A variant's value can be changed at run time, possibly to a different type of value.
As standard, wxVariant can store values of type bool, char, double, long, string,
-string list, time, date, void pointer, list of strings, and list of variants. However, an application can extend
-wxVariant's capabilities by deriving from the class \helpref{wxVariantData}{wxvariantdata} and
-using the wxVariantData form of the wxVariant constructor or assignment operator
-to assign this data to a variant. Actual values for user-defined types will need to be accessed
-via the wxVariantData object, unlike the case for basic data types where convenience
-functions such as GetLong can be used.
+string list, time, date, void pointer, list of strings, and list of variants. However, an application can extend wxVariant's capabilities by deriving from the class \helpref{wxVariantData}{wxvariantdata} and using the wxVariantData form of the wxVariant constructor or assignment operator to assign this data to a variant. Actual values for user-defined types will need to be accessed via the wxVariantData object, unlike the case for basic data types where convenience functions such as GetLong can be used.
This class is useful for reducing the programming for certain tasks, such as an editor
for different data types, or a remote procedure call protocol.
\func{}{wxVariant}{\param{wxVariantData*}{ data}, \param{const wxString\& }{name = ``"}}
-Construction from user-defined data. The variant holds on to the {\it data} pointer.
+Construction from user-defined data. The variant holds onto the {\it data} pointer.
+
+\func{}{wxVariant}{\param{wxDateTime\&}{ val}, \param{const wxString\& }{name = ``"}}
+
+Construction from a \helpref{wxDateTime}{wxdatetime}.
+
+\func{}{wxVariant}{\param{wxArrayString\&}{ val}, \param{const wxString\& }{name = ``"}}
+
+Construction from an array of strings. This constructor copies {\it value} and its contents.
+
+\func{}{wxVariant}{\param{DATE\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
+
+Construction from a odbc date value. Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
+
+\func{}{wxVariant}{\param{TIME\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
+
+Construction from a odbc time value. Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
+
+\func{}{wxVariant}{\param{TIMESTAMP\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
+
+Construction from a odbc timestamp value. Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
\membersection{wxVariant::\destruct{wxVariant}}\label{wxvariantdtor}
Destructor.
+
\membersection{wxVariant::Append}\label{wxvariantappend}
\func{void}{Append}{\param{const wxVariant\&}{ value}}
Deletes the contents of the list.
+
+\membersection{wxVariant::Convert}\label{wxvariantconvert}
+
+\constfunc{bool}{Convert}{long* value}
+
+\constfunc{bool}{Convert}{bool* value}
+
+\constfunc{bool}{Convert}{double* value}
+
+\constfunc{bool}{Convert}{wxString* value}
+
+\constfunc{bool}{Convert}{char* value}
+
+\constfunc{bool}{Convert}{wxDateTime* value}
+
+Retrieves and converts the value of this variant to the type that {\it value} is.
+
+
\membersection{wxVariant::GetCount}\label{wxvariantgetcount}
\constfunc{int}{GetCount}{\void}
Deletes the zero-based {\it item} from the list.
+\membersection{wxVariant::GetArrayString}\label{wxvariantgetarraystring}
+
+\constfunc{wxArrayString}{GetArrayString}{\void}
+
+Returns the string array value.
+
\membersection{wxVariant::GetBool}\label{wxvariantgetbool}
\constfunc{bool}{GetBool}{\void}
Returns a pointer to the internal variant data.
+\membersection{wxVariant::GetDateTime}\label{wxvariantgetdatetime}
+
+\constfunc{wxDateTime}{GetDateTime}{\void}
+
+Returns the date value.
+
\membersection{wxVariant::GetDouble}\label{wxvariantgetdouble}
\constfunc{double}{GetDouble}{\void}
\func{void}{operator $=$}{\param{const wxStringList\& }{value}}
+\func{void}{operator $=$}{\param{const wxDateTime\& }{value}}
+
+\func{void}{operator $=$}{\param{const wxArrayString\& }{value}}
+
+\func{void}{operator $=$}{\param{const DATE\_STRUCT* }{value}}
+
+\func{void}{operator $=$}{\param{const TIME\_STRUCT* }{value}}
+
+\func{void}{operator $=$}{\param{const TIMESTAMP\_STRUCT* }{value}}
+
Assignment operators.
\membersection{wxVariant::operator $==$}\label{wxvarianteq}
-\func{bool}{operator $==$}{\param{const wxVariant\& }{value}}
+\constfunc{bool}{operator $==$}{\param{const wxVariant\& }{value}}
+
+\constfunc{bool}{operator $==$}{\param{const wxString\& }{value}}
-\func{bool}{operator $==$}{\param{const wxString\& }{value}}
+\constfunc{bool}{operator $==$}{\param{const char* }{value}}
-\func{bool}{operator $==$}{\param{const char* }{value}}
+\constfunc{bool}{operator $==$}{\param{char }{value}}
-\func{bool}{operator $==$}{\param{char }{value}}
+\constfunc{bool}{operator $==$}{\param{const long }{value}}
-\func{bool}{operator $==$}{\param{const long }{value}}
+\constfunc{bool}{operator $==$}{\param{const bool }{value}}
-\func{bool}{operator $==$}{\param{const bool }{value}}
+\constfunc{bool}{operator $==$}{\param{const double }{value}}
-\func{bool}{operator $==$}{\param{const double }{value}}
+\constfunc{bool}{operator $==$}{\param{void* }{value}}
-\func{bool}{operator $==$}{\param{void* }{value}}
+\constfunc{bool}{operator $==$}{\param{const wxList\& }{value}}
-\func{bool}{operator $==$}{\param{const wxList\& }{value}}
+\constfunc{bool}{operator $==$}{\param{const wxStringList\& }{value}}
-\func{bool}{operator $==$}{\param{const wxStringList\& }{value}}
+\constfunc{bool}{operator $==$}{\param{const wxArrayString\& }{value}}
+
+\constfunc{bool}{operator $==$}{\param{const wxDateTime\& }{value}}
Equality test operators.
\membersection{wxVariant::operator $!=$}\label{wxvariantneq}
-\func{bool}{operator $!=$}{\param{const wxVariant\& }{value}}
+\constfunc{bool}{operator $!=$}{\param{const wxVariant\& }{value}}
+
+\constfunc{bool}{operator $!=$}{\param{const wxString\& }{value}}
-\func{bool}{operator $!=$}{\param{const wxString\& }{value}}
+\constfunc{bool}{operator $!=$}{\param{const char* }{value}}
-\func{bool}{operator $!=$}{\param{const char* }{value}}
+\constfunc{bool}{operator $!=$}{\param{char }{value}}
-\func{bool}{operator $!=$}{\param{char }{value}}
+\constfunc{bool}{operator $!=$}{\param{const long }{value}}
-\func{bool}{operator $!=$}{\param{const long }{value}}
+\constfunc{bool}{operator $!=$}{\param{const bool }{value}}
-\func{bool}{operator $!=$}{\param{const bool }{value}}
+\constfunc{bool}{operator $!=$}{\param{const double }{value}}
-\func{bool}{operator $!=$}{\param{const double }{value}}
+\constfunc{bool}{operator $!=$}{\param{void* }{value}}
-\func{bool}{operator $!=$}{\param{void* }{value}}
+\constfunc{bool}{operator $!=$}{\param{const wxList\& }{value}}
-\func{bool}{operator $!=$}{\param{const wxList\& }{value}}
+\constfunc{bool}{operator $!=$}{\param{const wxStringList\& }{value}}
-\func{bool}{operator $!=$}{\param{const wxStringList\& }{value}}
+\constfunc{bool}{operator $!=$}{\param{const wxArrayString\& }{value}}
+
+\constfunc{bool}{operator $!=$}{\param{const wxDateTime\& }{value}}
Inequality test operators.
Operator for implicit conversion to a pointer to a void, using \helpref{wxVariant::GetVoidPtr}{wxvariantgetvoidptr}.
+\membersection{wxVariant::operator wxDateTime}\label{wxvariantdatetime}
+
+\constfunc{void*}{operator wxDateTime}{\void}
+
+Operator for implicit conversion to a pointer to a \helpref{wxDateTime}{wxdatetime}, using \helpref{wxVariant::GetDateTime}{wxvariantgetdatetime}.
+
\section{\class{wxVariantData}}\label{wxvariantdata}
The {\bf wxVariantData} is used to implement a new type for wxVariant. Derive from wxVariantData,
wxVariant(void* ptr, const wxString& name = wxEmptyString); // void* (general purpose)
wxVariant(wxObject* ptr, const wxString& name = wxEmptyString); //wxObject
wxVariant(wxVariantData* data, const wxString& name = wxEmptyString); // User-defined data
-//TODO: Need to document
#if wxUSE_DATETIME
wxVariant(const wxDateTime& val, const wxString& name = wxEmptyString); // Date
#endif // wxUSE_DATETIME
wxVariant(const TIME_STRUCT* valptr, const wxString& name = wxEmptyString); // DateTime
wxVariant(const TIMESTAMP_STRUCT* valptr, const wxString& name = wxEmptyString); // DateTime
#endif
-//TODO: End of Need to document
wxVariant(const wxVariant& variant);
~wxVariant();
// Assignment
void operator= (const wxVariant& variant);
-//TODO: Need to document
#if wxUSE_DATETIME
bool operator== (const wxDateTime& value) const;
bool operator!= (const wxDateTime& value) const;
void operator= (const TIME_STRUCT* value) ;
void operator= (const TIMESTAMP_STRUCT* value) ;
#endif
-//TODO: End of Need to document
// Assignment using data, e.g.
// myVariant = new wxStringVariantData("hello");
// No implicit conversion to wxObject, as that would really
// confuse people between conversion to our contained data
// and downcasting to see our base type.
-//TODO: Need to document
#if wxUSE_DATETIME
inline operator wxDateTime () const { return GetDateTime(); }
#endif // wxUSE_DATETIME
-//TODO: End of Need to document
// Accessors
// Sets/gets name
void* GetVoidPtr() const ;
wxObject* GetWxObjectPtr() ;
-//TODO: Need to document
#if wxUSE_DATETIME
wxDateTime GetDateTime() const ;
#endif // wxUSE_DATETIME
wxArrayString GetArrayString() const;
-//TODO: End of Need to document
// Operations
// Make NULL (i.e. delete the data)
bool Convert(double* value) const;
bool Convert(wxString* value) const;
bool Convert(char* value) const;
-//TODO: Need to document
#if wxUSE_DATETIME
bool Convert(wxDateTime* value) const;
#endif // wxUSE_DATETIME
-//TODO: End of Need to document
// Attributes
protected: