commctl32: TaskDialog

[Fabian Maurer]

Hello,

just a question about the TaskDialog/TaskDialogIndirect functions. We already 
had a few patches in February  2015, but they weren't accepted for some 
reason.
I'd start from scratch anyway, but something to look out for, mistakes that 
stopped the old series from being accepted?
We're in code-freeze now, but I'd already start to give it a try.

Another thing, since it's an internal UI class, how do you write test cases 
for those? I can probably test return value with simulated clicks, but after 
all, it's mostly visual whether control are properly aligned and shown.

Fabian