捕杀鼠标长按消息

捕捉鼠标长按消息
不论界面是否打开，是否当前显示。
当鼠标左键在指定的屏幕区域按下5s后再放开，这时程序会触发相应的处理。
如果一般的左键按下，很快就放开，则不会有相应的处理。

请问，
1.怎样检测在屏幕指定的区域按下。
2.怎样检测鼠标长按5s。

不知道哪位大侠知道，万分感谢。（能有代码最好）

[解决办法]
没有现成代码

要用到 鼠标钩子

可以监控鼠标的行为 不管当前程序是否在最前


[解决办法]
不论界面是否打开，是否当前显示
只能用钩子,我有一个检测鼠标移动坐标的,如下:

VB.NET code

Imports System.Runtime.InteropServicesPublic Class Form1    Public Sub New()        InitializeComponent()        Me.webhtml.Url = New System.Uri(Application.StartupPath + "\test.html", System.UriKind.Absolute)    End Sub    Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click        Me.webhtml.ShowPageSetupDialog()        Me.Text = ("ShowPageSetupDialog")    End Sub    Private Sub ToolStripButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton2.Click        Me.webhtml.ShowPrintPreviewDialog()    End Sub    Protected Overrides Sub WndProc(ByRef m As Message)        MyBase.WndProc(m)    End Sub    Dim hook As New Win32Hook()      Private Sub hook_onMouseChange(ByVal sender As Object, ByVal e As EventArgs)        Try            Me.Text = Cursor.Position.ToString()        Catch ex As Exception        End Try    End Sub    Private Sub ToolStripButton3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton3.Click        AddHandler hook.onMouseChange, AddressOf hook_onMouseChange        hook.SetHook()    End Sub    Private Sub ToolStripButton4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton4.Click        RemoveHandler hook.onMouseChange, AddressOf hook_onMouseChange    End SubEnd ClassPublic Class Win32Hook    <DllImport("kernel32")> _    Public Shared Function GetCurrentThreadId() As Integer    End Function    <DllImport("user32", CharSet:=CharSet.Auto, CallingConvention:=CallingConvention.StdCall)> _    Public Shared Function SetWindowsHookEx(ByVal idHook As HookType, ByVal lpfn As HOOKPROC, ByVal hmod As Integer, ByVal dwThreadId As Integer) As Integer    End Function    Public Enum HookType        WH_GETMESSAGE = 5 '系统都会调用WH_CBT   Hook子程，这些事件包括    End Enum    Public Delegate Function HOOKPROC(ByVal nCode As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer    Public Event onMouseChange As System.EventHandler    Public Sub SetHook()        SetWindowsHookEx(HookType.WH_GETMESSAGE, New HOOKPROC(AddressOf Me.MyKeyboardProc), 0, GetCurrentThreadId())    End Sub    Public Function MyKeyboardProc(ByVal nCode As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer        RaiseEvent onMouseChange(Nothing, Nothing)        Return 0    End FunctionEnd Class
[解决办法]
Timer，tick事件计时！在mousedown事件里触发tick事件！