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@regread error

 
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geicsge
Newbie


Joined: 27 Feb 2009
Posts: 18

PostPosted: Sat Oct 03, 2009 10:38 pm    Post subject: @regread error Reply with quote

A real example:

Code:
info @regtype(HLM,SOFTWARE\Classes\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder,CallForAttributes)


is INTEGER, ok...

Code:
info @regread(HLM,SOFTWARE\Classes\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder,CallForAttributes)


returns -268435456

it is INCORECT -> It must return 4026531840 -> F0000000

Integers larger than 2G become negative (a Delphi/VDS issue).


A "SOFTWARE" SOLUTION FOR THE INTEGER VALUES RETURNED BY @REGREAD() FUNCTION:

FFFFFFFF = 4294967295 = @sum($FFFFFFFF) -> @regread() = -1 !
FFFFFFFE = 4294967294 = @sum($FFFFFFFE) -> @regread() = -2 !
.................................................................................................

So, the solution:

Code:
%s =@regread(%a,%b,%c)
if @less(%s,0)
    %s =@sum(4294967295,1,%s)
end


Cool? Smile
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DaveŽ
Valued Contributor
Valued Contributor


Joined: 03 Sep 2005
Posts: 403
Location: Australia

PostPosted: Wed Oct 07, 2009 11:21 am    Post subject: Re: @regread error Reply with quote

geicsge wrote:
So, the solution:

Code:
%s =@regread(%a,%b,%c)
if @less(%s,0)
    %s =@sum(4294967295,1,%s)
end


Cool? Smile

Yes, and no. It only works if the integer, or file size, is between 2147483648 and 4294967295. There's no way to tell if the integer is supposed to be larger than 4294967295, so no way to know if you need to add 4294967295 or 6442450944, or 8589934590 etc.

_________________
cheers

DaveŽ
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