VSTPlugin-Win.cpp:

Replace "NULL" with "nullptr" based on Vs2015 recommendation.

win/VSTPlugin-win.cpp

@@ -5,26 +5,26 @@
 #include <windows.h>
 
 AEffect* VSTPlugin::loadEffect() {
-	AEffect *plugin = NULL;
+	AEffect *plugin = nullptr;
 
 	wchar_t *wpath;
 	os_utf8_to_wcs_ptr(pluginPath.c_str(), 0, &wpath);
 	dllHandle = LoadLibraryW(wpath);
 	bfree(wpath);
-	if(dllHandle == NULL) {
+	if(dllHandle == nullptr) {
 		printf("Failed trying to load VST from '%s', error %d\n",
 			pluginPath, GetLastError());
-		return NULL;
+		return nullptr;
 	}
 
 	vstPluginMain mainEntryPoint =
 		(vstPluginMain)GetProcAddress(dllHandle, "VSTPluginMain");
 
 	if (!mainEntryPoint) {
-		return NULL;
+		return nullptr;
 	}
 
-	// Instantiate the plugin
+	// Instantiate the plug-in
 	plugin = mainEntryPoint(hostCallback_static);
 	plugin->user = this;
 	return plugin;
@@ -33,6 +33,6 @@ AEffect* VSTPlugin::loadEffect() {
 void VSTPlugin::unloadLibrary() {
 	if (dllHandle) {
 		FreeLibrary(dllHandle);
-		dllHandle = NULL;
+		dllHandle = nullptr;
 	}
 }