From 9453eaa9a38f78e248526ddd996485140a5d4d9a Mon Sep 17 00:00:00 2001
From: Sean Hall <r.sean.hall@gmail.com>
Date: Sun, 13 Mar 2022 23:51:36 -0500
Subject: Make engine skip planning if there are any downgrade related bundles.

Fixes 6677, 6722
Reverts 6537
---
 src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs')

diff --git a/src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs b/src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs
index 4ab0f8d9..d4fe8320 100644
--- a/src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs
+++ b/src/api/burn/WixToolset.Mba.Core/IBootstrapperApplication.cs
@@ -1160,6 +1160,16 @@ namespace WixToolset.Mba.Core
             [MarshalAs(UnmanagedType.U4)] ref RelatedBundlePlanType pRequestedType,
             [MarshalAs(UnmanagedType.Bool)] ref bool fCancel
             );
+
+        /// <summary>
+        /// See <see cref="IDefaultBootstrapperApplication.ApplyDowngrade"/>.
+        /// </summary>
+        [PreserveSig]
+        [return: MarshalAs(UnmanagedType.I4)]
+        int OnApplyDowngrade(
+            [MarshalAs(UnmanagedType.I4)] int hrRecommended,
+            [MarshalAs(UnmanagedType.I4)] ref int hrStatus
+            );
     }
 
     /// <summary>
-- 
cgit v1.2.3-55-g6feb