Hugh McMaster : comctl32/listview: Initialize marqueeRect from left-click coordinates before starting a marquee highlight.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: daf95aaadf3a59f0ccc129a853327417b5e4f07c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=daf95aaadf3a59f0ccc129a85...

Author: Hugh McMaster 
Date:   Mon Apr 26 20:59:51 2021 +1000

comctl32/listview: Initialize marqueeRect from left-click coordinates before starting a marquee highlight.

The infoPtr->marqueeRect structure is not currently initialized before the
marquee highlight sequence starts, resulting in the RECT having initial
coordinates of (0,0)-(0,0). These coordinates cause the first item in
the listview control to be identified as being within the range of the
marqueeRect's coordinates.

That item is then set to LVIS_SELECTED even though it is not part of the
marquee selection.

Signed-off-by: Hugh McMaster 
Signed-off-by: Nikolay Sivov 
Signed-off-by: Alexandre Julliard

---

dlls/comctl32/listview.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index 05a772ab175..8cbfee834ce 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -4113,6 +4113,7 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN

/* Begin selection and capture mouse */
                         infoPtr->bMarqueeSelect = TRUE;
+                        infoPtr->marqueeRect = rect;
                         SetCapture(infoPtr->hwndSelf);
                     }
                 }