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DDX_OCFloatRO

  • Article

The DDX_OCFloatRO function manages the transfer of float (or double) data between a read-only property of an OLE control in a dialog box, form view, or control view object and a float (or double) data member of the dialog box, form view, or control view object.

void AFXAPI DDX_OCFloatRO( 
   CDataExchange* pDX, 
   int nIDC, 
   DISPID dispid, 
   float& value  
); 
void AFXAPI DDX_OCFloatRO( 
   CDataExchange* pDX, 
   int nIDC, 
   DISPID dispid, 
   double& value  
);

Parameters

  • pDX
    A pointer to a CDataExchange object. The framework supplies this object to establish the context of the data exchange, including its direction.

  • nIDC
    The ID of an OLE control in the dialog box, form view, or control view object.

  • dispid
    The dispatch ID of a property of the control.

  • value
    A reference to a member variable of the dialog box, form view or control view object with which data is exchanged.

Remarks

For more information about DDX, see Dialog Data Exchange and Validation.

Requirements

Header: afxdisp.h

See Also

Reference

DDX_OCFloat

Concepts

MFC Macros and Globals