Avoid setting infoPtr->firstVisible to NULL in TREEVIEW_Sort.
diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c
index 1edfbc3..c33dd5e 100644
--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -3063,6 +3063,7 @@
break;
}
+ if (!item) item = parent->firstChild;
TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
}
@@ -5185,6 +5186,9 @@
TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
+
+ TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
+
if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
else
{