Method HandleSystemEvent

olcPixelGameEngine.h:7186–7265

		}

		virtual olc::rcode HandleSystemEvent() override
		{
			using namespace X11;
			// Handle Xlib Message Loop - we do this in the
			// same thread that OpenGL was created so we dont
			// need to worry too much about multithreading with X11
			XEvent xev;
			while (XPending(olc_Display))
			{
				XNextEvent(olc_Display, &xev);
				if (xev.type == Expose)
				{
					XWindowAttributes gwa;
					XGetWindowAttributes(olc_Display, olc_Window, &gwa);
					ptrPGE->olc_UpdateWindowSize(gwa.width, gwa.height);
				}
				else if (xev.type == ConfigureNotify)
				{
					XConfigureEvent xce = xev.xconfigure;
					ptrPGE->olc_UpdateWindowSize(xce.width, xce.height);
				}
				else if (xev.type == KeyPress)
				{
					KeySym ks;

					// DragonEye still loves numpads, but this is a better way
					XLookupString(&xev.xkey, NULL, 0, &ks, NULL);

					if (ks != NoSymbol)
						ptrPGE->olc_UpdateKeyState(ks, true);
				}
				else if (xev.type == KeyRelease)
				{
					KeySym ks;
					XLookupString(&xev.xkey, NULL, 0, &ks, NULL);

					if (ks != NoSymbol)
						ptrPGE->olc_UpdateKeyState(ks, false);
				}
				else if (xev.type == ButtonPress)
				{
					switch (xev.xbutton.button)
					{
					case 1:	ptrPGE->olc_UpdateMouseState(0, true); break;
					case 2:	ptrPGE->olc_UpdateMouseState(2, true); break;
					case 3:	ptrPGE->olc_UpdateMouseState(1, true); break;
					case 4:	ptrPGE->olc_UpdateMouseWheel(120); break;
					case 5:	ptrPGE->olc_UpdateMouseWheel(-120); break;
					default: break;
					}
				}
				else if (xev.type == ButtonRelease)
				{
					switch (xev.xbutton.button)
					{
					case 1:	ptrPGE->olc_UpdateMouseState(0, false); break;
					case 2:	ptrPGE->olc_UpdateMouseState(2, false); break;
					case 3:	ptrPGE->olc_UpdateMouseState(1, false); break;