LVectorObject::GetViewContext

#include "ltwrappr.h"

L_INT LVectorObject::GetViewContext(pMin, pMax)

pVECTORPOINT pMin;	pointer to a VECTORPOINT structure
pVECTORPOINT pMax;	pointer to a VECTORPOINT structure

Retrieves the minimum and maximum points of an objects view context space.

Parameter	Description
pMin	Pointer to a VECTORPOINT structure to be updated with the minimum point of the view context space.
pMax	Pointer to a VECTORPOINT structure to be updated with the maximum point of the view context space.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function fails if the object doesnt have a preset view context.

Required DLLs and Libraries

LVKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Example

L_INT LVectorObject__ChangeViewContextExample( LVectorObject *pVecObj, pVECTORPOINT pMin, pVECTORPOINT pMax ) 
{ 
   L_INT  nRet; 
   VECTORPOINT  Min; 
   VECTORPOINT  Max; 
   nRet = pVecObj->GetViewContext( &Min, &Max ); 
   if( SUCCESS != nRet ) 
   { 
      nRet = pVecObj->SetViewContext( pMin, pMax ); 
      *pMin = Min; 
      *pMax = Max; 
   } 
   if( SUCCESS != nRet ) 
   { 
      pVecObj->RemoveViewContext( ); 
   } 
   return nRet; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Vector C++ Class Library Help

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Appendix

Functions:	LVectorObject::SetViewContext, LVectorObject::RemoveViewContext
Topics:	Vector Images: Obtaining Object Information
	Working with theView Context