Re^2: How to call GetSystemDefaultLangID() with Win32::API

Well, Win32::API::Types lists LANGID as 's', which I assume means a (signed?) short. Actually, LANGID is typedef'd as WORD (in <winnt.h>), which is an unsigned short (not a LONG), so specifying USHORT should have fixed it, but still doesn't.

Your idea of specifying LONG certainly produces some output: I get similar output to you:

Returned '2011563020'
Lang ID: 0x77E6040C
[download]

but it's utter crap: the Lang ID is actually 0x0809 (2057) for UK English or 0x0409 (1033) for US English. (And the C program in my original post correctly produces these numbers.)

How do I get the /right/ answer out of it, not just any old rubbish?

Comment on Re^2: How to call GetSystemDefaultLangID() with Win32::API Download Code

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Re^3: How to call GetSystemDefaultLangID() with Win32::API by NetWallah (Canon) on Jun 23, 2004 at 18:39 UTC
OK - since this is a SHORT, you need to mask out the high-order bytes for this to make sense. The following code DOES produce the expected "1033" value for English: `use strict; use warnings; use Win32::API; Win32::API->Import('kernel32.dll', 'long GetSystemDefaultLangID()') or die "Can't import GetSystemDefaultLangID: $^E\n"; my $langid = GetSystemDefaultLangID() & 0xFFFF # Mask out the garbage + in high-order bytes or die "ERROR: LANGID Returned <undef>\n"; print "Returned '$langid'\n"; printf "Lang ID: 0x%04X\n", $langid; # Print output---- # Returned '1033' # Lang ID: 0x0409` [download] Earth first! (We'll rob the other planets later)	[reply] [d/l]
Re^4: How to call GetSystemDefaultLangID() with Win32::API by shay (Beadle) on Jun 24, 2004 at 12:34 UTC
Thanks for that. So is this a bug in Win32::API, then? It seems that it doesn't correctly handle functions returning WORD's. Pretending that I want a DWORD and then masking off the high WORD that I didn't actually want seems like a rather awkward way of doing things.	[reply]
Re^3: How to call GetSystemDefaultLangID() with Win32::API by BrowserUk (Patriarch) on Jun 23, 2004 at 20:58 UTC
How do I get the /right/ answer out of it, not just any old rubbish? You work out for yourself how to make the 9 character addition to the snippet I posted required to get the answer you need. `use strict; use warnings; use Win32::API::Prototype; ApiLink( 'kernel32.dll', 'LONG GetSystemDefaultLangID( VOID )' ) or die "Can't import GetSystemDefaultLangID: $^E\n"; my $langid = GetSystemDefaultLangID( 0 ) & 0xffff; if (defined $langid) { print "Returned '$langid'\n"; printf "Lang ID: 0x%04X\n", $langid; } else { print "Returned <undef>\n"; } __END__ P:\test>369060 Returned '1033' Lang ID: 0x0409` [download] Of course, I could have searched through the header files, looked up what a LANGID was, and added these characters to my post, but I didn't have any real interest in doing that. You need the solution, not me. Perhaps I could clean your keyboard for you? Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail "Memory, processor, disk in that order on the hardware side. Algorithm, algoritm, algorithm on the code side." - tachyon	[reply] [d/l]