[Shapelib] ShapeLib problem with SHPDestroyObject Method in .NET 1.1

David.Gancarz at ci.orlando.fl.us David.Gancarz at ci.orlando.fl.us
Mon Jun 12 05:36:37 PDT 2006


Mahesh:  I just saw you message this Monday morning.  The problem you are 
having is a bug in the .Net wrapper. I fixed it long ago but have never 
been able to get the new version posted to the shapelib site.  I am 
sending the correct version to you by private message.

Best regards,

David Gancarz




"Mahesh Anandan" <mahesh_anandan at comcast.net> 
Sent by: shapelib-bounces at lists.maptools.org
06/10/2006 04:19 AM
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[Shapelib] ShapeLib problem with SHPDestroyObject Method in .NET 1.1






Hi, 
 
I am using Shapelib to create Polygon, polyline and point layers. I am 
using .NET Wrapper available for the shapelib. 
 
My Problem: 
 
I am creating shape object using the Following method. 
 
ShapeLib.SHPObject shapeObject = ShapeLib.SHPCreateObject.
 
After writing the shape returned by the create object method, I destroy 
the object. I am consistently getting Access Violation error when calling 
the following method. 
 
ShapeLib.SHPDestroyObject(shapeObject);
 
Exact error message is: Object reference not set to an instance of an 
object.
 
For now, I am checking for shapeObject != null and also wrapped this in a 
try catch block. It did not make any difference. I am fighting with this 
problem for the last 3 weeks. Appreciate your response at the earliest.
 
Thank you,
 
MAHESH ANANDAN_______________________________________________
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