COleCurrency Class

發行項
04/28/2015

Encapsulates the CURRENCY data type of OLE automation.

class COleCurrency

Members

Public Constructors

Name	Description
COleCurrency::COleCurrency	Constructs a COleCurrency object.

Public Methods

Name	Description
COleCurrency::Format	Generates a formatted string representation of a COleCurrency object.
COleCurrency::GetStatus	Gets the status (validity) of this COleCurrency object.
COleCurrency::ParseCurrency	Reads a CURRENCY value from a string and sets the value of COleCurrency.
COleCurrency::SetCurrency	Sets the value of this COleCurrency object.
COleCurrency::SetStatus	Sets the status (validity) for this COleCurrency object.

Public Operators

Name	Description
operator =	Copies a COleCurrency value.
operator +, -	Adds, subtracts, and changes sign of COleCurrency values.
operator +=, -=	Adds and subtracts a COleCurrency value from this COleCurrency object.
operator *, /	Scales a COleCurrency value by an integer value.
operator *=, /=	Scales this COleCurrency value by an integer value.
operator <<	Outputs a COleCurrency value to CArchive or CDumpContext.
operator >>	Inputs a COleCurrency object from CArchive.
operator CURRENCY	Converts a COleCurrency value into a CURRENCY.
operator ==, <, <=, etc.	Compares two COleCurrency values.

Public Data Members

Name	Description
COleCurrency::m_cur	Contains the underlying CURRENCY for this COleCurrency object.
COleCurrency::m_status	Contains the status of this COleCurrency object.

Remarks

COleCurrency does not have a base class.

CURRENCY is implemented as an 8-byte, two's-complement integer value scaled by 10,000. This gives a fixed-point number with 15 digits to the left of the decimal point and 4 digits to the right. The CURRENCY data type is extremely useful for calculations involving money, or for any fixed-point calculation where accuracy is important. It is one of the possible types for the VARIANT data type of OLE automation.

COleCurrency also implements some basic arithmetic operations for this fixed-point type. The supported operations have been selected to control the rounding errors which occur during fixed-point calculations.

Inheritance Hierarchy

COleCurrency

Requirements

Header: afxdisp.h

共用方式為