Used the STemWin with quite a few demos on STM32F746G-Discovery so far succesfully, yet it seems that the GUI_CopyRect is not working.
Tested it with many code variations but no rectangle nomatter small or large, overlapping or not, could be copied.
This code supposedly copies the "Hello world!" phrase on STemWin hello world example application but it is not doing anything at all..
Can someone tell me please how can we make the GUI_CopyRect work properly?