L_VecGetObjectViewContext

#include "lvkrn.h"

L_INT EXT_FUNCTION L_VecGetObjectViewContext(pVector, pObject, pMin, pMax)

pVECTORHANDLE pVector;	/* pointer to the vector handle */
const pVECTOROBJECT pObject;	/* pointer to a VECTOROBJECT structure */
pVECTORPOINT pMin;	/* pointer to a VECTORPOINT structure */
pVECTORPOINT pMax;	/* pointer to a VECTORPOINT structure */

Retrieves the minimum and maximum points of an object’s view context space.

Parameter	Description
pVector	Pointer to vector handle.
pObject	Pointer to a VECTOROBJECT structure that contains the vector object for which to get the view context.
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 pObject doesn’t 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.

See Also

Functions:	L_VecSetObjectViewContext, L_VecRemoveObjectViewContext
Topics:	Working View Context
	Getting Vector Object Information

Example

L_INT ChangeViewContext( pVECTORHANDLE pVector, pVECTOROBJECT pObject, pVECTORPOINT pMin, pVECTORPOINT pMax )
{
   L_INT  nRet;
   VECTORPOINT  Min;
   VECTORPOINT  Max;

   nRet = L_VecGetObjectViewContext ( pVector, pObject, &Min, &Max );
   if( SUCCESS != nRet )
   {
      nRet = L_VecSetObjectViewContext ( pVector, pObject, pMin, pMax );

      *pMin = Min;
      *pMax = Max;
   }

   if( SUCCESS != nRet )
   {
      L_VecRemoveObjectViewContext ( pVector, pObject );
   }

   return nRet;
}