Re: Most significant bit in WM_COMMAND wparam
From: Just Me (groups_at_a-znet.com)
Date: 02/07/05
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Date: Mon, 7 Feb 2005 16:17:47 -0500
guess that's it
thanks
"jeff" <msnews.x.jsd@xoxy.net> wrote in message
news:eno0LpUDFHA.1012@TK2MSFTNGP14.phx.gbl...
> I'd guess that the purpose is to avoid sign extension that would result in
> the
> division operation.
>
> " Just Me" <groups@a-znet.com> wrote in message
> news:OYg%23tmHDFHA.628@TK2MSFTNGP15.phx.gbl...
>> I've seen this in examples:
>>
>> Case User.WM_COMMAND
>>
>> Select Case (m.WParam.ToInt32 And &H7FFF0000) \ &H10000
>>
>>
>>
>> My question is why is the most significant bit ignored?
>>
>> Does it have some significance or maybe not allowed
>
>
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