LVectorObject::IsObjectSelected

#include "ltwrappr.h"

L_INT LVectorObject::IsObjectSelected(pbSelected)

L_BOOL *pbSelected;

pointer to a variable

Gets a value that indicates whether or not the class object is selected.

Parameter	Description
pbSelected	Pointer to a variable to be updated with a value that indicates whether or not the class object is selected. Possible values are:
	Value	Meaning
	TRUE	The class object is selected.
	FALSE	The class object is not selected.

Returns

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

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.

Example

This example will toggle the selection state of the object under a given 2D point.

L_INT LVectorObject__IsObjectSelectedExample(HWND hWnd, LVectorBase *pVector, LPPOINT pPoint) 
{ 
   UNREFERENCED_PARAMETER(hWnd); 
   L_INT          nRet; 
   LVectorObject  VectorObject;    /* Object under point */ 
   // Get object under that point 
   nRet = pVector->HitTest(pPoint, &VectorObject); 
   //Is there an object under that point? If yes, select it 
   if (nRet == SUCCESS) 
   { 
      L_BOOL bSelected; 
      nRet = VectorObject.IsObjectSelected(&bSelected); 
      if(nRet != SUCCESS) 
         return nRet; 
      nRet = VectorObject.SelectObject(!bSelected); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
   else 
      return nRet; 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Vector C++ Class Library Help

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Appendix

Functions:	LVectorObject::SelectObject, LVectorObject::DeleteObject, LVectorBase::HitTest
Topics:	Vector Images: Getting and Setting General Information