在Visual C#2010中获取DTE2对象的引用
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12-10-2019 - |
题
我想在Visual Studio 2010中使用带有C#的DTE2对象获得对当前解决方案的引用。
我首先尝试了以下代码:
var dte = Marshal.GetActiveObject("VisualStudio.DTE.10.0") as EnvDTE80.DTE2;
但是,当我打开2个解决方案,并且此代码在第一个解决方案中时,我没有参考当前解决方案,而是对我加载的最后一个解决方案的引用。我需要当前的解决方案...
在互联网上搜索,我在 如何从vspackage获取当前的解决方案目录?:
// Get an instance of the currently running Visual Studio IDE
DTE dte = (DTE)GetService(typeof(DTE));
但是,当我使用它时,我的DTE对象始终为空。
那么,如何使用.NET Framework 4.0的C#在VS2010中获取当前的解决方案对象?
解决方案
经过一些广泛的搜索和尝试,我终于使用添加到MSDN页面的评论获得了答案: http://msdn.microsoft.com/en-us/library/ms228755.aspx
我在我的C#项目中添加了一个静态类:
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using EnvDTE80;
[DllImport("ole32.dll")]
private static extern void CreateBindCtx(int reserved, out IBindCtx ppbc);
[DllImport("ole32.dll")]
private static extern void GetRunningObjectTable(int reserved, out IRunningObjectTable prot);
internal static DTE2 GetCurrent()
{
//rot entry for visual studio running under current process.
string rotEntry = String.Format("!VisualStudio.DTE.10.0:{0}", Process.GetCurrentProcess().Id);
IRunningObjectTable rot;
GetRunningObjectTable(0, out rot);
IEnumMoniker enumMoniker;
rot.EnumRunning(out enumMoniker);
enumMoniker.Reset();
IntPtr fetched = IntPtr.Zero;
IMoniker[] moniker = new IMoniker[1];
while (enumMoniker.Next(1, moniker, fetched) == 0)
{
IBindCtx bindCtx;
CreateBindCtx(0, out bindCtx);
string displayName;
moniker[0].GetDisplayName(bindCtx, null, out displayName);
if (displayName == rotEntry)
{
object comObject;
rot.GetObject(moniker[0], out comObject);
return (EnvDTE80.DTE2)comObject;
}
}
return null;
}
在我想访问当前IDE的时候:
var dte = CurrentIde.GetCurrent();
var sol = dte.Solution;
但是请记住....此代码在调试期间无法使用!!!从字符串rotentry开始的代码线...可以调用该过程。getCurrentProcess以获取当前过程的ID。
在我的addin中调试一些功能时(使用MME http://mme.codeplex.com/)我调用一个需要当前IDE的方法。我用调用addin方法的consoleapp测试。在获取当前IDE时,当前程序不是IDE,而是consoleapp.vshost.exe。因此,我的代码在调试过程中没有工作,但是在构建Addin并安装此addin之后确实有效。
其他提示
我觉得以下几点令人不安,所以我已经谈到了它们,并找到了一种对我有用的解决方案:
GetActiveObject("VisualStudio.DTE.10.0")
仅适用于第一个打开(我想)Visual Studio- 这
internal static DTE2 GetCurrent()
丹尼斯答案的方法需要视觉工作室过程ID。如果您从附加组件(我认为)运行代码,那很好,但在单位测试中不起作用。 - 调试模式的问题
我还从getCurrent方法开始 这里. 。问题是,我不知道如何进入正确的VisualStudio过程的过程(通常正在运行多个实例)。因此,我采用的方法是获得所有VisualStudio Rot条目及其DTE2,然后比较DTE222222.Solution.fullname与执行程序集位置(您看到一个更好的选择吗?)。虽然我很容易承认这不是很精确的科学,但是如果您没有特殊的输出路径配置,则应该有效。然后,我发现在调试模式下运行代码并访问DTE2 com对象抛出以下例外: System.Runtime.InteropServices.COMException: Call was rejected by callee. (Exception from HRESULT: 0x80010001 (RPC_E_CALL_REJECTED))
. 。但是有一种补救措施 消息过滤器. 。为了完整的清晰,我将代码包括在底部。
包含测试方法(用法示例)的测试类,调整后 GetCurrent
方法和辅助方法进行字符串比较:
using System;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using EnvDTE80;
using EnvDTE;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
[TestClass]
public class ProjectSettingsTest
{
/// <summary>
/// Tests that the platform for Mixed Platforms and Any CPU configurations
/// is Any CPU for all projects of this solution
/// </summary>
[TestMethod]
public void TestReleaseBuildIsAnyCPU()
{
MessageFilter.Register();
DTE2 dte2 = GetCurrent();
Assert.IsNotNull(dte2);
foreach (SolutionConfiguration2 config in dte2.Solution.SolutionBuild.SolutionConfigurations)
{
if (config.PlatformName.Contains("Mixed Platforms") || config.PlatformName.Contains("Any CPU"))
{
foreach (SolutionContext context in config.SolutionContexts)
Assert.AreEqual("Any CPU", context.PlatformName, string.Format("{0} is configured {1} in {2}/{3}", context.ProjectName, context.PlatformName, config.PlatformName, config.Name));
}
}
MessageFilter.Revoke();
}
[DllImport("ole32.dll")]
private static extern void CreateBindCtx(int reserved, out IBindCtx ppbc);
[DllImport("ole32.dll")]
private static extern void GetRunningObjectTable(int reserved, out IRunningObjectTable prot);
/// <summary>
/// Gets the current visual studio's solution DTE2
/// </summary>
public static DTE2 GetCurrent()
{
List<DTE2> dte2s = new List<DTE2>();
IRunningObjectTable rot;
GetRunningObjectTable(0, out rot);
IEnumMoniker enumMoniker;
rot.EnumRunning(out enumMoniker);
enumMoniker.Reset();
IntPtr fetched = IntPtr.Zero;
IMoniker[] moniker = new IMoniker[1];
while (enumMoniker.Next(1, moniker, fetched) == 0)
{
IBindCtx bindCtx;
CreateBindCtx(0, out bindCtx);
string displayName;
moniker[0].GetDisplayName(bindCtx, null, out displayName);
// add all VisualStudio ROT entries to list
if (displayName.StartsWith("!VisualStudio"))
{
object comObject;
rot.GetObject(moniker[0], out comObject);
dte2s.Add((DTE2)comObject);
}
}
// get path of the executing assembly (assembly that holds this code) - you may need to adapt that to your setup
string thisPath = System.Reflection.Assembly.GetExecutingAssembly().Location;
// compare dte solution paths to find best match
KeyValuePair<DTE2, int> maxMatch = new KeyValuePair<DTE2, int>(null, 0);
foreach (DTE2 dte2 in dte2s)
{
int matching = GetMatchingCharsFromStart(thisPath, dte2.Solution.FullName);
if (matching > maxMatch.Value)
maxMatch = new KeyValuePair<DTE2, int>(dte2, matching);
}
return (DTE2)maxMatch.Key;
}
/// <summary>
/// Gets index of first non-equal char for two strings
/// Not case sensitive.
/// </summary>
private static int GetMatchingCharsFromStart(string a, string b)
{
a = (a ?? string.Empty).ToLower();
b = (b ?? string.Empty).ToLower();
int matching = 0;
for (int i = 0; i < Math.Min(a.Length, b.Length); i++)
{
if (!char.Equals(a[i], b[i]))
break;
matching++;
}
return matching;
}
}
MessageFilter类:
/// <summary>
/// Class containing the IOleMessageFilter
/// thread error-handling functions.
/// </summary>
public class MessageFilter : IOleMessageFilter
{
// Start the filter.
public static void Register()
{
IOleMessageFilter newFilter = new MessageFilter();
IOleMessageFilter oldFilter = null;
CoRegisterMessageFilter(newFilter, out oldFilter);
}
// Done with the filter, close it.
public static void Revoke()
{
IOleMessageFilter oldFilter = null;
CoRegisterMessageFilter(null, out oldFilter);
}
//
// IOleMessageFilter functions.
// Handle incoming thread requests.
int IOleMessageFilter.HandleInComingCall(int dwCallType, System.IntPtr hTaskCaller, int dwTickCount, System.IntPtr lpInterfaceInfo)
{
return 0; //Return the flag SERVERCALL_ISHANDLED.
}
// Thread call was rejected, so try again.
int IOleMessageFilter.RetryRejectedCall(System.IntPtr hTaskCallee, int dwTickCount, int dwRejectType)
{
if (dwRejectType == 2)
// flag = SERVERCALL_RETRYLATER.
{
return 99; // Retry the thread call immediately if return >=0 & <100.
}
return -1; // Too busy; cancel call.
}
int IOleMessageFilter.MessagePending(System.IntPtr hTaskCallee, int dwTickCount, int dwPendingType)
{
//Return the flag PENDINGMSG_WAITDEFPROCESS.
return 2;
}
// Implement the IOleMessageFilter interface.
[DllImport("Ole32.dll")]
private static extern int CoRegisterMessageFilter(IOleMessageFilter newFilter, out IOleMessageFilter oldFilter);
}
[ComImport(), Guid("00000016-0000-0000-C000-000000000046"),
InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
interface IOleMessageFilter
{
[PreserveSig]
int HandleInComingCall(int dwCallType, IntPtr hTaskCaller, int dwTickCount, IntPtr lpInterfaceInfo);
[PreserveSig]
int RetryRejectedCall(IntPtr hTaskCallee, int dwTickCount, int dwRejectType);
[PreserveSig]
int MessagePending(IntPtr hTaskCallee, int dwTickCount, int dwPendingType);
}
我知道这是一个旧线程,但是我们需要将此代码与多个Visual Studio版本一起使用。我们按照以下来调整代码:
string processID = Process.GetCurrentProcess().Id.ToString();
if (displayName.StartsWith("!VisualStudio.DTE.", StringComparison.OrdinalIgnoreCase) &&
displayName.EndsWith(processID))
对于有兴趣使用f#的任何人都可以完成的任何人都在这里(当前设置在LINQPAD中运行):
open System;
open System.Runtime.InteropServices;
open System.Runtime.InteropServices.ComTypes;
open EnvDTE;
open System.Diagnostics;
//http://stackoverflow.com/questions/10864595/getting-the-current-envdte-or-iserviceprovider-when-not-coding-an-addin
//http://stackoverflow.com/questions/6558789/how-to-convert-out-ref-extern-parameters-to-f
//http://stackoverflow.com/questions/1689460/f-syntax-for-p-invoke-signature-using-marshalas
[<System.Runtime.InteropServices.DllImport("ole32.dll")>]
extern int CreateBindCtx(System.IntPtr inRef, IBindCtx& outParentRef);
[<System.Runtime.InteropServices.DllImport("ole32.dll")>]
extern int GetRunningObjectTable(System.IntPtr inRef, IRunningObjectTable& outParentRef);
//let dte = System.Runtime.InteropServices.Marshal.GetActiveObject("VisualStudio.DTE.12.0") :?> EnvDTE80.DTE2
let comName="VisualStudio.DTE.12.0"
let rotEntry = "!"+comName
//let mutable rot:IRunningObjectTable =null
let rot=
let mutable result:IRunningObjectTable = null
GetRunningObjectTable(nativeint 0, &result) |> ignore
result
let mutable enumMoniker:IEnumMoniker = null
rot.EnumRunning (&enumMoniker)
enumMoniker.Reset() |> ignore
let mutable fetched = IntPtr.Zero
let mutable moniker:IMoniker[] = Array.zeroCreate 1 //http://msdn.microsoft.com/en-us/library/dd233214.aspx
let matches = seq {
while enumMoniker.Next(1, moniker, fetched) = 0 do
"looping" |> Dump
let mutable bindCtx:IBindCtx = null
CreateBindCtx(nativeint 0, &bindCtx) |> ignore
let mutable displayName:string = null
moniker.[0].GetDisplayName(bindCtx,null, &displayName)
displayName |> Dump
if displayName.StartsWith(rotEntry) then
let mutable comObject = null
rot.GetObject(moniker.[0], &comObject) |> ignore
let dte = comObject:?>EnvDTE80.DTE2
yield displayName,bindCtx,comObject,dte.FullName, dte
}
matches |> Dump
我在下面做出了完美的解决方案(没有火箭科学)。这是从Visual Studio 20到10降低的,可以找到独立于VS版本的DTE。
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using EnvDTE80;
namespace Fortrus.Metadata
{
/// <summary>
/// This class takes care of fetching the correct DTE instance for the current process
/// The current implementation works it way down from Visual Studio version 20 to 10 so
/// it should be farely version independent
/// </summary>
public static class Processes
{
[DllImport("ole32.dll")]
private static extern void CreateBindCtx(int reserved, out IBindCtx ppbc);
[DllImport("ole32.dll")]
private static extern void GetRunningObjectTable(int reserved, out IRunningObjectTable prot);
private const int m_MaxVersion = 20;
private const int m_MinVersion = 10;
internal static DTE2 GetDTE()
{
DTE2 dte = null;
for (int version = m_MaxVersion; version >= m_MinVersion; version--)
{
string versionString = string.Format("VisualStudio.DTE.{0}.0", version);
dte = Processes.GetCurrent(versionString);
if (dte != null)
{
return dte;
}
}
throw new Exception(string.Format("Can not get DTE object tried versions {0} through {1}", m_MaxVersion, m_MinVersion));
}
/// <summary>
/// When multiple instances of Visual Studio are running there also multiple DTE available
/// The method below takes care of selecting the right DTE for the current process
/// </summary>
/// <remarks>
/// Found this at: http://stackoverflow.com/questions/4724381/get-the-reference-of-the-dte2-object-in-visual-c-sharp-2010/27057854#27057854
/// </remarks>
private static DTE2 GetCurrent(string versionString)
{
//rot entry for visual studio running under current process.
string rotEntry = String.Format("!{0}:{1}", versionString, Process.GetCurrentProcess().Id);
IRunningObjectTable rot;
GetRunningObjectTable(0, out rot);
IEnumMoniker enumMoniker;
rot.EnumRunning(out enumMoniker);
enumMoniker.Reset();
IntPtr fetched = IntPtr.Zero;
IMoniker[] moniker = new IMoniker[1];
while (enumMoniker.Next(1, moniker, fetched) == 0)
{
IBindCtx bindCtx;
CreateBindCtx(0, out bindCtx);
string displayName;
moniker[0].GetDisplayName(bindCtx, null, out displayName);
if (displayName == rotEntry)
{
object comObject;
rot.GetObject(moniker[0], out comObject);
return (EnvDTE80.DTE2)comObject;
}
}
return null;
}
}
}