public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref TVITEM lParam);
string GetItemText(IntPtr hTreeItem)
{
string text;
TVITEM tvi = new TVITEM();
tvi.hItem = hTreeItem;
tvi.mask = (int)TreeViewItemFlags.TVIF_TEXT;
tvi.cchTextMax = 80;
tvi.pszText = Marshal.AllocHGlobal(80);
WindowsAPI.SendMessage(Handle, (int)TreeViewMessages.TVM_GETITEMW, 0, ref tvi);
text = Marshal.PtrToStringAuto(tvi.pszText);
return text;
}
public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref TVITEM lParam);