net做的windows服务程序，如何与用户界面交互？
我用.net做了个windows服务程序，网上查到了些东西，可以弹出个winform用户界面来了，现在我想在服务中放个timer,定时的写些内容，并显示在winform用户界面中的textbox1里，该怎么做？我的大致代码如下(不成功):
public partial class Service_CARMS : ServiceBase
{
Form_Main f; //与用户交互的Form窗口
System.Threading.Thread threadform = null;
protected override void OnStart(string[] args)
{
threadform = new Thread(new ThreadStart(FormShow));
threadform.Start();
}
public void FormShow()
{
GetDesktopWindow();
IntPtr hwinstaSave = GetProcessWindowStation();
IntPtr dwThreadId = GetCurrentThreadId();
IntPtr hdeskSave = GetThreadDesktop(dwThreadId);
IntPtr hwinstaUser = OpenWindowStation("WinSta0", false, 33554432);
if (hwinstaUser == IntPtr.Zero)
{
RpcRevertToSelf();
return;
}
SetProcessWindowStation(hwinstaUser);
IntPtr hdeskUser = OpenDesktop("Default", 0, false, 33554432);
RpcRevertToSelf();
if (hdeskUser == IntPtr.Zero)
{
SetProcessWindowStation(hwinstaSave);
CloseWindowStation(hwinstaUser);
return;
}
SetThreadDesktop(hdeskUser);
IntPtr dwGuiThreadId = dwThreadId;
f = new Form_Main(); //此FORM1可以带notifyIcon，可以显示在托盘里，用户可点击托盘图标进行设置
System.Windows.Forms.Application.Run(f);
dwGuiThreadId = IntPtr.Zero;
SetThreadDesktop(hdeskSave);
SetProcessWindowStation(hwinstaSave);
CloseDesktop(hdeskUser);
CloseWindowStation(hwinstaUser);
}
[DllImport("user32.dll")]
static extern int GetDesktopWindow();
[DllImport("user32.dll")]
static extern IntPtr GetProcessWindowStation();
[DllImport("kernel32.dll")]
static extern IntPtr GetCurrentThreadId();
[DllImport("user32.dll")]
static extern IntPtr GetThreadDesktop(IntPtr dwThread);
[DllImport("user32.dll")]
static extern IntPtr OpenWindowStation(string a, bool b, int c);
[DllImport("user32.dll")]
static extern IntPtr OpenDesktop(string lpszDesktop, uint dwFlags,
bool fInherit, uint dwDesiredAccess);
[DllImport("user32.dll")]
static extern IntPtr CloseDesktop(IntPtr p);
[DllImport("rpcrt4.dll", SetLastError = true)]
static extern IntPtr RpcImpersonateClient(int i);
[DllImport("rpcrt4.dll", SetLastError = true)]
static extern IntPtr RpcRevertToSelf();
[DllImport("user32.dll")]
static extern IntPtr SetThreadDesktop(IntPtr a);
[DllImport("user32.dll")]
static extern IntPtr SetProcessWindowStation(IntPtr a);
[DllImport("user32.dll")]
static extern IntPtr CloseWindowStation(IntPtr a);
private void timer1_Tick(object sender, EventArgs e)
{
//MessageBox.Show("mm");
////////经调试发下以下代码异常,提示
/////"调用的目标发生了异常,..........{"未将对象引用设置到对象的实例
f.ShowInf("触发器触发"); //调用与用户交互的Form里的方法，该方法附加字符串到textbox1中。
}
}
救命啦
[解决办法]
timer用system的timer，不用form的timer
[解决办法]
怎么我看的都说不行呢。
例如:
http://stackoverflow.com/questions/5836977/show-status-window-from-windows-service
[解决办法]
既然带界面了，你为啥还选择window服务去做这样的事情呢？何不直接采用form程序？
[解决办法]
