Document on modifying vnc from TCP to UDP (1)

Today, I tried to use enet to rewrite the vnc server so that its transmission protocol was changed from the original TCP protocol to the UDP protocol.
There is no problem with compilation, but the problem occurs again during link, as shown below:
Host. obj: error LNK2019: external symbol that cannot be parsed _ imp _ htonl @ 4, which is referenced in function _ enet_host_connect
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ setsockopt @ 20, which is referenced in function _ enet_socket_create
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ ioctlsocket @ 12, which is referenced in function _ enet_socket_create
.................
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ WSARecvFrom @ 36, which is referenced in function _ enet_socket_receive
Win32.obj: error LNK2019: external symbol that cannot be parsed ___ WSAFDIsSet @ 8, which is referenced in function _ enet_socket_wait
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ select @ 20, which is referenced in function _ enet_socket_wait
. \ Release \ enet. dll: fatal error LNK1120: 26 External commands that cannot be parsed
The generated logs are stored in "file: // c: \ Documents ents and Settings \ juwen \ Desktop \ UltraVNC \ winvnc \ enet \ Release \ BuildLog.htm"
Enet-33 errors and 0 warnings
------ Generation started: Project: authSSP, configuration: Release Win32 ------
Create Buildtime for VERSIONINFO
Buildtime. in
Compiling resources...
Linking...
Creating library. \ .. \ Release/authSSP. lib and object. \ .. \ Release/authSSP. exp
Embedding the list...
The generated logs are stored in "file: // c: \ Documents ents and Settings \ juwen \ Desktop \ UltraVNC \ winvnc \ Release \ BuildLog.htm"
AuthSSP-0 errors and 0 warnings
------ Generated: Project: winvnc, configuration: Release Win32 ------
Executing the pre-link event...
Buildtime. cpp
Linking...
Enet. lib (win32.obj): error LNK2019: the external symbol _ imp _ WSASendTo @ 36 that cannot be parsed. This symbol is referenced in function _ enet_socket_send.
Enet. lib (win32.obj): error LNK2019: the external symbol _ imp _ WSARecvFrom @ 36 that cannot be parsed. This symbol is referenced in function _ enet_socket_receive.
. \ .. \ Release/winvnc.exe: fatal error LNK1120: 2 external commands that cannot be parsed

Among them, _ imq _ WSASendTo @ 36 is caused by the absence of library files to be loaded. The solution can be found inAdd to file
# I nclude <winsock2.h>
# Pragma comment (lib, "ws2_32.lib ")
Or
Project-> Settings-> Link tag-> Object/Library Moduls: Add ws2_32.lib

The problem is solved after adding. The error is as follows:
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ timeBeginPeriod @ 4, which is referenced in function _ enet_initialize
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ timeEndPeriod @ 4, which is referenced in function _ enet_deinitialize
Win32.obj: error LNK2019: external symbol that cannot be parsed _ imp _ timeGetTime @ 0, which is referenced in function _ enet_time_get
. \ Release \ enet. dll: fatal error LNK1120: 3 External commands that cannot be parsed

As long as it is a problem with several time functions, I guess I need to add another library. I found it online. As expected, I added it to the file.
# Pragma comment (lib, "winmm ")
Or
Project-> Settings-> Link tag-> Object/Library Moduls: Add winmm. lib

OK. It took a long time to solve a simple problem! Depressed!