Pointer to a Details View comparison function.
This function would be used if you wanted to sort on a non-standard data type or if you wanted to a custom sort.
typedef FNCOMPARE *PFNCOMPARE;
In the header file, this is a two-part definition as shown below:
typedef LONG (EXPENTRY FNCOMPARE)(PVOID, PVOID); typedef FNCOMPARE *PFNCOMPARE;
The first argument (PVOID) is a pointer to the Details View field value. The second argument (PVOID) is a pointer to the value it is to be compared with. The function returns a LONG value that must be one of the following:
CMP_EQUAL