An application sends an LB_GETITEMRECT message to retrieve the dimensions of the rectangle that bounds a list box item as it is currently displayed in the list box.
LB_GETITEMRECT
wParam = (WPARAM) index; // item index
lParam = (LPARAM) (RECT FAR*) lprc; // address of rectangle
Parameters
index
Value of wParam. Specifies the zero-based index of the item.
Windows 95: The wParam parameter is limited to 16-bit values. This means list boxes cannot contain more than 32,767 items. Although the number of items is restricted, the total size in bytes of the items in a listbox is limited only by available memory.
lprc
Value of lParam. Points to a RECT structure that will receive the client coordinates for the item in the list box.
Return Values
If an error occurs, the return value is LB_ERR.
See Also