ArcGIS Developer Help

ISketchTool Interface

Provides access to members that control the main sketch tool.

Product Availability

Available with ArcGIS Desktop.

When To Use

Use ISketchTool when you want to set and get specific information about the sketch tool.

Members

	Name	Description
	AddPoint	Adds a point to the sketch.
	Anchor	The anchor of the sketch.
	AngleConstraint	The sketch's angular constraint.
	Constraint	The sketch constraint.
	DistanceConstraint	The sketch's distance constraint.
	IsStreaming	Indicates whether stream mode digitizing is enabled.
	Location	The current location of the mouse.

Classes that implement ISketchTool

Classes	Description

Remarks

The SketchTool object is the default sketch tool on the Editor toolbar. This sketch tool has its own context menu with commands such as Direction, Distance, and Parallel. Add your own custom commands or macros to the Sketch Tool context menu using the Customize dialog box.

Use ISketchTool when you want to set and get specific information about the Sketch tool. For example, when creating a custom Sketch tool menu item, you may need to get the Sketch tool�s current location or the edit sketch anchor point. For example, the Parallel command uses the Location property to find the feature on which the sketch tool was rightclicked before the command was selected.

[C#]

This sample shows how to set the angle constraint on the sketch tool. In a custom sketch tool the IApplication app is a field class and set using the hook parameter of the ICommand::OnCreate procedure.

private void SetAngleConstraint()
{
    IEditor aEditor = app.FindExtensionByName("ESRI Object Editor") as IEditor;
    double dPi = Math.PI;
    IMxApplication mxApp = app as IMxApplication;

    ISketchTool sketchTool = app.CurrentTool.Command as ISketchTool;
    INumberDialog angleDialog = new NumberDialogClass();
    if (angleDialog.DoModal("AngleConstraint", 0, 4, aEditor.Display.hWnd))
    {
      sketchTool.AngleConstraint = angleDialog.Value * dPi / 180;
      sketchTool.Constraint = esriSketchConstraint.esriConstraintAngle;
    }
}