class WXDLLIMPEXP_FWD_BASE wxDateTime;
class WXDLLIMPEXP_FWD_BASE wxTimeSpan;
class WXDLLIMPEXP_FWD_BASE wxDateSpan;
class WXDLLIMPEXP_FWD_BASE wxDateTime;
class WXDLLIMPEXP_FWD_BASE wxTimeSpan;
class WXDLLIMPEXP_FWD_BASE wxDateSpan;
// same as above but only take date part into account, time is always zero
wxDateTime& SetFromMSWSysDate(const struct _SYSTEMTIME& st);
void GetAsMSWSysDate(struct _SYSTEMTIME* st) const;
// same as above but only take date part into account, time is always zero
wxDateTime& SetFromMSWSysDate(const struct _SYSTEMTIME& st);
void GetAsMSWSysDate(struct _SYSTEMTIME* st) const;
// comparison (see also functions below for operator versions)
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// comparison (see also functions below for operator versions)
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