1. Registry functions
The set of functions are changed to consistently use bool arguments.
The macros are changed to inline functions to improve type checking.
RegSaveValue() are overloaded with help of templates to reduce
typecasting at call sites. For instance, bool value would be converted
consistently instead of relying on call sites to convert bool to int values.
2. Memory functions
BOOL usages were unnecessary. Mostly internal usages which can simply be bool.
3. FrameBase
Some member variables are changed to bool.
BOOL was used because of those Registry functions.
Additional changes:
- Some expressions are forced to be bool when assigning to bool variables.
Uthernet II: add extended feature to virtualise DNS requests.
. This allows pure TCP/UDP sockets to run *without* MACRAW requests (and so without libpcap).
. Raw sockets will not work.
. Add configuration for Virtual DNS.
libpcap: ensure all functions check if the library is loaded before using it.
Uthernet 1: do NOT overwrite tfe_cannot_use as it should only reflect the availability of npcap on *this* system.
Add Copyright notice, and mention Virtual DNS in html.
. tfe.cpp renamed to Uthernet1.cpp.
. add class NetworkBackend: common to both U1 and U2 cards, and abstracts Windows/Linux backends.
. modernise error message if WPCAP.DLL is not installed.