how to do coding (while and if)

[asdfgqwert]

Header definition
extern "C" __declspec(dllexport) int _stdcall A( void );
extern "C" __declspec(dllexport) int _stdcall Reset( void )

Loop execution: if "A event" is triggered,"Hang A" right away,

Execute Reset until the Reset event "returns 0" is normal, and then release the suspended A to execute the A event,

How to execute in the background ??

[kbw]

What do you mean by background?

What do you mean by "Hang A"?