Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
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CPtrArray
CObject                                     Up Contents Index Back
──Microsoft Foundation Classes──────────────────────────────────────────────
 
  Description
 
  The CPtrArray class supports arrays of void pointers.
 
  The member functions of CPtrArray are similar to the member functions of
  class CObArray Because of this similarity, you can use the CObArray
  reference documentation for member function specifics. Wherever you see
  a CObject pointer as a function parameter or return value, substitute a
  pointer to void.
 
  CObject* CObArray::GetAt( int <nIndex> ) const;
 
  for example, translates to
 
  void* CPtrArray::GetAt( int <nIndex> ) const;
 
  CPtrArray incorporates the IMPLEMENT_DYNAMIC macro to support run-time
  type access and dumping to a CDumpContext object. If you need a dump of
  individual pointer array elements, you must set the depth of the dump
  context to 1 or greater.
 
  Pointer arrays may <not> be serialized.
 
  When a pointer array is deleted, or when its elements are removed, only
  the pointers are removed, not the entities they reference.
 
  #include <afxcoll.h>
 
  Public Members
 
  Construction/Destruction
 
  CPtrArray   Constructs an empty array for void pointers.
 
  ~CPtrArray   Destroys a CPtrArray object.
 
  Bounds
 
  GetSize         Gets number of elements in this array.
 
  GetUpperBound   Returns the largest valid index.
 
  SetSize         Sets the number of elements to be contained in this
                    array.
 
  Operations
 
  FreeExtra   Frees all unused memory above the current upper bound.
 
  RemoveAll   Removes all the elements from this array.
 
  Element Access
 
  GetAt       Returns the value at a given index.
 
  SetAt       Sets the value for a given index; array not allowed to
                grow.
 
  ElementAt   Returns a temporary reference to the element pointer
                within the array.
 
  Growing the Array
 
  SetAtGrow   Sets the value for a given index, growing the array if
                necessary.
 
  Add         Adds an element to the end of the array; grows the array
                if necessary.
 
  Insertion/Removal
 
  InsertAt   Inserts an element (or all the elements in another array)
               at a specified index.
 
  RemoveAt   Removes an element at a specific index.
 
  Operators
 
  operator []   Sets or gets the element at the specified index.
 
 
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