Visual Studio .NET 2003
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 );
- A pointer to a CDataExchange object. The framework supplies this object to establish the context of the data exchange, including its direction.
- A reference to a member variable of the dialog box, form view, or control view object with which data is validated.
- Maximum number of characters allowed.
For more information about DDV, see Dialog Data Exchange and Validation.