Some applications subclass the combo box and handle WM_ERASEBKGND themselves, without using WS_CLIPCHILDREN. This causes them to erase over the editbox child, so it requires a refresh as well.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=22260 Signed-off-by: Gabriel Ivăncescu gabrielopcode@gmail.com --- dlls/comctl32/combo.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/dlls/comctl32/combo.c b/dlls/comctl32/combo.c index 4208ff8..2f3652c 100644 --- a/dlls/comctl32/combo.c +++ b/dlls/comctl32/combo.c @@ -1003,8 +1003,7 @@ static void CBDropDown( LPHEADCOMBO lphc )
if( !(lphc->wState & CBF_NOREDRAW) ) - RedrawWindow( lphc->self, NULL, 0, RDW_INVALIDATE | - RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN ); + RedrawWindow( lphc->self, NULL, 0, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
EnableWindow( lphc->hWndLBox, TRUE ); if (GetCapture() != lphc->self)