The Conroy & Conroy Subroutine Library (2021.3 edition)

TValidator
What: class
Ancestor: TCommon_COM_Interface
File:
Layer: 1
Platforms: C++, Pascal (Object)

This is an abstract base class for validation. It contains the following method, which uses the stdcall calling convention:

Date_TeValidate_Longintxt_Presentation_Manager
char* Validate_Longint( int32 Item, int32 Value )
function Validate_Longint( Item, Value : longint ) : PChar
Validate the passed value for the indicated item. If valid, returns nil or null string. If an error, returns a PChar starting with "?". If a warning, returns a PChar that doesn't start with "?".