LEADTOOLS Vector C++ Class Library Help > Classes and Member Functions > LVectorPie > LVectorPie Class Members > LVectorPie::LVectorPie |
#include "ltwrappr.h"
LVectorPie::LVectorPie(pPie = NULL)
LVectorPie::LVectorPie(pObject, pVector =NULL)
pVECTORPIE pPie; |
/* pointer to a VECTORPIE structure */ |
pVECTOROBJECT pObject; |
/* pointer to a VECTOROBJECT structure */ |
LVectorBase *pVector; |
/* pointer to an LVectorBase object */ |
Constructs and initializes the different member variables of the LVectorPie object.
Parameter |
Description |
pPie |
Pointer to a VECTORPIE structure that contains information used to create and initialize the new vector line object. |
pObject |
Pointer to a VECTOROBJECT structure that contains information used to create and initialize the new vector pie object. |
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
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: |
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).