C Struct

[Jodi999]

Has anyone ever seen a C struct like the following:

typedef struct {
UINT32 process_id;
UINT32 sig_num;
void(*callback)(int device_num);
} UDM_NOTIFY;

I don't understand that the 'void...' line is.

Thanks for any help.

 

[chipperMDW]

It has nothing to do with the struct.

It's a variable named "callback". Its type is "pointer to a function with a single int parameter and a void return type".

Yes, the syntax is confusing; try deciphering a pointer to a function that takes a pointer to a function :-D