PX_Long

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Call this function within your control's DoPropExchange member function to serialize or initialize a property of type long.

BOOL PX_Long(
   CPropExchange* pPX,
   LPCTSTR pszPropName,
   long& lValue 
);
BOOL PX_Long(
   CPropExchange* pPX,
   LPCTSTR pszPropName,
   long& lValue,
   long lDefault 
);

Parameters

  • pPX
    Pointer to the CPropExchange object (typically passed as a parameter to DoPropExchange).

  • pszPropName
    The name of the property being exchanged.

  • lValue
    Reference to the variable where the property is stored (typically a member variable of your class).

  • lDefault
    Default value for the property.

Return Value

Nonzero if the exchange was successful; 0 if unsuccessful.

Remarks

The property's value is read from or written to the variable referenced by lValue, as appropriate. If lDefault is specified, it will be used as the property's default value. This value is used if, for any reason, the control's serialization process fails.

Requirements

Header: afxctl.h

See Also

Concepts

MFC Macros and Globals

COleControl::DoPropExchange