Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47089Signed-off-by: Fabian Maurer <dark.shadow4@web.de>

Signed-off-by: Bernhard Kölbl <bkoelbl@codeweavers.com>

And synchronize with thread display when necessary.

Resolves a scan-build warning.

Introduced in 36963b6d.

To reduce the number of casts required and avoid a scan-build warning.