LEADTOOLS Vector C++ Class Library Help > Classes and Member Functions > LVectorCircle > LVectorCircle Class Members > LVectorCircle::LVectorCircle |
#include "ltwrappr.h"
LVectorCircle::LVectorCircle(pCircle = NULL)
LVectorCircle::LVectorCircle(pObject, pVector =NULL)
pVECTORCIRCLE pCircle; |
/* pointer to a VECTORCIRCLE structure */ |
pVECTOROBJECT pObject; |
/* pointer to a VECTOROBJECT structure */ |
LVectorBase *pVector; |
/* pointer to an LVectorBase object */ |
Constructs and initializes the different member variables of the LVectorCircle object.
Parameter |
Description |
pCircle |
Pointer to a VECTORCIRCLE structure that contains information used to create and initialize the new vector circle object. |
pObject |
Pointer to a VECTOROBJECT structure that contains information used to create and initialize the new vector circle object. |
pVector |
Pointer to an LVectorBase object with which the newly constructed vector circle object will be associated. |
Returns
None
Comments
LVectorCircle::LVectorCircle(pCircle) is a constructor for the LVectorCircle object. It takes a valid pVECTORCIRCLE pointer and creates an LVectorCircle object.
LVectorCircle::LVectorCircle(pObject, pVector=NULL) creates an LVectorCircle object based on the information provided in pObject and associates the newly created LVectorCircle 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 LVectorCircle object using the LVectorCircle::LVectorCircle(pObject, pVector=NULL) constructor. For example:
//pObject->nType == type other than VECTOR_CIRCLE
//LVectorBase *pVector is valid
LVectorCircle MyVectorCircle(pObject, pVectorBase);
if (MyVectorCircle.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 LVectorCircle::LVectorCircle(pCircle), refer to LVectorCircle::LockObject.
For an example for LVectorCircle::LVectorCircle(pObject, pVector=NULL), refer to LVectorArc::LVectorArc(pObject, pVector = NULL).