void AFXAPI DDV_MinMaxDouble( CDataExchange* pDX, double const& value, double minVal, double maxVal );
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.
minVal
Minimum value (of type double) allowed.
maxVal
Maximum value (of type double) allowed.
Remarks
Call DDV_MinMaxDouble to verify that the value in the control associated with value falls between minVal and maxVal.
For more information about DDV, see Adding a Dialog Box in Visual C++ Tutorials and Dialog Data Exchange and Validation in Visual C++ Programmer’s Guide.