Intermittent access to the external network in QT (keep 3G network card online)

In Qt, in order to realize the 3G network card is not connected to the network will be dropped, so timed access to the external network (ping).

The Sysytem method is called, and the Black console window is called, which is not an ideal effect.

The final way:

Header file contains # include <windows.h>

ShellExecute (NULL, L "open", L "Ping.exe", L "www.baidu.com", null, sw_hide);

The final parameter sw_hide is hidden execution, which is the desired effect.

If you change to Sw_show, you will have the same effect as system ("Ping www.baidu.com").

Intermittent access to the external network in QT (keep 3G network card online)