[Bug 48761] ConEmu does not highlight selection

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48761

--- Comment #1 from Roman Pišl  ---
Created attachment 66671
  --> https://bugs.winehq.org/attachment.cgi?id=66671
Fix

ConEmu calls:

InvalidateRect(mh_WndDC, NULL, FALSE);
GetClientRect(mh_WndDC, &rcClient)
RedrawWindow(mh_WndDC, &rcClient, NULL,
RDW_INTERNALPAINT|RDW_NOERASE|RDW_NOFRAME|RDW_UPDATENOW|RDW_VALIDATE);

so the whole window is validated before WM_PAINT is sent.

Attaching fix that doesn't break any tests. But is that correct solution?