{

public partial class UpdateUserForm : Form

{

public const int WM_USERDATA = 0x4B;

[DllImport("User32.dll")]

public static extern IntPtr FindWindow(String lpClassName, String lpWindowName);

[DllImport("user32.dll")]

public static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, ref COPYDATASTRUCT lParam);

int userId;

public UpdateUserForm(int userId, string userName, string phone)

{

InitializeComponent();

this.userId = userId;

userNameTextBox.Text = userName;

phoneTextBox.Text = phone;

updateButton.Click += updateUser;

}

private void updateUser(object sender, EventArgs e)

{

DBUtils.DBUser dBUser = new DBUtils.DBUser();

dBUser.updateUserInfo(userId, userNameTextBox.Text.ToString(), phoneTextBox.Text.ToString());

sendUpdateUserSuccessMessage();

this.Close();

}

private void sendUpdateUserSuccessMessage()

{

//string msg = this.tbMsg.Text.Trim();

//if (string.IsNullOrEmpty(msg))

//{

// MessageBox.Show("메세지를 입력해주세요");

// return;

//}

IntPtr hwnd = FindWindow(null, "도서관 관리");

IntPtr hwnd2 = FindWindow(null, "사용자 관리");

//byte[] buff = System.Text.Encoding.Default.GetBytes(msg);

COPYDATASTRUCT cds = new COPYDATASTRUCT();

//cds.dwData = new IntPtr(1001);

//cds.cbData = buff.Length + 1;

//cds.lpData = msg;

SendMessage(hwnd, WM_USERDATA, IntPtr.Zero, ref cds);

SendMessage(hwnd2, WM_USERDATA, IntPtr.Zero, ref cds);

}

}