L_VecEmptyGroup

Summary

Empties the specified group. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Syntax

L_LVKRN_API L_INT L_VecEmptyGroup(pVector, pGroup)

Parameters

pVECTORHANDLE pVector

Pointer to the vector handle.

const pVECTORGROUP pGroup

Pointer to a VECTORGROUP structure that references the group to be emptied.

Returns

Comments

The specified group is emptied by deleting all objects within that group.

To delete a group, call L_VecDeleteGroup.

After calling this function, all clone objects of this group will reflect the change immediately.

Required DLLs and Libraries

• LTVKRN
• 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

• L_VecAddGroup
• L_VecDeleteGroup
• L_VecCopyGroup
• L_VecDeleteGroupClones
• L_VecAddObjectToGroup
• L_VecGetGroup
• L_VecGetGroupByIndex
• L_VecGetGroupByName

Topics

• Working with Vector Groups

Example

This example will delete all objects inside the group with the given name.

L_LTVKRNTEX_API L_INT VecEmptyGroupExample( 
   pVECTORHANDLE pVector, 
   L_TCHAR* pszName) 
{ 
   VECTORGROUP Group; 
   L_INT       nRet; 
 
   /* Get the group with the given name */ 
   nRet = L_VecGetGroupByName( pVector, pszName, &Group ); 
   if( SUCCESS == nRet ) 
      nRet = L_VecEmptyGroup ( pVector, &Group );  /* empty out */ 
 
   return nRet; 
}