sprintf vs wsprintf

[Thanos Karras]

Hello fellow Windowers, my question is simple:

Why should I use wsprintf instead of sprintf?
I heard that using sprintf is not recommended!
If so, how do I format a string that contains floating point
values?

Thanks in advance

Thanos Karras
tha...@reef.cis.ufl.edu

[Dave Jones]

Thanos Karras (tha...@reef.cis.ufl.edu) wrote:
: Hello fellow Windowers, my question is simple:

:
: Why should I use wsprintf instead of sprintf?
: I heard that using sprintf is not recommended!

Not according to Petzold. He uses it just fine. "wsprintf" has the
advantage that it's in a Windows DLL and doesn't add to the size of your
EXE file.

: If so, how do I format a string that contains floating point
: values?
:
Use sprintf without fear for them. I suppose if you use it once it's
in your program and any other uses add nothing to the EXE size.
However, prudence with an eye on the future would indicate using wsprintf
whenever possible. For instance you might want to split an application
up, and if sprintf were used throughout, all the pieces would need a
copy linked in. Confine it to where you need it, and you might be
able to ensure that only one copy was required.
:

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||Dave Jones (d...@ekcolor.ssd.kodak.com) | Eastman Kodak Co. Rochester, NY |

[Scott Harper]

Dave Jones (d...@ekcolor.ssd.kodak.com) wrote:

: Thanos Karras (tha...@reef.cis.ufl.edu) wrote:
: : Hello fellow Windowers, my question is simple:
: :
: : Why should I use wsprintf instead of sprintf?
: : I heard that using sprintf is not recommended!
:
: Not according to Petzold. He uses it just fine. "wsprintf" has the
: advantage that it's in a Windows DLL and doesn't add to the size of your
: EXE file.
:
: : If so, how do I format a string that contains floating point
: : values?
: :
: Use sprintf without fear for them. I suppose if you use it once it's

Just remember to be careful about near/far pointers with sprintf...
And remember to *always* use far pointers with wsprintf...

--
Scott Harper Optical Data Systems, Inc.
sc...@ods.com 1101 E. Arapaho Road
(214) 234-6400 Richardson, TX 75081