让多线程调试更简单的宏代码FreezeThawThreads

多线程程序的调试是一件比较麻烦的事，在我的这篇博文里介绍了两个方便多线程调试的特性（一个是VS特性，一个是John Robbin的InterestingThread宏），今天我再来介绍John Robbin的另一个宏。如果你希望在调试多线程程序时只运行一个线程，而将其它的线程全部暂时Freeze掉，请尝试使用FreezeThawThreads宏。John Robbin原文帖出来的宏代码有一些排版的错误，导致不能编译通过，我已经做了修改，下面是可以编译通过的代码版本：

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 '' Wintellect Debugging Code
'' Copyright © 1997-2009 John Robbins
'            -- All rights reserved. 
'' Freeze and thaw threads in bulk.
''
'' Version 1.0 - July 17, 2009
'' - Initial version. 
 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 Imports System
 Imports EnvDTE
 Imports EnvDTE80
 Imports EnvDTE90
 Imports System.Diagnostics
 Imports System.Text
 Imports System.Collections.Generic
 Imports System.Runtime.InteropServices
 Imports System.Windows.Forms
 Public Module FreezeThawThreads
    Public Sub FreezeAllButActiveThread()
        Dim dbg As EnvDTE90.Debugger3 = CType(DTE.Debugger, Debugger3)
        If dbg.CurrentMode = dbgDebugMode.dbgBreakMode Then
            Dim currProg As Program = dbg.CurrentProgram
            For Each t As Thread2 In currProg.Threads
                If (t.ID <> dbg.CurrentThread.ID) Then
                    If t.IsFrozen = False Then
                        t.Freeze()
                    End If
                End If
            Next
        Else
            NotInBreakMode()
        End If
    End Sub
    Public Sub ThawAllFrozenThreads()
        Dim dbg As EnvDTE90.Debugger3 = CType(DTE.Debugger, Debugger3)
        If dbg.CurrentMode = dbgDebugMode.dbgBreakMode Then
            Dim currProg As Program = dbg.CurrentProgram
            For Each t As Thread2 In currProg.Threads
                If t.IsFrozen = True Then
                    t.Thaw()
                End If
            Next
        Else
            NotInBreakMode()
        End If
    End Sub
    Private Sub NotInBreakMode()
        MessageBox.Show(New MainWindow(), "You mustbe stopped in the debugger for this macro to work", "Wintellect Thread Freeze/Thaw Macros", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End Sub
    ' A helper class so I can parent  message boxes correctly on the IDE.
     Class MainWindow
        Implements IWin32Window
        Public ReadOnly Property Handle() _
                            As System.IntPtr Implements IWin32Window.Handle
            Get
                ' The HWnd property    is undocumented.
                Dim ret As IntPtr = CType(DTE.MainWindow.HWnd, IntPtr)
                Return (ret)
            End Get
        End Property
    End Class
End Module