LVectorGroup::EmptyGroup
#include "ltwrappr.h"
virtual L_INT LVectorGroup::EmptyGroup()
Empties the class object's associated group. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
The associated group is emptied by deleting all objects within that group.
To delete a group, call LVectorGroup::DeleteGroup.
After calling this function, all clone objects of this group will reflect the change immediately.
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::AddGroup, LVectorGroup::DeleteGroup, LVectorBase::CopyGroup, LVectorGroup::DeleteGroupClones, LVectorBase::GetGroupByIndex, LVectorBase::GetGroupByName |
Topics: |
Example
This example will empty all objects from the second group (index 1).
L_INT LVectorGroup__EmptyGroupExample(HWND hWnd, LVectorBase *pVector) { L_INT nRet; LVectorGroup VectorGroup; nRet = pVector->GetGroupByIndex(1, &VectorGroup); if (nRet == SUCCESS) { nRet = VectorGroup.EmptyGroup(); if(nRet != SUCCESS) return nRet; } else { MessageBox(hWnd, TEXT("Vector has less than two groups"), TEXT(""), MB_OK); return nRet; } return SUCCESS; }