com+ dll and write to event viewer

[wanttolearn1]

i want to write to event viewer

oid EventLogCls::WriteError( char* msg) {
			HANDLE hes = RegisterEventSource(0, appName);
			if(hes) {
				WORD dwEventType =  EVENTLOG_ERROR_TYPE;
				ReportEvent(hes, dwEventType, 0, 0, 0, 1, 0,(const char**)&msg , 0);
				DeregisterEventSource(hes);
			}
		}

the error that i get is on the line of "ReportEvent"

error C2664: 'ReportEventW' : cannot convert parameter 8 from 'const char **' to 'LPCWSTR *'

what should be changed?

[Igor Vartanov]

LPCWSTR is constant wide string. So you have to convert your msg to wide string and pass the latter to ReportEvent. Or explicitly specify ReportEventA.

[2kaud]

Are you compiling as ASCII or UNICODE? That parameter of reportevent() is typed as LPCTSTR* so if you are compiling as ASCII it should compile as LPCSTR * which is consistent with how you are trying to use it. As it thinks it should be a LPCWSTR* it looks like you are compiling as UNICODE. In which case, why are using char * as the argument for WriteError() and not LPCTSTR? which would make converting ascii to wide not required or don't need to explicity specify ReportEventA() as suggested by Igor in post #2.

[wanttolearn1]

yes i compile as unicode. thanks both of you.
one more question :
when i try to debug i get error that
BSTR* message; //used to accept return value from server.
message is not initialized.
but when i am in release mode i don't get into this error.
what the correct way to init this type?