64-Bit Scrolling

[Jonathan Wood]

I noticed that all documentation for the SCROLLINFO structure (used with
SetScrollInfo) just uses int or UINT for structure members as opposed to
INT_PTR.

Does this mean 64-bit Windows does not support 64-bit scroll values?

I have an application where the scroll range and position could exceed 32
bits. Has anyone already worked out the algorithm to make this work on
Win32?

Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

 

[Tony Sperling]

Re: 64-Bit Scrolling

Ahhh, I'm rusty, but on a 64bit system isn't the INT 64bit wide?

Also, this 'group' is mostly a GUI (General User Issues) forum, you might
search out a developer hangout.


Tony. . .


"Jonathan Wood" <jwood@softcircuits.com> wrote in message
news:enW$JsJyHHA.4392@TK2MSFTNGP04.phx.gbl...
> I noticed that all documentation for the SCROLLINFO structure (used with
> SetScrollInfo) just uses int or UINT for structure members as opposed to
> INT_PTR.
>
> Does this mean 64-bit Windows does not support 64-bit scroll values?
>
> I have an application where the scroll range and position could exceed 32
> bits. Has anyone already worked out the algorithm to make this work on
> Win32?
>
> Thanks.
>
> --
> Jonathan Wood
> SoftCircuits Programming
> http://www.softcircuits.com
>

 

[Jonathan Wood]

Re: 64-Bit Scrolling

No, I believe int will continue to be 32-bits. At least, why would MS come
up with all the INT_PTR, DWORD_PTR, etc. types?

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Tony Sperling" <tony.sperling@dbREMOVEmail.dk> wrote in message
news:uqGAmTKyHHA.1204@TK2MSFTNGP03.phx.gbl...
> Ahhh, I'm rusty, but on a 64bit system isn't the INT 64bit wide?
>
> Also, this 'group' is mostly a GUI (General User Issues) forum, you might
> search out a developer hangout.
>
>
> Tony. . .
>
>
> "Jonathan Wood" <jwood@softcircuits.com> wrote in message
> news:enW$JsJyHHA.4392@TK2MSFTNGP04.phx.gbl...
>> I noticed that all documentation for the SCROLLINFO structure (used with
>> SetScrollInfo) just uses int or UINT for structure members as opposed to
>> INT_PTR.
>>
>> Does this mean 64-bit Windows does not support 64-bit scroll values?
>>
>> I have an application where the scroll range and position could exceed 32
>> bits. Has anyone already worked out the algorithm to make this work on
>> Win32?
>>
>> Thanks.
>>
>> --
>> Jonathan Wood
>> SoftCircuits Programming
>> http://www.softcircuits.com
>>
>
>