C#怎样通过窗体句柄打开、关闭窗体？

Question

C#怎样通过窗体句柄打开、关闭窗体？具体代码怎么写？请帮帮忙，谢谢！

Answer 1

[DllImport("user32.dll ")]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); IntPtr hWnd= FindWindow(null, "Form1");
MessageBox.Show(hWnd.ToString());

Answer 2

用进程关闭一样的。 DialogResult dlg;
 [DllImport("kernel32")]
 public static extern long TerminateProcess(int handle, int exitCode);
string ProcessName = "";
            ProcessName = textBox1.Text;
            try
            {
                Process[] myProcess = Process.GetProcessesByName(ProcessName);
                dlg = MessageBox.Show("确定结束该进程吗？", "消息提示", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk);
                if (dlg == DialogResult.Yes)
                {
                    foreach (Process p in myProcess)
                    {
                        p.Kill();
                    }
                    MessageBox.Show("进程关闭成功");
                    textBox1.Clear();
                    textBox1.Focus();   
                }                else
                    textBox1.Focus();
                    return;
            }
            catch (Exception err)
            {
                MessageBox.Show(err.Message, "错误消息");
                this.textBox1.Focus();
            }

Answer 3

可以给窗体发送WM_Close消息，如果要彻底的话，直接杀进程