DDX_LBIndex

  • Article

 

The DDX_LBIndex function manages the transfer of int data between a list box control in a dialog box, form view, or control view object and an int data member of the dialog box, form view, or control view object.

Syntax

      void AFXAPI DDX_LBIndex(
   CDataExchange* pDX,
   int nIDC,
   int& index 
);

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 resource ID of the list box control associated with the control property.

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

Remarks

When DDX_LBIndex is called, index is set to the index of the current list box selection. If no item is selected, index is set to -1.

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

Requirements

Header: afxdd_.h

See Also

Standard Dialog Data Exchange Routines
MFC Macros and Globals
DDP_LBIndex