test mouse optional event sys

hw3d/App.cpp

 #include "App.h"
+#include <sstream>
 
 App::App()
 	:
@@ -21,6 +22,20 @@ int App::Go()
 
 void App::DoFrame()
 {
+	while( const auto e = wnd.mouse.Read() )
+	{
+		switch( e->GetType() )
+		{
+		case Mouse::Event::Type::Move:
+		{
+			std::ostringstream oss;
+			oss << "Mouse moved to: (" << e->GetPosX() << "," << e->GetPosY() << ")\n";
+			wnd.SetTitle( oss.str() );
+			break;
+		}
+		}
+	}
+
 	const float c = sin( timer.Peek() ) / 2.0f + 0.5f;
 	wnd.Gfx().ClearBuffer( c,c,1.0f );
 	wnd.Gfx().DrawTestTriangle();