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_SETITEMCOUNT 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