistry by hilitai

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (5)
As of 2022-05-19 08:00 GMT
Find Nodes?
    Voting Booth?
    Do you prefer to work remotely?

    Results (71 votes). Check out past polls.