通过编程向控件发送消息

Form中有两个Button：button1和button2，按下button2后会给button1发送一个click消息

 

[DllImport("user32.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr PostMessage(IntPtr hwnd, int wmsg, IntPtr wparam, IntPtr lparam);

 

private void button2_Click(object sender, EventArgs e)
{
    IntPtr hwnd_win;
    IntPtr hwnd_button;

    const int bm_click = 0x00f5;
    Message msg = Message.Create(this.button1.Handle, bm_click, new IntPtr(0), new IntPtr(0));
    PostMessage(msg.HWnd, msg.Msg, msg.WParam, msg.LParam);
}

 

private void button1_Click(object sender, EventArgs e)
{
      this.Close();
}

 

Windows Mobile中

using Microsoft.WindowsCE.Forms;

[DllImport("coredll.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr PostMessage(IntPtr hwnd, int wmsg, IntPtr wparam, IntPtr lparam);