When a user changes a numeric control radix, LabWindows/CVI generates an EVENT_RADIX_CHANGE event and sends the event to the control callback function.
eventData1 = The new format of the radix(VAL_DECIMAL_FORMAT, VAL_HEX_FORMAT, VAL_OCTAL_FORMAT, or VAL_BINARY_FORMAT). Provide an attribute to set the radix from source code.