Add 'QML window resize/move flicker'

QML-window-resize%2Fmove-flicker.md

@@ -0,0 +1,11 @@
+Fix:
+```
+QCoreApplication::setAttribute(Qt::AA_UseOpenGLES);
+```
+or
+```
+QCoreApplication::setAttribute(Qt::AA_UseSoftwareOpenGL);
+```
+The first option uses OpenGl2DirecX angle library (like Google Chrome)
+
+The second one uses OpenGL emulation by software... for small programs work very good and is 100% compatible with old OS like Windows XP.