private void SetLocation()
{
DataTable dt = new DataTable();
int left = txtNewLeft.Text != "" ? (int)dt.Compute(txtNewLeft.Text, "") : m_WindowRect.Left;
int top = txtNewTop.Text != "" ? (int)dt.Compute(txtNewTop.Text, "") : m_WindowRect.Top;
int width = txtNewWidth.Text != "" ? (int)dt.Compute(txtNewWidth.Text, "") : m_WindowRect.Width - m_WindowRect.Left;
int height = txtNewHeight.Text != "" ? (int)dt.Compute(txtNewHeight.Text, "") : m_WindowRect.Height - m_WindowRect.Top;
User32Windows.SetWindowPos(m_Hwnd, User32Windows.HWND_TOP, left, top, width, height, User32Windows.SWP_NOZORDER);
GetCharacteristics();
}