问题
Is it possible to get a list or a specific instance of IDebugEngine2 (MSDN) from a Visual Studio Package without using IVsLoader approach (described here)?
Normally I would expect most services to be available through GetService, either directly or through some other service. But I can not easily find anything that can provide debug engines.
回答1:
What are you trying to do with it? The debugger interfaces are extremely fragile. Often there are 2, 3, or maybe more possible ways to perform an action with the debugger interfaces, but the particular DE implementation only supports 1 of them. Debug engine implementers are not expecting any direct calls to their debug engine interfaces from anywhere except Visual Studio itself, and the risk of breaking debugger functionality if you attempt it lies somewhere between very high and guaranteed.
For example, here are some of the potential ways to tell a DE to launch and/or attach to a process:
IDebugEngineLaunch2.LaunchSuspendedIDebugPortEx2.LaunchSuspendedIDebugProgramEx2.AttachIDebugProgramNode2.Attach_V7IDebugProgramNodeAttach2.OnAttachIDebugEngine2.AttachIVsDebuggableProjectCfg.DebugLaunchVsShellUtilities.LaunchDebuggerIVsDebugger2.LaunchDebugTargetsIVsDebugger2.LaunchDebugTargets2
Edit 1: In the case of my Java debugger, the debug engine is created by the session manager with the following stack:
- My code calls
IVsDebugger2.LaunchDebugTargets2 - The environment calls back to my implementation of
IDebugProgramProvider2.WatchForProviderEvents - After creating a new instance of
IDebugProgram2(a copy ofIDebugProcess2obtained from theIDebugDefaultPort2that VS passed toWatchForProviderEventsis passed to theIDebugProgram2constructor), my code callsIDebugPortNotify2.AddProgramNode - The environment calls back to the constructor of my debug engine
来源：https://stackoverflow.com/questions/15524038/visual-studio-how-to-get-idebugengine2-from-vs-package-except-ivsloader