COleVariant::COleVariant

Constructs a COleVariant object.

COleVariant( ); 
COleVariant(
   const VARIANT& varSrc 
);
COleVariant(
   const COleVariant& varSrc 
);
COleVariant(
   LPCVARIANT pSrc 
);
COleVariant(
   LPCTSTR lpszSrc 
);
COleVariant(
   LPCTSTR lpszSrc,
   VARTYPE vtSrc 
);
COleVariant(
   CString& strSrc 
);
COleVariant(
   BYTE nSrc 
);
COleVariant(
   short nSrc,
   VARTYPE vtSrc = VT_I2 
);
COleVariant(
   long lSrc,
   VARTYPE vtSrc = VT_I4 
);
COleVariant(
   const COleCurrency& curSrc 
);
COleVariant(
   float fltSrc 
);
COleVariant(
   double dblSrc 
);
COleVariant(
   const COleDateTime& timeSrc 
);
COleVariant(
   const CByteArray& arrSrc 
);
COleVariant(
   const CLongBinary& lbSrc 
);
COleVariant(
   LPCITEMIDLIST pidl
);

Parameters

  • varSrc
    An existing COleVariant or VARIANT object to be copied into the new COleVariant object.

  • pSrc
    A pointer to a VARIANT object that will be copied into the new COleVariant object.

  • lpszSrc
    A null-terminated string to be copied into the new COleVariant object.

  • vtSrc
    The VARTYPE for the new COleVariant object.

  • strSrc
    A CString object to be copied into the new COleVariant object.

  • nSrc, lSrc
    A numerical value to be copied into the new COleVariant object.

  • vtSrc
    The VARTYPE for the new COleVariant object.

  • curSrc
    A COleCurrency object to be copied into the new COleVariant object.

  • fltSrc, dblSrc
    A numerical value to be copied into the new COleVariant object.

  • timeSrc
    A COleDateTime object to be copied into the new COleVariant object.

  • arrSrc
    A CByteArray object to be copied into the new COleVariant object.

  • lbSrc
    A CLongBinary object to be copied into the new COleVariant object.

  • pidl
    A pointer to a ITEMIDLIST structure to be copied into the new COleVariant object.

Remarks

All these constructors create new COleVariant objects initialized to the specified value. A brief description of each of these constructors follows.

  • COleVariant( )   Creates an empty COleVariant object, VT_EMPTY.

  • COleVariant( varSrc )   Copies an existing VARIANT or COleVariant object. The variant type is retained.

  • COleVariant( pSrc )   Copies an existing VARIANT or COleVariant object. The variant type is retained.

  • COleVariant( lpszSrc )   Copies a string into the new object, VT_BSTR (UNICODE).

  • COleVariant( lpszSrc**,** vtSrc )   Copies a string into the new object. The parameter vtSrc must be VT_BSTR (UNICODE) or VT_BSTRT (ANSI).

  • COleVariant( strSrc )   Copies a string into the new object, VT_BSTR (UNICODE).

  • COleVariant( nSrc )   Copies an 8-bit integer into the new object, VT_UI1.

  • COleVariant( nSrc**,** vtSrc )   Copies a 16-bit integer (or Boolean value) into the new object. The parameter vtSrc must be VT_I2 or VT_BOOL.

  • COleVariant( lSrc**,** vtSrc )   Copies a 32-bit integer (or SCODE value) into the new object. The parameter vtSrc must be VT_I4, VT_ERROR, or VT_BOOL.

  • COleVariant( curSrc )   Copies a COleCurrency value into the new object, VT_CY.

  • COleVariant( fltSrc )   Copies a 32-bit floating-point value into the new object, VT_R4.

  • COleVariant( dblSrc )   Copies a 64-bit floating-point value into the new object, VT_R8.

  • COleVariant( timeSrc )   Copies a COleDateTime value into the new object, VT_DATE.

  • COleVariant( arrSrc )   Copies a CByteArray object into the new object, VT_EMPTY.

  • COleVariant( lbSrc )   Copies a CLongBinary object into the new object, VT_EMPTY.

For more information, see the VARIANT and VARTYPE entries in the Windows SDK.

For more information on SCODE, see Structure of COM Error Codes in the Windows SDK.

Requirements

Header: afxdisp.h

See Also

Concepts

COleVariant Class

COleVariant Members

Hierarchy Chart

COleVariant::operator =

CStringT Class

COleCurrency Class

COleDateTime Class

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