Hi Robert,
I've just done a review and would much rather avoid another cmake
option and check for the support at runtime.
Would it be possible to check for the multi-touch support at runtime
rather than require a build against Win7? How about doing a runtime
check for the RegisterTouchWindow() function like we do for OpenGL
functions?
I myself would have preferred this, too.
The problem is: I need structures and definitions from an Windows 7 SDK,
not present in VS 2005 and VS2008.
A requirement for this SDK will break compilation on default
installations of Visual Studio 2005 and 2008. i.e. roughly 90% of todays
Windows OSG users.
I have no idea how to detect compile time presence of support for a
specific SDK on Windows, since I have to use the WINNT macro to _set_
the required SDK version.
A quick google search didn't revealed anything useable.
So I think the way is to add an cmake variable.
Runtime detection of RegisterTouchWindow seems no to be a problem and
can be added, if you prefer.
Greetings,
Olaf
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