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PX_Double

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

BOOL PX_Double( 
   CPropExchange* pPX, 
   LPCTSTR pszPropName, 
   double& doubleValue  
); 
BOOL PX_Double( 
   CPropExchange* pPX, 
   LPCTSTR pszPropName, 
   double& doubleValue, 
   double doubleDefault  
);

Parameters

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

  • pszPropName
    The name of the property being exchanged.

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

  • doubleDefault
    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 doubleValue, as appropriate. If doubleDefault 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

Reference

COleControl::DoPropExchange

PX_Float

PX_Short