Hide Table of Contents
SetWitnessLineGap Method (IDisplayDimension)

Sets the gap for the specified dimension extension line.

.NET Syntax

Visual Basic (Declaration) 
Function SetWitnessLineGap( _
   ByVal WitnessIndex As Short, _
   ByVal UseDoc As Boolean, _
   ByVal Gap As Double _
) As Boolean
Visual Basic (Usage) 
Dim instance As IDisplayDimension
Dim WitnessIndex As Short
Dim UseDoc As Boolean
Dim Gap As Double
Dim value As Boolean
value = instance.SetWitnessLineGap(WitnessIndex, UseDoc, Gap)
bool SetWitnessLineGap( 
   short WitnessIndex,
   bool UseDoc,
   double Gap
bool SetWitnessLineGap( 
&   short WitnessIndex,
&   bool UseDoc,
&   double Gap


Index of the extension line whose gap to get
True to use the document default value of the gap, false to not (see Remarks)
Gap value in system units; ignored if UseDoc is true

Return Value

True if the operation succeeds, false if not



The UseDoc argument is dependent on the detailing standard. You can retrieve the document default value using the document-level user-preference swDetailingWitnessLineGap.

Call IModelView::GraphicsRedraw after calling this method to redraw the graphics area.


See Also


SolidWorks 2009 FCS, Revision Number 17.0

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   SetWitnessLineGap Method (IDisplayDimension)
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: API Help (English only) 2012 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.