+ int day = hti.st.wDayOfWeek;
+
+ // the native control returns incorrect day of the week when
+ // the first day isn't Monday, i.e. the first column is always
+ // "Monday" even if its label is "Sunday", compensate for it
+ const int first = LOWORD(MonthCal_GetFirstDayOfWeek(GetHwnd()));
+ if ( first == MonthCal_Monday )
+ {
+ // as MonthCal_Monday is 0 while wxDateTime::Mon is 1,
+ // normally we need to do this to transform from MSW
+ // convention to wx one
+ day++;
+ day %= 7;
+ }
+ //else: but when the first day is MonthCal_Sunday, the native
+ // control still returns 0 (i.e. MonthCal_Monday) for the
+ // first column which looks like a bug in it but to work
+ // around it it's enough to not apply the correction above
+
+ *wd = static_cast<wxDateTime::WeekDay>(day);