Returns the size of the user-settable packet filtering program in bytes.

Syntax:

DWORD __stdcall BpfGetProgrammSize(HANDLE hFtr);

Parameters:

hFtr

[in] HNUserFilter object handle.

Return values:

If the function succeeds the return value will be the size of the user-settable packet filtering program in bytes, otherwise it returns -1.

Description:

When you create the user-settable packet filtering program, HNUserFilter object allocates memory for the HN_BPF_PROGRAMM structure.

Use BpfGetProgrammSize to obtain the user-settable packet filtering program size.