Changed the caching such that the window procedure is held until we added the HWND to the cache. Now we have a mysterious class not regsitered issue...

sysdata_windows.go

@@ -38,6 +38,9 @@ var classTypes = [nctypes]*classData{
 }
 
 func (s *sysData) make() (err error) {
+	sysDatasLock.Lock()
+	defer sysDatasLock.Unlock()
+
 	ret := make(chan uiret)
 	defer close(ret)
 	ct := classTypes[s.ctype]
@@ -64,6 +67,8 @@ func (s *sysData) make() (err error) {
 		return r.err
 	}
 	s.hwnd = _HWND(r.ret)
+	addSysData(s.hwnd, s)
+	// TODO parent
 	return nil
 }
 

sysdatacache_windows.go

@@ -18,18 +18,16 @@ var (
 	sysDatasLock sync.Mutex
 )
 
+// MUST HAVE LOCKED BEFORE CALLING
 func addSysData(hwnd _HWND, s *sysData) {
-	sysDatasLock.Lock()
-	defer sysDatasLock.Unlock()
 	sysDatas[hwnd] = &sdcEntry{
 		s:			s,
 		members:		map[_HMENU]*sysData{},
 	}
 }
 
+// MUST HAVE LOCKED BEFORE CALLING
 func addIDSysData(hwnd _HWND, id _HMENU, s *sysData) {
-	sysDatasLock.Lock()
-	defer sysDatasLock.Unlock()
 	if ss, ok := sysDatas[hwnd]; ok {
 		ss.members[id] = s
 	}