ITGIS_LayerVectorEvents.CursorBeforeFetchEvent method

DK for ActiveX | TatukGIS_XDK11.ITGIS_LayerVectorEvents.CursorBeforeFetchEvent | Methods

Fired before a cursor fetches shapes from the data source.

Available also on: Delphi | .NET | Java | Python.

// C#
public void CursorBeforeFetchEvent(
  int Cursor
);

' VisualBasic
Public Sub CursorBeforeFetchEvent(
  ByVal Cursor As Integer
)

// Oxygene
public
  procedure CursorBeforeFetchEvent(
    Cursor : Integer
  );

PURPOSE: Provides a hook before the initial cursor fetch so callers can prepare related resources or validate state.

BEHAVIOR: Fires immediately before CursorFirst or FindFirst starts retrieving matching shapes.

CONSTRAINTS: Handler execution affects fetch startup and should complete quickly.