wxWidgets: wxVariantDataErrorCode Class Reference

| Version: 3.0.5

Public Member Functions | List of all members
wxVariantDataErrorCode Class Reference
Class List by Category » Data Structures

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Inheritance diagram for wxVariantDataErrorCode:
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## Detailed Description

This class represents a thin wrapper for Microsoft Windows SCODE type (which is the same as HRESULT).

It is used for converting between a wxVariant and OLE VARIANT with type set to VT_ERROR. When wxVariant stores wxVariantDataErrorCode, it returns "errorcode" as its type. This class can be used for returning error codes of automation calls or exchanging values with other applications: e.g. Microsoft Excel returns VARIANTs with VT_ERROR type for cell values with errors (one of XlCVError constants, displayed as e.g. "#DIV/0!" or "#REF!" there) etc. See wxVariantDataCurrency for an example of how to exchange values between wxVariant and a native type not directly supported by it.

Availability: only available for the wxMSW port.

Since
  2.9.5

##

Library: wxCore

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See also
  wxAutomationObject, wxVariant, wxVariantData, wxVariantDataCurrency

Include file:

    #include <wx/msw/ole/oleutils.h>

## Public Member Functions
| wxVariantDataErrorCode (SCODE value=S_OK)
| Constructor initializes the object to value or S_OK if no value was passed. More...
SCODE | GetValue () const
| Returns the stored SCODE value. More...
void | SetValue (SCODE value)
| Set the stored value to value. More...
virtual bool | Eq (wxVariantData &data) const
| Returns true if data is of wxVariantDataErrorCode type and contains the same SCODE value. More...
virtual bool | Write (wxString &str) const
| Fills the provided string with the textual representation of this object. More...
wxVariantData * | Clone () const
| Returns a copy of itself. More...
virtual wxString | GetType () const
| Returns "errorcode". More...
virtual bool | GetAsAny (wxAny *any) const
| Converts the value of this object to wxAny. More...
Public Member Functions inherited from wxVariantData
| wxVariantData ()
| Default constructor. More...
void | DecRef ()
| Decreases reference count. More...
virtual bool | GetAny (wxAny *any) const
| Converts value to wxAny, if possible. More...
virtual wxClassInfo * | GetValueClassInfo ()
| If the data is a wxObject returns a pointer to the objects wxClassInfo structure, if the data isn't a wxObject the method returns NULL. More...
void | IncRef ()
| Increases reference count. More...
virtual bool | Read (istream &stream)
| Reads the data from stream. More...
virtual bool | Read (wxString &string)
| Reads the data from string. More...
virtual bool | Write (ostream &stream) const
| Writes the data to stream. More...

## Constructor & Destructor Documentation

## ◆ wxVariantDataErrorCode()

wxVariantDataErrorCode::wxVariantDataErrorCode | ( | SCODE | value = `S_OK` | ) |

Constructor initializes the object to value or S_OK if no value was passed.

## Member Function Documentation

## ◆ Clone()

wxVariantData* wxVariantDataErrorCode::Clone | ( |  | ) | const
| virtual

Returns a copy of itself.

Reimplemented from wxVariantData.

## ◆ Eq()

virtual bool wxVariantDataErrorCode::Eq | ( | wxVariantData & | data | ) | const
| virtual

Returns true if data is of wxVariantDataErrorCode type and contains the same SCODE value.

Implements wxVariantData.

## ◆ GetAsAny()

virtual bool wxVariantDataErrorCode::GetAsAny | ( | wxAny * | any | ) | const
| virtual

Converts the value of this object to wxAny.

## ◆ GetType()

virtual wxString wxVariantDataErrorCode::GetType | ( |  | ) | const
| inlinevirtual

Returns "errorcode".

Implements wxVariantData.

## ◆ GetValue()

SCODE wxVariantDataErrorCode::GetValue | ( |  | ) | const

Returns the stored SCODE value.

## ◆ SetValue()

void wxVariantDataErrorCode::SetValue | ( | SCODE | value | ) |

Set the stored value to value.

## ◆ Write()

virtual bool wxVariantDataErrorCode::Write | ( | wxString & | str | ) | const
| virtual

Fills the provided string with the textual representation of this object.

The error code is just a number, so it's output as such.

Reimplemented from wxVariantData.