DDV_MaxChars

Call DDV_MaxChars to verify that the amount of characters in the control associated with value does not exceed nChars.

void AFXAPI DDV_MaxChars( 
   CDataExchange* pDX, 
   CString const& value, 
   int nChars  
);

Parameters

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

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

• nChars
  Maximum number of characters allowed.

Remarks

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

Requirements

Header: afxdd_.h

See Also

Concepts

MFC Macros and Globals

Other Resources

Standard Dialog Data Validation Routines