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IConnectedCells.LocateByDiagonalOfEnvelope Method (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > ArcScan > ESRI.ArcGIS.ArcScan > Interfaces > IC > IConnectedCells Interface > IConnectedCells.LocateByDiagonalOfEnvelope Method
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IConnectedCells.LocateByDiagonalOfEnvelope Method

Generates the rectangles that represent all connected cells that meet the diagonal of envelope criteria.

[Visual Basic .NET]
Public Sub LocateByDiagonalOfEnvelope ( _
    ByVal Value As Double, _
    ByVal lessThan As Boolean, _
    ByVal equalTo As Boolean, _
    ByVal Foreground As Boolean, _
    ByVal bounds As IGeometry, _
    ByVal callbackSel As INotifySelectionBlock, _
    ByVal trackCancel As ITrackCancel, _
    ByVal stepProgressor As IStepProgressor _
public void LocateByDiagonalOfEnvelope (
    double Value,
    bool lessThan,
    bool equalTo,
    bool Foreground,
    IGeometry bounds,
    INotifySelectionBlock callbackSel,
    ITrackCancel trackCancel,
    IStepProgressor stepProgressor

Product Availability

Available with ArcGIS Desktop. Requires ArcScan Extension.


This method is called by the Select Connected Cells dialog.


The following code shows an example of this method in C#.

//You can get app from ICommand :: OnCreate() hook parameter
public void LocateByDiag()
IConnectedCells connectedCells = m_app.FindExtensionByName("ESRI ArcScan Tools") as IConnectedCells;
IMxDocument mxDoc = m_app.Document as IMxDocument;
INotifySelectionBlock foundBlock = new FoundBlock();
connectedCells.LocateByDiagonalOfEnvelope(1000, true, true, true, mxDoc.ActiveView.Extent, foundBlock, null, null);

Also create a new class (FoundBlock) with the following code.
public class FoundBlock : ESRI.ArcGIS.ArcScan.INotifySelectionBlock 
  public FoundBlock()
  #region INotifySelectionBlock Members
  void ESRI.ArcGIS.ArcScan.INotifySelectionBlock.SelectionBlock(ref ESRI.ArcGIS.Display.tagRECT rectangle, object block, ESRI.ArcGIS.esriSystem.ITrackCancel cancel)
    System.Diagnostics.Debug.Print("Found block");

See Also

IConnectedCells Interface