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by: Ne |
last post by:
The first question is about coding a callback on Windows. In a class of
callback function, the function has to be static. Now the problem is that
from within this function, no non-static members can be accessed or invoked.
Seems like the only way is to change all the members to static.
I'd like to hear your opinions on such change.
Second question is generally how to implement callback in C++.
Thank you very much!
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by: Indiana Epilepsy and Child Neurology |
last post by:
Before asking this questions I've spent literally _years_ reading
(Meyer, Stroustrup, Holub), googling, asking more general design
questions, and just plain thinking about it. I am truly unable to
figure out what would be a "proper" OO design (in C++) for this.
There may be alternatives to writing my own ODBC handle classes, and I
may be interested in them, but I'd like to pursue this particular
problem, if for no other reason than to...
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by: guy lateur |
last post by:
Hi all,
Suppose you have this class:
class foo:
def bar():
Suppose you also have the strings "foo" and "bar". How can you obtain the
function foo.bar()?
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by: Marko |
last post by:
Hi,
There are few properties that don't follow the
traditional 'by handle' values.
For example:
System::Runtime::Serialization::Formatter ^f = ...;
System::Runtime::Serialization::StreamingContext ^c = ...;
f->Context = *c; (???)
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by: John Nagle |
last post by:
The Python SSL object offers two methods from obtaining
the info from an SSL certificate, "server()" and "issuer()".
The actual values in the certificate are a series of name/value
pairs in ASN.1 binary format. But what "server()" and "issuer()"
return are strings, with the pairs separated by "/". The
documentation at "http://docs.python.org/lib/ssl-objects.html"
says "Returns a string containing the ASN.1 distinguished name identifying...
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by: psujkov |
last post by:
Hi everybody,
int f(int a, int b) { return a + b; };
is it possible to obtain this function signature - int (int, int) in
this case - for use in boost::function_traits ?
e.g. std::cout << "f's arity : " << boost::function_traits<*obtaining
signature from f()*>::arity << std::endl;
please no macro solutions - only C++ (Boost MPL maybe could be useful
- but still don't see how)
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by: psujkov |
last post by:
Hi everybody,
in addition to my previous question, first of all this :
template<typename F>
void foo(const F& f)
{
std::cout << boost::function_traits<F>::arity << std::endl;
}
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by: Peterwkc |
last post by:
Hello all C++ expert programmer,
I have a handle class which point to another class and use the pointer as object.
I follow the code from C++ articles submited by someone in this forum. Unfortunately, my compilation is failed.
Below is my code :
// Main.cpp
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by: Donos |
last post by:
Hi
I have a HANDLE to an Event, like this..
HANDLE h = ::CreateEvent(NULL, FALSE, FALSE, NULL);
This is running in one thread in one class. For example we will call
that class as "Class A"
Now i want to use this HANDLE in another thread in another class to
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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