指向API的函数指针定义方法

指向API的函数指针定义方法

typedef NTSTATUS ( __stdcall *ZWQUERYSYSTEMINFORMATION ) ( 
    IN SYSTEM_INFORMATION_CLASS SystemInformationClass, 
    IN OUT PVOID SystemInformation, 
    IN ULONG SystemInformationLength, 
    OUT PULONG ReturnLength OPTIONAL 
    );