LVectorPie::LVectorPie

#include "ltwrappr.h"

LVectorPie::LVectorPie(pPie = NULL)

LVectorPie::LVectorPie(pObject, pVector =NULL)

Constructs and initializes the different member variables of the LVectorPie object.

Parameters

pVECTORPIE pPie

Pointer to a VECTORPIE structure that contains information used to create and initialize the new vector line object.

pVECTOROBJECT pObject

Pointer to a VECTOROBJECT structure that contains information used to create and initialize the new vector pie object.

LVectorBase *pVector

Pointer to an LVectorBase object with which the newly constructed vector pie object will be associated.

Returns

None.

Comments

LVectorPie::LVectorPie(pPie) is a constructor for the LVectorPie object. It takes a valid pVECTORPIE pointer and creates an LVectorPie object.

LVectorPie::LVectorPie(pObject, pVector=NULL) creates an LVectorPie object based on the information provided in pObject and associates the newly created LVectorPie object with the specified LVectorBase object. This constructor can be used with the LVectorLayer::EnumObjects function, which returns a valid pVECTOROBJECT pointer in the LVectorLayer::EnumObjectsCallBack member function. It can also be used with LVectorBase::VectorEventProcCallBack, which can also return a pObject.

Note that it is possible to construct an invalid LVectorPie object using the LVectorPie::LVectorPie(pObject, pVector=NULL) constructor. For example:

   //pObject->nType == type other than VECTOR_PIE   
   //LVectorBase *pVector is valid   
   LVectorPie MyVectorPie(pObject, pVectorBase);   
   if (MyVectorPie.IsTypeValid() == FALSE)   
      MessageBox(NULL, TEXT("Invalid Vector Object"), TEXT(""), MB_OK); 

Required DLLs and Libraries

See Also

Functions

Example

For an example for LVectorPie::LVectorPie(pPie), refer to LVectorPie::LockObject.
For an example for LVectorPie::LVectorPie(pObject, pVector=NULL), refer to LVectorArc::LVectorArc(pObject, pVector = NULL).

Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Vector C++ Class Library Help