Implement IComponentHandler::beginEdit()

src/wine-host/bridges/vst3-impls/component-handler-proxy.cpp

@@ -41,9 +41,8 @@ Vst3ComponentHandlerProxyImpl::queryInterface(const Steinberg::TUID _iid,
 
 tresult PLUGIN_API
 Vst3ComponentHandlerProxyImpl::beginEdit(Steinberg::Vst::ParamID id) {
-    // TODO: Implement
-    std::cerr << "TODO: IComponentHandler::beginEdit()" << std::endl;
-    return Steinberg::kNotImplemented;
+    return bridge.send_message(YaComponentHandler::BeginEdit{
+        .owner_instance_id = owner_instance_id(), .id = id});
 }
 
 tresult PLUGIN_API Vst3ComponentHandlerProxyImpl::performEdit(

src/wine-host/bridges/vst3.h

@@ -103,6 +103,16 @@ class Vst3Bridge : public HostBridge {
      */
     void run() override;
 
+    /**
+     * Send a callback message to the host return the response. This is a
+     * shorthand for `sockets.vst_host_callback.send_message` for use in VST3
+     * interface implementations.
+     */
+    template <typename T>
+    typename T::Response send_message(const T& object) {
+        return sockets.vst_host_callback.send_message(object, std::nullopt);
+    }
+
    private:
     /**
      * Generate a nique instance identifier using an atomic fetch-and-add. This