LVectorBase::AddGroup

#include "ltwrappr.h"

virtual L_INT LVectorBase::AddGroup(pVectorGroup, dwFlags = VECTOR_FLAGS_RENAME_DUPLICATES)

Adds a new empty group to a vector handle.

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

Parameters

LVectorGroup *pVectorGroup

Pointer to the vector group object that specifies the group settings.

L_UINT32 dwFlags

Flag that indicates whether or not to rename duplicate group names. Possible values are:

Returns

Comments

To add a new vector group, do the following:

1. Declare an LVectorGroupobject.

2. Call LVectorGroup::GetGroupDesc to retrieve the current group settings.

3. Change the group settings.

4. Call LVectorGroup::SetGroupDesc to set the changed group settings.

5. Pass the address of the LVectorGroup object to LVectorBase::AddGroup.

Required DLLs and Libraries

• LTVKRN
• LVDLG
• LTFIL
• 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

• LVectorGroup::DeleteGroup
• LVectorGroup::GetGroupDesc
• LVectorGroup::SetGroupDesc
• LVectorBase::GetGroupByName
• LVectorBase::GetGroupByIndex
• LVectorBase::CopyGroup
• LVectorGroup::EmptyGroup
• LVectorGroup::DeleteGroupClones

Topics

• Working with Vector Groups

Example

This example will add a new group to a vector handle.

L_INT LVectorBase__AddGroupExample(HWND hWnd, LVectorBase *pVector) 
{ 
   UNREFERENCED_PARAMETER(hWnd); 
 
   L_INT             nRet; 
   LVectorGroup      VectorGroup; 
   VECTORGROUPDESC   GroupDesc; 
 
   nRet = VectorGroup.GetGroupDesc(&GroupDesc); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   lstrcpy(GroupDesc.szName, TEXT("My New Group")); 
 
   nRet = VectorGroup.SetGroupDesc(&GroupDesc); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = pVector->AddGroup(&VectorGroup, VECTOR_FLAGS_RENAME_DUPLICATES); 
   if(nRet != SUCCESS) 
   { 
      MessageBox( NULL, TEXT("Could not add group!"), TEXT(""), MB_OK ); 
 
      return nRet; 
   } 
 
   //...LVectorGroup destructor called when VectorGroup goes out of scope 
 
   return SUCCESS; 
}