I'm writing a VBE/VBIDE add-in and I have a tool window that changes based on the open CodePane objects. Is there an event I can monitor when a code pane is added or removed from the CodePanes collection?
The CodePanes collection itself appears to have no Events associated with it.
If there is no event available, I'm open to other workarounds. Polling would be a reliable fallback, but I'd rather not go that route if I could avoid it.
Related
I have to enumerate all process running on my machine and notify if some changement will happen (for example: change of visibility of windows, open a new window, close a window).
To enumerate all processes I can use this function provided by MSDN: https://msdn.microsoft.com/en-us/library/windows/desktop/ms682623(v=vs.85).aspxI thought that I need to save a list of running processes and check (how without polling?) if it changes. Can I do it without saving current running processes?
For the visibility changes here https://msdn.microsoft.com/it-it/library/windows/desktop/ms646274(v=vs.85).aspx I found that VM_ACTIVATE message is sent to both windows. How can I catch it? Can I do it in another way?
For whom is interested in this topic, I found that to check if a window is created or destroyed I've to use SetWinEventHook(), like in the example of its MSDN page. I simply check if event value is EVENT_OBJECT_CREATE or EVENT_OBJECT_DESTROY. For other events, check the event constants list.
I need my Visual Studio extension to react to debugging events. I've registered a IDebugEventCallback2 and I'm receiving events, but all I get for each event is an opaque IDebugEvent2 and a Guid, many of which are not only undocumented but don't appear anywhere on the web (or in my registry).
My specific requirement at the moment is to know when the process is Continued - ie. the user has hit Continue, Run to cursor, etc. What Guid should I be looking for?
Or is there some other event family that I should be subscribing to?
(More generally, is there some way I'm missing to find out about the events that are delivered to my IDebugEventCallback2::Event callback, when many of them don't appear in MSDN or anywhere else? Thanks!)
There is no easy way to do this. Actions such as Continue and Run to cursor are abstractions implemented by Visual Studio and do not correspond to any unique event(s) with respect to the debug engine. The debug engine event reporting interface IDebugEventCallback2 will enable you to get notified only on fine-grained events such as when creating a breakpoint or reaching a breakpoint.
While Visual Studio enables you to perform actions such as Continue and Run to cursor programmatically, it does not provide a direct way to get notified when they are taken.
You can use EnvDTE.DebuggerEvents.OnXxx events to get notified when something is about to happen. In particular, the OnEnterBreakMode event enables you to intercept a breakpoint hit and possibly take an action. You can also inspect all the details of the reached breakpoint(s) using the current EnvDTE.Debugger inside the event handler.
Now with some effort, you can use these constructs to implement events that correspond to all Visual Studio debugging actions including Continue and Run to cursor accurately. If you require additional events not provided by EnvDTE.DebuggerEvents (such as when a breakpoint is inserted), you have no choice but use IDebugEventCallback2.Event. In this case if you have specific events in mind, please mention them explicitly and I might be able to tell you the corresponding IDebugEventCallback2.Event GUIDs.
You probably got off on the wrong foot here, the IDebugXxx interfaces were really intended to create your own debugging engine. Still useful perhaps to see what is going on in the existing engine, you are suppose to use QueryInterface() to discover the specific interface that matches the event. Like IDebugEngineCreateEvent2, IDebugProcessCreateEvent2, IDebugProcessDestroyEvent2, etcetera. There are a bunch of them, they are listed in the VSSDK\VisualStudioIntegration\Common\Inc\msdbg.h header and include their IID.
Best thing to do is peek at this sample, it shows how to crack the event notification into the specific interfaces. The AD7Events.cs source file shows the wrappers. Do keep in mind that this sample was made to show how to create an engine, not how to use the one already built into VS.
But yes, you are not going to get a "continue debug" event out of this. A debugging engine does not need that event since it is already responsible for taking care of that by itself. It already knows when it calls IDebugProgram3::Continue().
Surely what you are looking for is IVsDebugger.AdviseDebuggerEvents(). That's the one that tells you what the built-in debugger is doing. You need to pass an object of a class that implements IVsDebuggerEvents, your OnModeChanged() method will be called with a DBGMODE notification. I don't see a lot of fantastic examples that demonstrate usage, this web page might be helpful.
I am looking for an event/interface to use that notifies me once all projects have loaded in a solution after opening a solution.
I have implemented OnAfterOpenSolution in IVsSolutionEvents2 interface. This gets called immediately after the solution opens... so any code I run against the UI thread, even asycnhronously, locks up the IDE prior to the project(s) loading.
Is there a similar technique to implementing `OnAfterOpenSolution', that is called once all the projects for the solution have opened?
The OnAfterBackgroundSolutionLoadComplete event in the IVsSolutionLoadEvents interface is fired after all projects for the solution have completed loading. The implementation for this will still need to implement or extend from an implementation of one of the IVsSolutionEvents interfaces in order to attach the event using IVsSolution.AdviseSolutionEvents(..) method.
Upon Further investigation in this area, the OnAfterBackgroundSolutionLoadComplete only occurs if projects are set to load in the background. If the background loading has been disabled this event will not occur. You will likely also have to implement IVsSolutionLoadManager and ensure that at least 1 project has a background load priority if you intend to rely on the OnAfterBackgroundSolutionLoadComplete event, or switch based on how the user has set their loading priority.
i'm writing a extension, which needs to call some JS from the current tab/document when user closes this tab (some saving etc). document.onbeforeunload doesn't do it for me, because it's also called when the page is reloaded. I'm looking for something like tryToClose but for tabs.
You need to listen to "TabClose" event within the extension as illustrated at Notification when a tab is added or removed
I'm able to catch the event. Any pointers on how to prevent the closing of the tab? I attempted event.stopPropagation() on the handler code. It does not stop the closing of the tab!
I wanted to add an event for a textbox to handle when it loses focus. I was sure I remembered some sort of LostFocus event, but I didn't see it in the Properties grid. But sure enough, the event exists if I access it programmatically. I'm using VS2008 - any reason why this event (and maybe others?) wasn't shown in the Properties grid?
Control.LostFocus is marked with [BrowsableAttribute(false)]. This means it will not be shown in the Properties window. For details see BrowsableAttribute.
Here's the declaration:
[BrowsableAttribute(false)]
public event EventHandler LostFocus
LostFocus is a troublesome event, this is the fine print from the SDK docs for WM_KILLFOCUS, the underlying Windows message:
While processing this message, do not make any function calls that display or activate a window. This causes the thread to yield control and can cause the application to stop responding to messages. For more information, see Message Deadlocks.
Use the Leave event instead.