LVectorBase::EnumVertices

#include "ltwrappr.h"

virtual L_INT LVectorBase::EnumVertices(L_UINT32 dwFlags=0)

/* flags that determine which object's flags to enumerate */

Enumerates all vertices within the vector handle.

Parameter	Description
dwFlags	Flags that determine which object's vertices to enumerate. Possible values are:
	Value	Meaning
	0	Enumerate the vertices of all objects.
	VECTOR_FLAGS_SELECTED_ONLY	Enumerate the vertices of selected objects only.

Returns

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

Comments

This function will enumerate all the vertices in the given vector.

Note: In DirectX, you cannot enumerate vertices, therefore this function will do nothing.

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:	LVectorBase::EnumObjects
Topics:	Manipulating Objects or Vertices within a Vector Image
	Vector Images: Obtaining Object Information

Example

class LMyVectorBase2EV: public LVectorBase
{
public:
   L_INT          m_nObjectCount ;
public:
   LMyVectorBase2EV();
   virtual ~LMyVectorBase2EV() ;
   virtual L_INT EnumVerticesCallBack(pVECTORHANDLE pVector, pVECTORPOINT pPoint);
};
LMyVectorBase2EV::LMyVectorBase2EV()
{
   m_nObjectCount = 0 ;
}
LMyVectorBase2EV::~LMyVectorBase2EV()
{
}
L_INT LMyVectorBase2EV::EnumVerticesCallBack(pVECTORHANDLE pVector, pVECTORPOINT pPoint)
{
   UNREFERENCED_PARAMETER(pVector);
   UNREFERENCED_PARAMETER(pPoint);
   m_nObjectCount++ ;
   return SUCCESS ;
}
L_INT LVectorBase__EnumVerticesExample(HWND hWnd)
{
   L_INT             nRet;
   L_TCHAR           szTemp[100];
   LMyVectorBase2EV  Vector;
   nRet = Vector.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 16\\Images\\test.dxf"));
   if(nRet != SUCCESS)
      return nRet;
   //Get the total number of vertices
   Vector.m_nObjectCount=0;
   Vector.EnableCallBack (TRUE);
   nRet = Vector.EnumVertices();
   if(nRet != SUCCESS)
      return nRet;
   wsprintf(szTemp, TEXT("Total Vertices in Vector: %d\n"), Vector.m_nObjectCount);
   MessageBox(hWnd, szTemp, TEXT(""), MB_OK);
   return SUCCESS;
}