fix misdesign of VST GUI thread

git-svn-id: svn://localhost/ardour2/trunk@1428 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/fst/fst.h

@@ -82,6 +82,7 @@ extern "C" {
 #endif
 
 extern int  fst_init ();
+extern void fst_finish ();
 
 extern FSTHandle* fst_load (const char*);
 extern int        fst_unload (FSTHandle*);

libs/fst/vstwin.c

@@ -326,12 +326,12 @@ DWORD WINAPI gui_event_loop (LPVOID param)
 		fst_error ("cannot set timer on dummy window");
 	}
 
-	while (true) {
+	while (1) {
 
 		GetMessageA (&msg, NULL, 0,0);
 
-		if (msg.message == WM_QUIT) {
-			cerr << "WM QUIT received\n";
+		if (msg.message == WM_SYSTEMERROR) {
+			/* sent when this thread is supposed to exist */
 			break;
 		}
 		
@@ -418,6 +418,12 @@ fst_init ()
 	return 0;
 }
 
+void
+fst_finish ()
+{
+	PostThreadMessageA (gui_thread_id, WM_SYSTEMERROR, 0, 0);
+}
+
 int
 fst_run_editor (FST* fst)
 {