From 34efac1a215ba3104a6759a867e28f1ca2bbe0a8 Mon Sep 17 00:00:00 2001
From: Maarten Bent <MaartenBent@users.noreply.github.com>
Date: Sun, 26 May 2019 13:38:23 +0200
Subject: [PATCH] Don't call unimplemented virtual
 wxListCtrl::OnGetItemIsChecked()

This method should only be called when checkboxes are enabled and
calling it unconditionally triggered an assert failure.

See #18393.

Closes https://github.com/wxWidgets/wxWidgets/pull/1330
---
 src/generic/listctrl.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/generic/listctrl.cpp b/src/generic/listctrl.cpp
index 1414a9386e..b76844b4bf 100644
--- a/src/generic/listctrl.cpp
+++ b/src/generic/listctrl.cpp
@@ -1681,7 +1681,11 @@ void wxListMainWindow::CacheLineData(size_t line)
         ld->SetImage(col, listctrl->OnGetItemColumnImage(line, col));
     }
 
-    ld->Check(listctrl->OnGetItemIsChecked(line));
+    if ( HasCheckBoxes() )
+    {
+        ld->Check(listctrl->OnGetItemIsChecked(line));
+    }
+
     ld->SetAttr(listctrl->OnGetItemAttr(line));
 }