2 files changed, 31 insertions, 0 deletions

diff --git a/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BootstrapperEngine.h b/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BootstrapperEngine.h
index 941e4241..96302bd1 100644
--- a/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BootstrapperEngine.h
+++ b/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BootstrapperEngine.h
@@ -111,6 +111,7 @@ enum BOOTSTRAPPER_ENGINE_MESSAGE
     BOOTSTRAPPER_ENGINE_MESSAGE_LAUNCHAPPROVEDEXE,
     BOOTSTRAPPER_ENGINE_MESSAGE_SETUPDATESOURCE,
     BOOTSTRAPPER_ENGINE_MESSAGE_COMPAREVERSIONS,
+    BOOTSTRAPPER_ENGINE_MESSAGE_GETRELATEDBUNDLEVARIABLE,
 };
 
 typedef struct _BAENGINE_APPLY_ARGS
@@ -426,6 +427,20 @@ typedef struct _BAENGINE_SETVARIABLEVERSION_RESULTS
     DWORD cbSize;
 } BAENGINE_SETVARIABLEVERSION_RESULTS;
 
+typedef struct _BAENGINE_GETRELATEDBUNDLEVARIABLE_ARGS
+{
+    DWORD cbSize;
+    LPCWSTR wzBundleId;
+    LPCWSTR wzVariable;
+} BAENGINE_GETRELATEDBUNDLEVARIABLE_ARGS;
+
+typedef struct _BAENGINE_GETRELATEDBUNDLEVARIABLE_RESULTS
+{
+    DWORD cbSize;
+    LPWSTR wzValue;
+    // Should be initialized to the size of wzValue.
+    SIZE_T cchValue;
+} BAENGINE_GETRELATEDBUNDLEVARIABLE_RESULTS;
 
 extern "C" typedef HRESULT(WINAPI *PFN_BOOTSTRAPPER_ENGINE_PROC)(
     __in BOOTSTRAPPER_ENGINE_MESSAGE message,
diff --git a/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BundleExtensionEngine.h b/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BundleExtensionEngine.h
index b397ec16..b585d1a2 100644
--- a/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BundleExtensionEngine.h
+++ b/src/api/burn/WixToolset.BootstrapperCore.Native/inc/BundleExtensionEngine.h
@@ -28,6 +28,7 @@ enum BUNDLE_EXTENSION_ENGINE_MESSAGE
     BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLESTRING,
     BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLEVERSION,
     BUNDLE_EXTENSION_ENGINE_MESSAGE_COMPAREVERSIONS,
+    BUNDLE_EXTENSION_ENGINE_MESSAGE_GETRELATEDBUNDLEVARIABLE,
 };
 
 typedef struct _BUNDLE_EXTENSION_ENGINE_COMPAREVERSIONS_ARGS
@@ -172,6 +173,21 @@ typedef struct _BUNDLE_EXTENSION_ENGINE_SETVARIABLEVERSION_RESULTS
     DWORD cbSize;
 } BUNDLE_EXTENSION_ENGINE_SETVARIABLEVERSION_RESULTS;
 
+typedef struct _BUNDLE_EXTENSION_ENGINE_GETRELATEDBUNDLEVARIABLE_ARGS
+{
+    DWORD cbSize;
+    LPCWSTR wzBundleId;
+    LPCWSTR wzVariable;
+} BUNDLE_EXTENSION_ENGINE_GETRELATEDBUNDLEVARIABLE_ARGS;
+
+typedef struct _BUNDLE_EXTENSION_ENGINE_GETRELATEDBUNDLEVARIABLE_RESULTS
+{
+    DWORD cbSize;
+    LPWSTR wzValue;
+    // Should be initialized to the size of wzValue.
+    SIZE_T cchValue;
+} BUNDLE_EXTENSION_ENGINE_GETRELATEDBUNDLEVARIABLE_RESULTS;
+
 extern "C" typedef HRESULT(WINAPI *PFN_BUNDLE_EXTENSION_ENGINE_PROC)(
     __in BUNDLE_EXTENSION_ENGINE_MESSAGE message,
     __in const LPVOID pvArgs,