Logging logs in Windows

[Alexander Zhirov]

On Saturday, 4 February 2023 at 14:48:55 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
> I.e. here are my functions for syslog and Windows Event log (I 
> won't copy it all, it won't be helpful & the file log function 
> is giant compared).
>
> ```d
>             void syslog() {
>                 version (Posix) {
>                     import core.sys.posix.syslog : syslog;
>
>                     syslog(prioritySyslogForLevels[level], 
> unsafeTextMessageComposite.ptr);
>                 }
>             }
>
>             void windowsEvents() {
>                 version (Windows) {
>                     import core.sys.windows.windows : 
> ReportEventA, WORD, DWORD, EVENTLOG_INFORMATION_TYPE,
>                         EVENTLOG_WARNING_TYPE, 
> EVENTLOG_ERROR_TYPE;
>
>                     static WORD[] WTypes = [
>                         EVENTLOG_INFORMATION_TYPE, 
> EVENTLOG_INFORMATION_TYPE, EVENTLOG_WARNING_TYPE,
>                         EVENTLOG_ERROR_TYPE, 
> EVENTLOG_ERROR_TYPE, EVENTLOG_ERROR_TYPE
>                     ];
>
>                     static DWORD[] dwEventID = [0, 0, 0, 0, 0, 
> 0];
>                     const(char)*[2] messages = [
>                         ModuleLine2.ptr,
>                         
> cast(char*)unsafeTextMessageComposite.ptr + 
> unsafeDateTime.length + ModuleLine.length
>                     ];
>
>                     ReportEventA(windowsEventHandle, 
> WTypes[level], 0, dwEventID[level], cast(void*)null, 2, 0,
>                             &messages[0], cast(void*)null);
>                 }
>             }
> ```
>
> Note: you also need to setup an event source on Windows i.e.
>
> ```d
> import core.sys.windows.windows : RegisterEventSourceA;
> windowsEventHandle = RegisterEventSourceA(null, 
> cast(char*)processName.ptr);
> ```
>
> and to close it:
>
> ```d
> import core.sys.windows.windows : DeregisterEventSource;
> DeregisterEventSource(windowsEventHandle);
> ```

I tried to make a simple recording, but when compiling, he swears 
at linking.

```d
import core.sys.windows.windows;

void writeToEventLog(LPCSTR pszSrcName, LPCSTR message) {
     HANDLE hEventLog = RegisterEventSourceA(NULL, pszSrcName);
     ReportEventA(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL, 1, 
0, &message, NULL);
     DeregisterEventSource(hEventLog);
}

void main() {
	writeToEventLog("test", "This is test message");
}
```

```ps
PS C:\sources\d-journals> dub
     Starting Performing "debug" build using 
C:\D\dmd2\windows\bin64\dmd.exe for x86_64.
     Building d-journals ~master: building configuration 
[application]
      Linking d-journals
lld-link: error: undefined symbol: RegisterEventSourceA
>>> referenced by C:\sources\d-journals\source\app.d:4
>>>               
>>> C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)

lld-link: error: undefined symbol: ReportEventA
>>> referenced by C:\sources\d-journals\source\app.d:5
>>>               
>>> C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)

lld-link: error: undefined symbol: DeregisterEventSource
>>> referenced by C:\sources\d-journals\source\app.d:6
>>>               
>>> C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)
Error: linker exited with status 1
Error C:\D\dmd2\windows\bin64\dmd.exe failed with exit code 1.
```

What could I have missed?