public UndoRedoInfo(string text, Win32.POINT scrollPos, int cursorLoc)
{
Text = text;
ScrollPos = scrollPos;
CursorLocation = cursorLoc;
}
/// <summary>
/// Sends a win32 message to get the scrollbars' position.
/// </summary>
/// <returns>a POINT structore containing horizontal and vertical scrollbar position.</returns>
private unsafe Win32.POINT GetScrollPos()
{
Win32.POINT res = new Win32.POINT();
IntPtr ptr = new IntPtr(&res);
Win32.SendMessage(Handle, Win32.EM_GETSCROLLPOS, 0, ptr);
return res;
}