private static void ListViewMouseDown(object sender, MouseEventArgs e)
{
if (sender is ListView listview)
{
LvHittestInfo lvHitInfo = new LvHittestInfo();
Point p = new Point(e.X, e.Y);
lvHitInfo.pt = p;
try
{
int id = SendMessage(listview.Handle, 0x1000 + 18, -1, ref lvHitInfo);
if (e.Button == MouseButtons.Right)
{
InvokeRightClick(listview, id);
}
else if (e.Button == MouseButtons.Left && lvHitInfo.flags == 0x50000000)
{
ToggleGroupCollapseState(listview.Handle, id);
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message + Environment.NewLine + ex.StackTrace);
}
}
}
static extern int SendMessage(IntPtr window, int message, int wParam, ref LvHittestInfo lParam);
