[PATCH] user32: use InvalidateRect to repaint buttons

[Mark Harmstone]

At present, whenever a button needs to be redrawn user32 calls its own
internal function. This causes problems if the button is subclassed, as
the superclass then won't receive the WM_PAINT message - this is why
themed buttons lose their theme when you click on them. This patch changes
it to instead call InvalidateRect, which will force a WM_PAINT message
to be sent to the topmost class.

---
 dlls/user32/button.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)


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