From 4e467d818b2eb3df74ff0b6087053e02211a10fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kinaou=20Herv=C3=A9?= <kinaouherve@gmail.com>
Date: Wed, 10 May 2017 17:49:49 +0200
Subject: [PATCH] Fix retrieving page image index in wxListbook

wxListbook::GetPageImage() always returned -1. Fix this by defining the mask
properly before calling wxListCtrl::GetItem().

Closes #17858.
---
 src/generic/listbkg.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/generic/listbkg.cpp b/src/generic/listbkg.cpp
index 013196dbaf..a7f9229d5e 100644
--- a/src/generic/listbkg.cpp
+++ b/src/generic/listbkg.cpp
@@ -237,6 +237,7 @@ int wxListbook::GetPageImage(size_t n) const
 {
     wxListItem item;
     item.SetId(n);
+    item.SetMask(wxLIST_MASK_IMAGE);
 
     if (GetListView()->GetItem(item))
     {