Avoid SDL crash when starting 86Box in initial fullscreen mode (#946)

src/win/win_ui.c

@@ -1027,10 +1027,6 @@ ui_init(int nCmdShow)
 	return(5);
     }
 
-    /* Initialize the rendering window, or fullscreen. */
-    if (start_in_fullscreen)
-	plat_setfullscreen(1);
-
     /* Set up the current window size. */
     plat_resize(scrnsz_x, scrnsz_y);
 
@@ -1040,6 +1036,10 @@ ui_init(int nCmdShow)
     /* Set the PAUSE mode depending on the renderer. */
     plat_pause(0);
 
+    /* Initialize the rendering window, or fullscreen. */
+    if (start_in_fullscreen)
+	plat_setfullscreen(1);
+
     /* If so requested via the command line, inform the
      * application that started us of our HWND, using the
      * the hWnd and unique ID the application has given