Introduction - If you have any usage issues, please Google them yourself
qt shielding Alt+ F4 code. The main principle of overloading closeEvent
Packet : 117143196block_alt_f4.zip filelist
block_alt_f4/
block_alt_f4/alt_f4.pro
block_alt_f4/main.cpp
block_alt_f4/mainwindow.cpp
block_alt_f4/mainwindow.h