//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
internal static ProxySimple ElementProviderFromPoint(IntPtr hwnd, ProxyFragment parent, int item, int x, int y)
{
NativeMethods.LVHITTESTINFO_INTERNAL hitTest = WindowsListView.SubitemHitTest(hwnd, item, new NativeMethods.Win32Point(x, y));
if (hitTest.iSubItem >= 0)
{
return(new ListViewSubItem(hwnd, parent, hitTest.iSubItem, item));
}
// subitems do not exist
return(parent);
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint(int x, int y)
{
NativeMethods.Win32Point pt = new NativeMethods.Win32Point(x, y);
NativeMethods.LVHITTESTINFO_INTERNAL hitTest = WindowsListView.SubitemHitTest(_hwnd, pt);
if ((hitTest.flags & NativeMethods.LVHT_EX_GROUP_HEADER) != 0)
{
return(this);
}
if ((hitTest.flags & NativeMethods.LVHT_ONITEM) != 0 && hitTest.iItem >= 0)
{
// create the item
return(new ListViewItem(_hwnd, this, hitTest.iItem));
}
// If we did not land on an item we may be at a subset link these only exist
// in v6 comctrl and vista or later.
if (_isComctrlV6OnOsVerV6orHigher)
{
// Allocate a local LVHITTESTINFO struct.
NativeMethods.LVHITTESTINFO_V6 hitTestNative = new NativeMethods.LVHITTESTINFO_V6(hitTest);
unsafe
{
XSendMessage.XSendGetIndex(_hwnd, NativeMethods.LVM_HITTEST, new IntPtr(-1), new IntPtr(&hitTestNative), Marshal.SizeOf(hitTestNative.GetType()));
}
if ((hitTestNative.flags & NativeMethods.LVHT_EX_GROUP_SUBSETLINK) != 0)
{
GroupManager.GroupInfo groupInfo = GetGroupInfo(_hwnd, ID);
int [] items = groupInfo._items;
if (groupInfo._count <= 0 || groupInfo._count > items.Length)
{
return(null);
}
int index = items [groupInfo._count - 1];
return(CreateGroupSubsetLink(index + 1));
}
}
return(this);
}
