Because the ON_MESSAGE macro expects your handling function to have that particular signature.
In debug build, it appears to work, but in release mode it will generally cause a crash, unless you are very unlucky. If you are unlucky, it will cause a crash in a completely unrelated place, which is extremely difficult to debug.
This is the second time in a week I've posted information about the same 'fix' on CP, so don't feel too bad; it's probably one of the top 10 MFC errors.
I have a socket based internet application and would like to detect when a network connection goes up and down (preferrably the LAN connection), are there any events to register to?
When I move with my laptop from work to home, the network connection goes down and my chat application tries to reconnect because it sees that the socket was closed. The first reconnect attempt(s) fail and the next reconnect will be delayed for a longer time (e.g. an hour). When I am back home I would like to detect that the LAN connection is up again to trigger an immediate reconnect. I guess messenging application do something similar.
I have Visual C++ 8.0 Compiler. When I have precompiled headers file "precomp.h" and its cpp file "precomp.cpp" which is empty, I get always this warning: "precomp.cpp: no public symbols found, archive members will be inaccessible". In other file than it is OK and and clever, but in precompiled headers file NOT. Does know somebody, what should I do?
I get always this warning: "precomp.cpp: no public symbols found, archive members will be inaccessible". In other file than it is OK and and clever, but in precompiled headers file NOT. Does know somebody, what should I do?
Select that warning by single clicking on it. Do not double click. Press F1. This should give a detailed description as to what's the matter.
Obviously, since this should be in 'Operating Systems'
If you mean in a shell script, it is the same as for a Windows command prompt,
although in Windows you probably wouldn't use quote marks.
There is no such command in vi, since you'd just go into insert mode and type; if you wanted to substitute dashes for blank lines something like
I have to map (one to one,one to many) data frm two csv files taken in two tree controls ,th final output in a list control as mapped data.The problem i m facing is of bifurcating the data in the form of nodes(parent,child)to store it in tree control in MFC .Suppose the there is a text file and the data is like this
Now how to break this data in the form of Parent node and child node to store it in tree using Insert Item .
If any one knows its a humble request on my part to please explain through an example code .
my ids firstname.lastname@example.org
I am trying to create a custom list control. Its just a specialized List Control that I will use repeatedly in several different dialogs and property pages. But I have hit a bit of a snag:
I was handling the LVN_ITEMCHANGED message with OnLvnItemchanged, generated by Class Wizard. That was working fine. But then I also needed to handle LVN_ENDLABELEDIT with OnLvnEndlabeledit. For some reason which I do not understand, the introduction of the LVN_ENDLABLEEDIT handler has stopped the LVN_ITEMCHANGED message from being issued.
Can anybody advise? I need to handle both of these messages...
when i start my application they use ca. 10mb ram, ok, than when i open a file, they have, for example if this is a big file, ca.100mb, this is ok to, but now when i close this file, and free all global variables, my application should have again ca. 10mb like from beginning, right?
But this is not the case, my application stil have ca.70MB, 60MB more then normal, where is the memory???!!!
How to find where is the used memory RAM???
I can't find any memory leaks! is there any tool to do this?
with best regards
Last Visit: 31-Dec-99 19:00 Last Update: 28-Feb-24 17:13