add qCallQueued

libs/piqt/piqt_macros.h

@@ -44,6 +44,20 @@
 	PIQt::qpiConnect(src, &decltype(PIQt::removePtr(src))::sig, tgt, &(tgt)->__stat_eh_##handler##__);
 
 
+/// much more compact and easy to use alternative to QMetaObject::invokeMethod(... , Qt::QueuedConnection)
+/// examples:
+/// qCallQueued(this, &MyClass::myFunc);
+/// qCallQueued(this, &MyClass::myFuncWithInt, 0xFF);
+/// qCallQueued(this, &MyClass::myFuncWithIntAndString, 0xAB, "string");
+template<typename O, typename F, typename... Args>
+void qCallQueued(O * o, F f, Args... args) {
+	QMetaObject::invokeMethod(
+		o,
+		[o, f, args...]() { (o->*f)(args...); },
+		Qt::QueuedConnection);
+}
+
+
 namespace PIQt {
 
 template<typename T>