|
Make a MAP file (project settings - Link - General - Generate mapfile). That shows the address that each function begins at. When you get a crash, take the address and compare it against the ones in the map file. That should be enough info to tell you which function the crash happened in.
--Mike--
"COM didn't solve the old version of DLL hell - it just provided us with a new and improved version of hell."
-- John Simmons, 1/22/2002
My really out-of-date homepage
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.
|
|
|
|
|
Thanks! Unfortunately, this hasn't gotten me much father... I've already narrowed down the problem with the try / catch's and so I know where it is happening. Any ideas how to figure out if I'm somehow trampling over memory? Or maybe another thread is trampling over this memory?
Thanks again,
swine
Check out Aephid Photokeeper, the powerful digital
photo album solution at www.aephid.com.
|
|
|
|
|
I had a problem with a multithreaded server I'm writing where I was using WSAEnumProtocols and the return buffer kept overwriting a lot of the other variables I had declared previously. It was changing pointer information to point to invalid areas of memory.
The only way to resolve it was by using GlobalAlloc on the variable, this was because instead of returning a variable with one instance it was returning an array. It took me forever to figure that out because PSDK would describe an array with everything else, besides just saying 'array' 
HomeNuke
----
"Nuke'd Your Home, Yet?"
Run your own PostNuke based web server from home
http://www.homenuke.com
|
|
|
|
|
I sympathize, but unfortunately this doesn't help much
Cheers,
swinefeaster
Check out Aephid Photokeeper, the powerful digital
photo album solution at www.aephid.com.
|
|
|
|
|
Hi,
I have some problems regarding the version that MSDN gives and what my debug session returns to me!
I have installed WTL and the settings is set for WTL
What else is needed, there are things that just does not work as they should, for instance WM_NOTIFY
What is the correct settings to get WTL working in Visual studio that is?
I debug programs but they do not give me the answer that MSDN documentation says
Kindst regards Ulf
|
|
|
|
|
Can you use CDONTS.NewMail in a C++ program? I would certainly think you could, but I can't find any documentation for C++, just VB and ASP, etc. Can anyone point me towards a sample in C++ that instantiates a COM object and calls it? If you haven't already guessed, I'm new to C++.
|
|
|
|
|
You can use this class to send email. It's not CDONTS, but it works. 
Jon Sagara
What about ![Green Alien | [Alien]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/alien.gif) ?
|
|
|
|
|
I am trying to calculate the elapsed time that occurs while a program in running. I need the time in milliseconds, can anyone help me.
|
|
|
|
|
Depending on how long your program runs, ::GetTickCount () should be good enough.
DWORD dwStart = ::GetTickCount ();
... do work ...
DWORD dwEnd = ::GetTickCount ();
printf ("Elapsed = %d", dwEnd - dwStart);
Now, if you program is only going to be running for a few seconds then GetTickCount might not be good enough. Then you have to use the miltimedia timers.
Tim Smith
Descartes Systems Sciences, Inc.
|
|
|
|
|
|
I have been trying to get the attributes from some XML all day!! Im slowly going mad! I have an XML file:-
//snip
<date name="12.12.3.98">12.56
//snip
I then have the following code. m_pCurrent is a node. I simply try and extract the attribute called name. Line 2 below works (unless i change the name of retrieval field - so I guess something is working) but when I try to access the value it just crashes with illegal access error... I have tried get_text, get_nodeValue etc etc.
m_pCurrent->get_attributes( &pNodeMap );
pScratchNode = pNodeMap->getNamedItem("name");
pScratchNode->get_text( &str );
AfxMessageBox( CString( str ) );
Thanks in advance
Ben
|
|
|
|
|
|
These are COM methods they return HRESULTs not interface pointers.
getNamedItem method takes two parameters.
From MSXML 4.0 documentation
C/C++ Syntax
HRESULT getNamedItem(
BSTR name,
IXMLDOMNode **namedItem);
Parameters
name [in]
The name of the attribute.
namedItem [out, retval]
An IXMLDOMNode object for the specified attribute. Returns Null
if the attribute node is not in this collection.
|
|
|
|
|
Hi! I am working on an application that requires the display of data graphically - ideally the same as in the AXE hex editor where one colour block represents one byte and a file can be shown as a panel. As a newbie, trying to navigate through the MFC documentation is a nightmare. Anyone able to assist please? If you're anywhere near Ireland, a solution is worth a number of pints of the black stuff!!
Brian Scott
|
|
|
|
|
Brian,
This should fit the bill nicely: http://codeproject.com/tips/frhed.asp.
PS: You can email me the brew. 
/ravi
"There is always one more bug..."
ravib@ravib.com
http://www.ravib.com
|
|
|
|
|
I have a COM server (A.exe) it supports two interfaces I1 and I2. I also have two services S1.exe and S2.exe. S1 creates and instance of I1 and S2 creates an instance of I2.
I expected to find only one A.exe running. Instead I find two. This is a problem for two reasons. S2 must release and recreate the interface regularly, causing the initialization of A.exe to happen way too often. The other issue is that I2 and I1 share a global array (protected by a MUTEX). This sharing clearly won't work if there are two separate eA.exes.
Is it possible to do this so only one A.exe is launched? If so, how?
We are supposed to release this today. The cyclic creation and destruction of a second A.exe was just observed for the first time today.
Thanks for the help,
Bill
|
|
|
|
|
Try this, it MAY solve your problem
Add this BEFORE the COM_MAP of your Interface
DECLARE_CLASSFACTORY_SINGLETON(CYourI1InterfaceClass)
- Greatest invention : "The Microchip!"
|
|
|
|
|
I tried it, but it didn't help. I think its because there are two apps accessing two different interfaces, rather than two apps accessing the same interface.
Next attempt is to use CoGetClassObject. MSDN says:
"Provides a pointer to an interface on a class object associated with a specified CLSID. CoGetClassObject locates, and if necessary, dynamically loads the executable code required to do this."
Sounds like it won't load the EXE if it's already there. This coincides with VB and GetObject versus CreateObject.
Unfortunately I get an error AND the wrong effect:
hr = CoGetClassObject(ID, CLSCTX_LOCAL_SERVER, NULL,
IID_IDispatch, (void **)&(m_pBroker));
if(hr = S_OK)
{
g_pErrorLog->LogError(4,"Get Class succeeded " + strObjName,_strModule);
} else {
hr = CoCreateInstance(ID, NULL, CLSCTX_LOCAL_SERVER,
IID_IDispatch, (void **)&(m_pBroker));
g_pErrorLog->LogError(4,"Try to CoCreate",_strModule);
}
When it executes the CoGetClassObject call, I get an ERROR_NO_INTERFACE message 0x80004002. AND a second .EXE is loaded. 
Thanks for the help,
Bill
|
|
|
|
|
If you use ATL, Check CComModule::RegisterClassObject call. In your WinMain function , _Module.RegisterClassObject. Check the second parameter - is REGCLS_SINGLEUSE ? If is so , the class factory will be accesible only for one client at a time.
|
|
|
|
|
Have you considered using the GIT or ROT? Singleton won't work because S1 and S2 are seperate processes any data in A won't be shared.
Bill Wilson wrote:
We are supposed to release this today. The cyclic creation and destruction of a second A.exe was just observed for the first time today.
Ah, testing.
|
|
|
|
|
Solon's suggestion put me on the right track. There are 3 modes in which to register:
REGCLS_SINGLEUSE (obvously wrong)
REGCLS_MULTIUSE (I ghought this one would work for me)
REGCLS_MULTI_SEPARATE (Its THIS ONE!!)
This is the one to use if you want multiple clients to share the same instance of the server. The use of the word SEPARATE fooled me into not realizing that if I wanted them to use the same server, I should use the SEPARATE option.  lol.
Thanks for the help,
Bill
|
|
|
|
|
I would like to automate Outlook Express for a dialog app in VC++ 6.0/.NET? I have found code for Outlook 2000 but I have it but hate it and this program will only be on my computer.
Thank you.
Real World Coding:
POP& BuyAPop(Money ADollar){...};
|
|
|
|
|
Unfortunately, Outlook Express cannot be automated. However, if all you want to do is automate the process of sending and receiving e-mails then there are many classes here at the CodeProject which might act as a starting point.
Edd Porter
http://www.mideddis.co.uk
|
|
|
|
|
Is it possible to add/set a transparent colour to a bitmap in a dialog bar?
.NET or not .NET? MFC is the question......
|
|
|
|
|
Watcha Folks,
I’m trying to find a way to monitor socket connections on a local machine, in particular to know how many sockets are open, and which ports their assigned to (even better would be to know which application is using which socket!). Does anyone have any idea how I can accomplish this??  Or if its even possible?
Dylan
Software Engineer
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
