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Access Violation Queryinterface

undo a gzip recursively Different tasks, same characters I've broken my new MacBook Pro (with touchbar) like this, do I have to repair it? EDITED: I create a host using .NET with the follow code and works, but Delphi host still not working:

 var instancia = moduleManager.CreateInstance(moduleManager.Plugins["PluginModuleTeste.PluginTeste"]); string res = (string)instancia.GetType().InvokeMember("Echo", System.Reflection.BindingFlags.InvokeMethod, null, Why does the U-2 use a chase car when landing? It holds 0xc. http://arnoldtechweb.com/access-violation/vst-access-violation.html 

Try ub 5d931569 in windbg. –Marc Sherman Oct 8 '15 at 13:38 1 That's unreadable. Maybe it depends on the server that is connected to. Log In C# Module Manager + Delphi Host - Access Violation at Address ABABABAB on onvoke method Hydra AlceuCardoso (Alceu Silveira Cardoso) 2014-08-12 14:40:44 UTC #1 C# code:
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E_NOINTERFACE Either the object pointed to by ppv does not support the interface identified by riid, or the QueryInterface operation on the class object returned E_NOINTERFACE. It shouldn't be necessary, but if you ever end up dealing with a pathological QueryInterface, the extra checking may be safer. Any clue will be of great help.

  1. And more specifically - it seems to fall inside the QueryInterface() call within the Supports() method.
  2. Thanks, Black ---------------------------------------------------------------- Users Guide http://discuss.microsoft.com/archives/mailfaq.asp contains important info.
  3. But if you comment out the code that tells it the interface is good, it ends up not trying to use the interface, and nothing breaks.
  4. So _Release gets called, and… boom!
  5. What would be your next deduction in this game of Minesweeper? "How are you spending your time on the computer?" What is the best way to attach backing on a quilt

What happens if you QI for IID_IUnknown instead? 3. Can also indicate that the value you specified in dwClsContext is not in the registry. Return Values: S_OK Location and connection to the specified class object was successful. Not the answer you're looking for?

More likely, we're talking "Do you want to send this error report to Microsoft?" and an infinite series of exception messages, until you finally get fed up and kill the process. If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.Would you like to participate? Browse other questions tagged delphi access-violation queryinterface or ask your own question. http://stackoverflow.com/questions/2486654/access-violation-exception-from-delphis-supports-queryinterface Is it a security vulnerability if the addresses of university students are exposed?

You can leave a response, or trackback from your own site. The crash is seen frequently. So it's possible that there's some otherwise-valid QueryInterface code out there, somewhere, that implements case #4. When X returns and its teardown code executes, Intf2 is nil.

IOW, what is the type at offset zero? http://marc.info/?l=ms-dcom&m=104333347304640 Related Sites Visual Studio Visual Studio Integrate VSIP Program Microsoft .NET Microsoft Azure Connect Forums Blog Facebook LinkedIn Stack Overflow Twitter Visual Studio Events YouTube Developer Resources Code samples Documentation Downloads The time now is 03:39 PM. thought I'd give it a try anyway... 04-30-2003 #3 Scarlet7 View Profile View Forum Posts Registered User Join Date Mar 2003 Location UK Posts 170 >hr = CoGetClassObject(CLSID_CoCar, CLSCTX_ALL, NULL, IID_IClassFactory,

Okay, here's the bottom line. this contact form asked 6 years ago viewed 1378 times active 6 years ago Related 1queryinterface for interface failed0Can't access the COM interface0QueryInterface fails at casting inside COM-interface implementation0Access violation exception from Delphi's Supports CO_E_DLLNOTFOUND In-process DLL or handler DLL not found (depends on context). Virtual method call on a garbage value.

It'll be safe (I just checked; TInterfacedObject.QueryInterface implements case #1, as all reasonable QueryInterfaces should). Can I be sure that any COM object, written by anybody in any language, is guaranteed to pass back nil? (This is the problem with duplicated information — it's obvious from if that makes a difference between some of you helpin me out or not.... have a peek here Do the debug and release builds show the same problem? 4.

E_ACCESSDENIED General access failure (returned from LoadLib/CreateProcess). That probably means that you somehow tried to call a virtual method (or an interface method) on an object that hasn't been constructed yet. Look for '@@@@@' Code: #include "interfaces.h" #include "iid.h" #include int main() { CoInitialize(NULL); // This parameter is reserved, and should be NULL HRESULT hr; IClassFactory* pCF = NULL; ICreateCar* pICreateCar

First stop: the CPU view.

You can follow any responses to this entry through the RSS 2.0 feed. REGDB_E_CLASSNOTREG CLSID is not properly registered. Then try to figure out why offset zero contains 0xc instead of a valid address. –Marc Sherman Oct 12 '15 at 14:37 add a comment| active oldest votes Know someone who If you're not familiar with Delphi, an access violation usually means a null pointer dereference.

Specially when I navigate from one interface to other interface of MMC. Save time, search the archives at http://discuss.microsoft.com/archives/index.html . Help Print Public Report Report From: Delphi-BCB/ActiveX [ Add a report in this area ] Report #: 85604 Status: Need Feedback Access Violation in TServerEventDispatch.QueryInterface Project:Delphi Build #: http://arnoldtechweb.com/access-violation/access-violation-in-c.html Thanks!

Try temporarily AddRef'ing p before the call to OleCreatePropertyFrame(). If anyone can help, I'd appreciate it. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Are there any other threads or code that could be releasing the object referenced by pUnk?

But that would lead to a memory leak, not a crash. Thanks in advance. Why would two species of predator with the same prey cooperate? What I'm doing wrong?

A few rebus puzzles Can this number be written in (3^x) - 1 format? So I was wrong about the where, but right about the idea; the compiler does do some magic to nil the out parameter (when it's a magically-memory-managed type, at least). (Now char buff[80]; BSTR bstr; pStats->GetPetName(&bstr); WideCharToMultiByte(CP_ACP, NULL, bstr, -1, buff, 80, NULL, NULL); cout << buff << " has blown up! The dump is pointing to p->QueryInterface(GetIID(), reinterpret_cast(&pInterface)); The disassembly shows as below, //fill method is called.