ListView_SetItemCount  VPKYVK 

The ListView_SetItemCount macro prepares a list view control for adding a large number of items. You can use this macro or explicitly send the LVM_SETITEMCOUNTIGOOX1 message.

VOID ListView_SetItemCount(

    HWND hwnd,

 

    int cItems

 

   );

 

 

Parameters

hwnd

Handle to the list view control.

cItems

Number of items that the list view control will ultimately contain.

 

Return Values

No return value.

Remarks

By using the ListView_SetItemCount macro or the LVM_SETITEMCOUNT message  before adding a large number of items, you enable a list view control to reallocate its internal data structures only once rather than every time you add an item.

See Also

LVM_SETITEMCOUNT