Bde.DBTables.TBDEDataSet.ConstraintCallBack

From RAD Studio API Documentation
Jump to: navigation, search

Delphi

function ConstraintCallBack(Req: DsInfoReq; var ADataSources: DataSources): DBIResult; stdcall;

C++

System::Word __stdcall ConstraintCallBack(Bde::DsInfoReq Req, Bde::DataSources &ADataSources);

Properties

Type Visibility Source Unit Parent
function public
Bde.DBTables.pas
Bde.DBTables.hpp
Bde.DBTables TBDEDataSet

Description

Specifies the callback function that allows the dataset to communicate with the BDE constraint layer.

Use the address of ConstraintCallBack as a parameter when making direct API calls to Borland Database Engine (BDE) functions that require a callback to provide information about the constraints on the dataset or its fields.

See Also