From cf6a4556c55d4625bce4072d35ab4df07f3575d0 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 19 Oct 2014 12:58:57 +0000
Subject: [PATCH] Only select the first radio button if there is one in wxMSW
 wxRadioBox.

Don't call SetSelection(0) if the radio box is empty.

See #16630.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@78045 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/msw/radiobox.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/msw/radiobox.cpp b/src/msw/radiobox.cpp
index 053da03797..1f9132b627 100644
--- a/src/msw/radiobox.cpp
+++ b/src/msw/radiobox.cpp
@@ -245,7 +245,9 @@ bool wxRadioBox::Create(wxWindow *parent,
 #endif
 
     SetMajorDim(majorDim == 0 ? n : majorDim, style);
-    SetSelection(0);
+    // Select the first radio button if we have any buttons at all.
+    if ( n > 0 )
+        SetSelection(0);
     SetSize(pos.x, pos.y, size.x, size.y);
 
     // Now that we have items determine what is the best size and set it.