windows: fix

Author: igagis

src/ruisapp/glue/windows/display.cxx

@@ -391,7 +391,7 @@ display_wrapper::window_class_wrapper::window_class_wrapper(
 	WNDCLASSA wc;
 
 	wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // redraw on resize, own DC for window
-	wc.lpfnWndProc = &window_procedure;
+	wc.lpfnWndProc = window_procedure;
 	wc.cbClsExtra = 0; // no extra window data
 	wc.cbWndExtra = 0; // no extra window data
 	wc.hInstance = GetModuleHandle(nullptr); // instance handle